Epson C82302 User's Manual PDF

INTRODUCTION

The Serial Interface C82302* / C82304* is an interface board that allows asynchronous serial data communica- tion between a host computer and an Epson printer.

This board features:

EPSON

a 32K byte buffer that frees up your computer for other uses while your printer continues to print. 32KB two self-test functions that can help solve interface problems.

signal levels that can be set at either RS232C or 20 mA Current Loop.

Serial Interface

handshaking protocol using X-on/X-off or DTR flag control.

selectable data word structure. This allows you to choose parity (Odd. Even, or None) and word bit settings (either 7 or 8 bit).

selection of baud rate settings from 75 to 19,200 BPS. (Data transmission speed is limited to 1,200 BPS when the signal level is set to 20 mA Current Loop.)

This optional interface board is intended for use with the following Epson printers:

FX, FX+, JX, LX, RX, RX+, HI-80 IX-800, EX-800/1000, LQ-series (except for LQ-1500), SQ-series (except for SQ- 2000)

About this guide This guide is designed to give you detailed information on how to install your C82302* / C82304* serial interface board in a variety of Epson printers. Installation procedures vary slightly depending upon the printer model that you have.

Also included, are instructions on how to adjust the settings of the C82302*/C82304* interface board, as well as a general description of serial data communication.

The C82302*/C82304* option package contains the following items:

Optional connector loch nuts (2)

Note When attaching the interface cable to the interface. you nay find that the screws of your interface cable do not it into the connector lock nuts. If this happens you will need to replace the connector lock nuts with the optional ones provided in this package.

SETTING THE CONDITIONS

The C82302*/C82304* interface board has two sets of DIP (Dual In-line Package) switches, and 16 jumpers. These switch& and jumpers are used for selecting various interface operations.

Board layout The figure below shows the layout of the C82302*/ C82304* board, and the locations of the DIP switches and jumpers.

Figure 2. Board layout

3

2

INTRODUCTION

The Serial Interface C82302* / C82304* is an interface board that allows asynchronous serial data communica- tion between a host computer and an Epson printer.

This board features:

EPSON

a 32K byte buffer that frees up your computer for other uses while your printer continues to print. 32KB two self-test functions that can help solve interface problems.

signal levels that can be set at either RS232C or 20 mA Current Loop.

Serial Interface

handshaking protocol using X-on/X-off or DTR flag control.

selectable data word structure. This allows you to choose parity (Odd. Even, or None) and word bit settings (either 7 or 8 bit).

selection of baud rate settings from 75 to 19,200 BPS. (Data transmission speed is limited to 1,200 BPS when the signal level is set to 20 mA Current Loop.)

This optional interface board is intended for use with the following Epson printers:

FX, FX+, JX, LX, RX, RX+, HI-80 IX-800, EX-800/1000, LQ-series (except for LQ-1500), SQ-series (except for SQ- 2000)

About this guide This guide is designed to give you detailed information on how to install your C82302* / C82304* serial interface board in a variety of Epson printers. Installation procedures vary slightly depending upon the printer model that you have.

Also included, are instructions on how to adjust the settings of the C82302*/C82304* interface board, as well as a general description of serial data communication.

The C82302*/C82304* option package contains the following items:

Optional connector loch nuts (2)

Note When attaching the interface cable to the interface. you nay find that the screws of your interface cable do not it into the connector lock nuts. If this happens you will need to replace the connector lock nuts with the optional ones provided in this package.

SETTING THE CONDITIONS

The C82302*/C82304* interface board has two sets of DIP (Dual In-line Package) switches, and 16 jumpers. These switch& and jumpers are used for selecting various interface operations.

Board layout The figure below shows the layout of the C82302*/ C82304* board, and the locations of the DIP switches and jumpers.

Figure 2. Board layout

3

2

INTRODUCTION

The Serial Interface C82302* / C82304* is an interface board that allows asynchronous serial data communica- tion between a host computer and an Epson printer.

This board features:

EPSON

a 32K byte buffer that frees up your computer for other uses while your printer continues to print. 32KB two self-test functions that can help solve interface problems.

signal levels that can be set at either RS232C or 20 mA Current Loop.

Serial Interface

handshaking protocol using X-on/X-off or DTR flag control.

selectable data word structure. This allows you to choose parity (Odd. Even, or None) and word bit settings (either 7 or 8 bit).

selection of baud rate settings from 75 to 19,200 BPS. (Data transmission speed is limited to 1,200 BPS when the signal level is set to 20 mA Current Loop.)

This optional interface board is intended for use with the following Epson printers:

FX, FX+, JX, LX, RX, RX+, HI-80 IX-800, EX-800/1000, LQ-series (except for LQ-1500), SQ-series (except for SQ- 2000)

About this guide This guide is designed to give you detailed information on how to install your C82302* / C82304* serial interface board in a variety of Epson printers. Installation procedures vary slightly depending upon the printer model that you have.

Also included, are instructions on how to adjust the settings of the C82302*/C82304* interface board, as well as a general description of serial data communication.

The C82302*/C82304* option package contains the following items:

Optional connector loch nuts (2)

Note When attaching the interface cable to the interface. you nay find that the screws of your interface cable do not it into the connector lock nuts. If this happens you will need to replace the connector lock nuts with the optional ones provided in this package.

SETTING THE CONDITIONS

The C82302*/C82304* interface board has two sets of DIP (Dual In-line Package) switches, and 16 jumpers. These switch& and jumpers are used for selecting various interface operations.

Board layout The figure below shows the layout of the C82302*/ C82304* board, and the locations of the DIP switches and jumpers.

Figure 2. Board layout

3

2

INTRODUCTION

The Serial Interface C82302* / C82304* is an interface board that allows asynchronous serial data communica- tion between a host computer and an Epson printer.

This board features:

EPSON

a 32K byte buffer that frees up your computer for other uses while your printer continues to print. 32KB two self-test functions that can help solve interface problems.

signal levels that can be set at either RS232C or 20 mA Current Loop.

Serial Interface

handshaking protocol using X-on/X-off or DTR flag control.

selectable data word structure. This allows you to choose parity (Odd. Even, or None) and word bit settings (either 7 or 8 bit).

selection of baud rate settings from 75 to 19,200 BPS. (Data transmission speed is limited to 1,200 BPS when the signal level is set to 20 mA Current Loop.)

This optional interface board is intended for use with the following Epson printers:

FX, FX+, JX, LX, RX, RX+, HI-80 IX-800, EX-800/1000, LQ-series (except for LQ-1500), SQ-series (except for SQ- 2000)

About this guide This guide is designed to give you detailed information on how to install your C82302* / C82304* serial interface board in a variety of Epson printers. Installation procedures vary slightly depending upon the printer model that you have.

Also included, are instructions on how to adjust the settings of the C82302*/C82304* interface board, as well as a general description of serial data communication.

The C82302*/C82304* option package contains the following items:

Optional connector loch nuts (2)

Note When attaching the interface cable to the interface. you nay find that the screws of your interface cable do not it into the connector lock nuts. If this happens you will need to replace the connector lock nuts with the optional ones provided in this package.

SETTING THE CONDITIONS

The C82302*/C82304* interface board has two sets of DIP (Dual In-line Package) switches, and 16 jumpers. These switch& and jumpers are used for selecting various interface operations.

Board layout The figure below shows the layout of the C82302*/ C82304* board, and the locations of the DIP switches and jumpers.

Figure 2. Board layout

3

2

The c82302*/c82304* interface board has two sets of DIP (Dual in-line Package) switches, and 16 jumpers. These switches and jumpers are used for selecting various interface operations.

Board layout The figure below shows the layout of the (C82302*/ C82304* board, and the locations of the DIP switches and jumpers. Figure 1. Board layout

I - - 7,

4 m1

4

~qJqhstalltheCgL302*/-~krfaa,you nutyncedtoadjustsomeofthe=kings. Whennuking DIp&t&Kttin chan~,itbbUttO~SpOinted dtice,suchasa fall -point pen oramalllsawdljver.

CSUtiOll All changes of DIP switch and jumper settings show are made with the printer power turned off. the printer chacks and recognizes new settings only at the time the power is turned on

About DIP switches The two sets of DIP switches on the C82302*/C82304* are labelled SW1and SW2. Each set contains a number of individual toggIe type switches that can be set either onoroff. The individual switches are referred to by set (SW1 or SW2) and number. Therefore, the switch in set SW1 marked by the small number 3 is calIed DIP switch 1-3

5

DIP switch 1(Interface operations) The table below contains information on switch func- tions, and the factory setting of each switch. The switches on DIP switch 1 allow you to change interface functions.

L - - - - - - - --.Table 1- DIP smitch 1

s ON OFF z

l-1 WUdhI@h- 7bth (bib OFF

l-2 Parity check auble/diubk Irksam

E n a b l e I)iyMc O F F

l-3 Evcn/ald puity- Even Odd OFF

FLgtUIlUpaitivdnqative Negative Paithf! m I4 potalityae~ @JoteZ) OJaal)

l b OFF- - 1 14 OFF

Baudntelektion See Table 3. 1-7 OFF

la OFF

Note 1. Positive:

Data Entry Enabled DTR ON (+3V to +27v) Data Entry Disabled DTR OFF (-3V to -27V)

2 Negative: Data Entry Enabled DTR OFF (-3V to -27W Data Entry Disabled DTR ON (+3V to +27v)

6

Data word structure The data word structure is also operator selectable through DIP switch settings (see Table 1). The word structure for serial data is:

1 start bit + 7 or 8 data bits (selectable) + 1 Even or Odd parity bit (optional) + 1 or more stop bits

The table below shows the possible word structure Combinations.

Baud rate selection In serial data communication, data is transmitted in the form of bits. These data bits go out one at a time along a single path, and in a specified order. The BPS (Bits Per Second) rate, or speed at which these bits are transmit- ted, can be selected using a combination of DIP switch settings.

Note In the current loop mode, normal data transfer operation cannot be guaranteed at a baud rate setting exceeding 1,200 bps

7

The c82302*/c82304* interface board has two sets of DIP (Dual in-line Package) switches, and 16 jumpers. These switches and jumpers are used for selecting various interface operations.

Board layout The figure below shows the layout of the (C82302*/ C82304* board, and the locations of the DIP switches and jumpers. Figure 1. Board layout

I - - 7,

4 m1

4

~qJqhstalltheCgL302*/-~krfaa,you nutyncedtoadjustsomeofthe=kings. Whennuking DIp&t&Kttin chan~,itbbUttO~SpOinted dtice,suchasa fall -point pen oramalllsawdljver.

CSUtiOll All changes of DIP switch and jumper settings show are made with the printer power turned off. the printer chacks and recognizes new settings only at the time the power is turned on

About DIP switches The two sets of DIP switches on the C82302*/C82304* are labelled SW1and SW2. Each set contains a number of individual toggIe type switches that can be set either onoroff. The individual switches are referred to by set (SW1 or SW2) and number. Therefore, the switch in set SW1 marked by the small number 3 is calIed DIP switch 1-3

5

DIP switch 1(Interface operations) The table below contains information on switch func- tions, and the factory setting of each switch. The switches on DIP switch 1 allow you to change interface functions.

L - - - - - - - --.Table 1- DIP smitch 1

s ON OFF z

l-1 WUdhI@h- 7bth (bib OFF

l-2 Parity check auble/diubk Irksam

E n a b l e I)iyMc O F F

l-3 Evcn/ald puity- Even Odd OFF

FLgtUIlUpaitivdnqative Negative Paithf! m I4 potalityae~ @JoteZ) OJaal)

l b OFF- - 1 14 OFF

Baudntelektion See Table 3. 1-7 OFF

la OFF

Note 1. Positive:

Data Entry Enabled DTR ON (+3V to +27v) Data Entry Disabled DTR OFF (-3V to -27V)

2 Negative: Data Entry Enabled DTR OFF (-3V to -27W Data Entry Disabled DTR ON (+3V to +27v)

6

Data word structure The data word structure is also operator selectable through DIP switch settings (see Table 1). The word structure for serial data is:

1 start bit + 7 or 8 data bits (selectable) + 1 Even or Odd parity bit (optional) + 1 or more stop bits

The table below shows the possible word structure Combinations.

Baud rate selection In serial data communication, data is transmitted in the form of bits. These data bits go out one at a time along a single path, and in a specified order. The BPS (Bits Per Second) rate, or speed at which these bits are transmit- ted, can be selected using a combination of DIP switch settings.

Note In the current loop mode, normal data transfer operation cannot be guaranteed at a baud rate setting exceeding 1,200 bps

7

The c82302*/c82304* interface board has two sets of DIP (Dual in-line Package) switches, and 16 jumpers. These switches and jumpers are used for selecting various interface operations.

Board layout The figure below shows the layout of the (C82302*/ C82304* board, and the locations of the DIP switches and jumpers. Figure 1. Board layout

I - - 7,

4 m1

4

~qJqhstalltheCgL302*/-~krfaa,you nutyncedtoadjustsomeofthe=kings. Whennuking DIp&t&Kttin chan~,itbbUttO~SpOinted dtice,suchasa fall -point pen oramalllsawdljver.

CSUtiOll All changes of DIP switch and jumper settings show are made with the printer power turned off. the printer chacks and recognizes new settings only at the time the power is turned on

About DIP switches The two sets of DIP switches on the C82302*/C82304* are labelled SW1and SW2. Each set contains a number of individual toggIe type switches that can be set either onoroff. The individual switches are referred to by set (SW1 or SW2) and number. Therefore, the switch in set SW1 marked by the small number 3 is calIed DIP switch 1-3

5

DIP switch 1(Interface operations) The table below contains information on switch func- tions, and the factory setting of each switch. The switches on DIP switch 1 allow you to change interface functions.

L - - - - - - - --.Table 1- DIP smitch 1

s ON OFF z

l-1 WUdhI@h- 7bth (bib OFF

l-2 Parity check auble/diubk Irksam

E n a b l e I)iyMc O F F

l-3 Evcn/ald puity- Even Odd OFF

FLgtUIlUpaitivdnqative Negative Paithf! m I4 potalityae~ @JoteZ) OJaal)

l b OFF- - 1 14 OFF

Baudntelektion See Table 3. 1-7 OFF

la OFF

Note 1. Positive:

Data Entry Enabled DTR ON (+3V to +27v) Data Entry Disabled DTR OFF (-3V to -27V)

2 Negative: Data Entry Enabled DTR OFF (-3V to -27W Data Entry Disabled DTR ON (+3V to +27v)

6

Data word structure The data word structure is also operator selectable through DIP switch settings (see Table 1). The word structure for serial data is:

1 start bit + 7 or 8 data bits (selectable) + 1 Even or Odd parity bit (optional) + 1 or more stop bits

The table below shows the possible word structure Combinations.

Baud rate selection In serial data communication, data is transmitted in the form of bits. These data bits go out one at a time along a single path, and in a specified order. The BPS (Bits Per Second) rate, or speed at which these bits are transmit- ted, can be selected using a combination of DIP switch settings.

Note In the current loop mode, normal data transfer operation cannot be guaranteed at a baud rate setting exceeding 1,200 bps

7

The c82302*/c82304* interface board has two sets of DIP (Dual in-line Package) switches, and 16 jumpers. These switches and jumpers are used for selecting various interface operations.

Board layout The figure below shows the layout of the (C82302*/ C82304* board, and the locations of the DIP switches and jumpers. Figure 1. Board layout

I - - 7,

4 m1

4

~qJqhstalltheCgL302*/-~krfaa,you nutyncedtoadjustsomeofthe=kings. Whennuking DIp&t&Kttin chan~,itbbUttO~SpOinted dtice,suchasa fall -point pen oramalllsawdljver.

CSUtiOll All changes of DIP switch and jumper settings show are made with the printer power turned off. the printer chacks and recognizes new settings only at the time the power is turned on

About DIP switches The two sets of DIP switches on the C82302*/C82304* are labelled SW1and SW2. Each set contains a number of individual toggIe type switches that can be set either onoroff. The individual switches are referred to by set (SW1 or SW2) and number. Therefore, the switch in set SW1 marked by the small number 3 is calIed DIP switch 1-3

5

DIP switch 1(Interface operations) The table below contains information on switch func- tions, and the factory setting of each switch. The switches on DIP switch 1 allow you to change interface functions.

L - - - - - - - --.Table 1- DIP smitch 1

s ON OFF z

l-1 WUdhI@h- 7bth (bib OFF

l-2 Parity check auble/diubk Irksam

E n a b l e I)iyMc O F F

l-3 Evcn/ald puity- Even Odd OFF

FLgtUIlUpaitivdnqative Negative Paithf! m I4 potalityae~ @JoteZ) OJaal)

l b OFF- - 1 14 OFF

Baudntelektion See Table 3. 1-7 OFF

la OFF

Note 1. Positive:

Data Entry Enabled DTR ON (+3V to +27v) Data Entry Disabled DTR OFF (-3V to -27V)

2 Negative: Data Entry Enabled DTR OFF (-3V to -27W Data Entry Disabled DTR ON (+3V to +27v)

6

Data word structure The data word structure is also operator selectable through DIP switch settings (see Table 1). The word structure for serial data is:

1 start bit + 7 or 8 data bits (selectable) + 1 Even or Odd parity bit (optional) + 1 or more stop bits

The table below shows the possible word structure Combinations.

Baud rate selection In serial data communication, data is transmitted in the form of bits. These data bits go out one at a time along a single path, and in a specified order. The BPS (Bits Per Second) rate, or speed at which these bits are transmit- ted, can be selected using a combination of DIP switch settings.

Note In the current loop mode, normal data transfer operation cannot be guaranteed at a baud rate setting exceeding 1,200 bps

7

the printer buffer is enabled. The buffer is a memory which can temporarily store data from a computer. Table 3. Band rate selection

Note Switch combinations other than those shown above will be taken as a setting for

8

Buffer full recovery timing When the available space for bytes in the print buffer drops to 512 or 16 bytes, data entry is disabled. As the printer prints the data in the buffer, the vacant area for bytes increases. when this vacant area reaches one of

cation is resumed. These settings are selectable by using the DIP switches.

The jumper is a small terminal used for connecting or disconnecting a circuit. The jumper is on when the jumper plug covers both wires of the terminal. Jumper settings can be changed by either attaching or removing the rectangular jumper plug. If the jumper is to be turned off, connect it to just one of the two terminal pins as shown in the figure below. By doing this, you can avoid losing the unused jumper plug.

10

Dip switch 2 (interface operations)

The table below contains information on switch func- tions, and the factory setting of each switch The switches on DIP switch 2 allow you to change interface functions and select the self test modes .

Note This interface board operates when DIP switch 2-1 is turned on. By turning this switch off, the parallel interface of the printer can be used even with the serial interface board installed. You should, however, remove any unused interface cable to prevent the possibility of radio frequency interference.

9

Jumper settings The tables below give you information about the interface conditions that can be selected using jumpers. In all cases, ON denotes the connection of the jumper (covering both terminals), while OFF denotes the disconnection of the jumper.

11

the printer buffer is enabled. The buffer is a memory which can temporarily store data from a computer. Table 3. Band rate selection

Note Switch combinations other than those shown above will be taken as a setting for

8

Buffer full recovery timing When the available space for bytes in the print buffer drops to 512 or 16 bytes, data entry is disabled. As the printer prints the data in the buffer, the vacant area for bytes increases. when this vacant area reaches one of

cation is resumed. These settings are selectable by using the DIP switches.

The jumper is a small terminal used for connecting or disconnecting a circuit. The jumper is on when the jumper plug covers both wires of the terminal. Jumper settings can be changed by either attaching or removing the rectangular jumper plug. If the jumper is to be turned off, connect it to just one of the two terminal pins as shown in the figure below. By doing this, you can avoid losing the unused jumper plug.

10

Dip switch 2 (interface operations)

The table below contains information on switch func- tions, and the factory setting of each switch The switches on DIP switch 2 allow you to change interface functions and select the self test modes .

Note This interface board operates when DIP switch 2-1 is turned on. By turning this switch off, the parallel interface of the printer can be used even with the serial interface board installed. You should, however, remove any unused interface cable to prevent the possibility of radio frequency interference.

9

Jumper settings The tables below give you information about the interface conditions that can be selected using jumpers. In all cases, ON denotes the connection of the jumper (covering both terminals), while OFF denotes the disconnection of the jumper.

11

the printer buffer is enabled. The buffer is a memory which can temporarily store data from a computer. Table 3. Band rate selection

Note Switch combinations other than those shown above will be taken as a setting for

8

Buffer full recovery timing When the available space for bytes in the print buffer drops to 512 or 16 bytes, data entry is disabled. As the printer prints the data in the buffer, the vacant area for bytes increases. when this vacant area reaches one of

cation is resumed. These settings are selectable by using the DIP switches.

The jumper is a small terminal used for connecting or disconnecting a circuit. The jumper is on when the jumper plug covers both wires of the terminal. Jumper settings can be changed by either attaching or removing the rectangular jumper plug. If the jumper is to be turned off, connect it to just one of the two terminal pins as shown in the figure below. By doing this, you can avoid losing the unused jumper plug.

10

Dip switch 2 (interface operations)

The table below contains information on switch func- tions, and the factory setting of each switch The switches on DIP switch 2 allow you to change interface functions and select the self test modes .

Note This interface board operates when DIP switch 2-1 is turned on. By turning this switch off, the parallel interface of the printer can be used even with the serial interface board installed. You should, however, remove any unused interface cable to prevent the possibility of radio frequency interference.

9

Jumper settings The tables below give you information about the interface conditions that can be selected using jumpers. In all cases, ON denotes the connection of the jumper (covering both terminals), while OFF denotes the disconnection of the jumper.

11

the printer buffer is enabled. The buffer is a memory which can temporarily store data from a computer. Table 3. Band rate selection

Note Switch combinations other than those shown above will be taken as a setting for

8

Buffer full recovery timing When the available space for bytes in the print buffer drops to 512 or 16 bytes, data entry is disabled. As the printer prints the data in the buffer, the vacant area for bytes increases. when this vacant area reaches one of

cation is resumed. These settings are selectable by using the DIP switches.

The jumper is a small terminal used for connecting or disconnecting a circuit. The jumper is on when the jumper plug covers both wires of the terminal. Jumper settings can be changed by either attaching or removing the rectangular jumper plug. If the jumper is to be turned off, connect it to just one of the two terminal pins as shown in the figure below. By doing this, you can avoid losing the unused jumper plug.

10

Dip switch 2 (interface operations)

The table below contains information on switch func- tions, and the factory setting of each switch The switches on DIP switch 2 allow you to change interface functions and select the self test modes .

Note This interface board operates when DIP switch 2-1 is turned on. By turning this switch off, the parallel interface of the printer can be used even with the serial interface board installed. You should, however, remove any unused interface cable to prevent the possibility of radio frequency interference.

9

Jumper settings The tables below give you information about the interface conditions that can be selected using jumpers. In all cases, ON denotes the connection of the jumper (covering both terminals), while OFF denotes the disconnection of the jumper.

11

1. If the host computer is not equipped with a power supply for the Current loop interface, these jumpers must be connected to perform communica- tion via the Current loop interface

2 Either J8 or j9 jumper is connected at the factory, and you should not change this setting

3. Either JCX or JCF jumper must be connected. 4. Either JCL or JRS jumper must be connected.

Jumper settings for RS-232C and current loop Refer to the table below for information on the four available handshaking protocol selections. Table 7. Protocol selection in RS-232C mode

Table 8. Protocol selection in Current Loop mode I JCL OFF 1

12

x-dx-df Protocol X-on/X* protocol is a system in which the printer transmits a code to the computer to indicate that it cannot accept more data, and a second code when it is once again ready. This protocol can be performed under either RS232C or 20 mA Current Loop signal levels. The C82302*/C82304* interface board sends an X-on <11>H code when it is ready to receive data, and an X- off <13>H when it is busy. The X-On/X-off Signals may be transmitted from the TXD ten&al at RM32C signaJ kvels,orthroughthelTY-TXDWat28mA currentLooplevels.

Handshaking p r o t o c o l

Note X-on/X-off protocol cannot be performed when the buffer operation is disabled. But the DTR flag protocol is still possible.

After the X-on flag has been set, data can be accepted up to the maximum capacity of the buffer. l Transmit timing of X-off signal

The X-off signal is transmitted when the vacant area for bytes in the buffer drops to 512 or 16 bytes (selectable with DIP switch 2-6).

l Dati tn?nsjkapnx+igmll

Data can be sent to the printer even after the X-Off signal is transmitted as long as sufficient room for data remains in the buffer. However, if the transmit- ted data exceeds the vacant area in the buffer, it will be discarded. X-off character will be transmitted again when the remaining buffer capacity is actually 0 bytes. At the same time, BS code <08>H and / character <2F> H will be sent to the printer.

14

serial data communications The C82302*/C82304 interface allows you to select either RS-232C or 20 mA Current Loop signal leve data communication but never both at the same time This interface board also provides for either DTR (Data Terminal Ready) or X-on/X-off handshaking protocol.

About data entry To accommodate data entry, the C82302*/C82304* inte&eboardbquippedwithabufferthattempaar- ilystutesdatabcforetmn&ningittotheprinter. When thisbufferbaxnnesfull,anyadditionaltransmitteddata cannotbeacecpcdandi6discardd. Toprevaltd datala66,spedIhandshaIdng~~mpllwidcdbb n3gLllatetheBowofdatatransmissioh llletwopmb- a3l6wa5bletmthec823o2*-intataabotrd areIYrRandxar/xoff. Toenablethedablatbytothebuffer,DSRandDcD mustkhcidatthcpositive~levcl(SPACDarDIP switch2-Smustbeoff. WhenDIPswitch2-5isonand .eitkDsRorDcDi66ettothenegativeEIAlcvd fhiARTQ,allraxivingdatawiIlbeignoredbythe c823o2~~iIl~boald.

13

l Tmusnrit timing ofXon signal neX4nt6lgnalis-tiwhe!nthepowerisfirst tumedon,orwhenthevauntaminthebufferk greater than the preset value of the buffer recovery timing. Refer to Table 5. for buffer recovery timing information

Figure 3. X-on/x-off timing

DTR protocol This interface board also provides for DTR handshaking protocol using either RS-232C or Current Loop signal levels

Under this system, when the printer is turned on the DTR enters the SPACE state, meaning that data entry is enabled. When the rate of data reception is greater than that of printing, the buffer gradually fills up. once the vacant area for transmitted bytes drops to 512 or 1 bytes, the DTR sets the status flag to prohibit further. data entry. This flag is output through the DTR (pin No. 20) under RS-232C signal levels, and through the TTY- TXD (pin No. 17) under Current Loop levels.

15

1. If the host computer is not equipped with a power supply for the Current loop interface, these jumpers must be connected to perform communica- tion via the Current loop interface

2 Either J8 or j9 jumper is connected at the factory, and you should not change this setting

3. Either JCX or JCF jumper must be connected. 4. Either JCL or JRS jumper must be connected.

Jumper settings for RS-232C and current loop Refer to the table below for information on the four available handshaking protocol selections. Table 7. Protocol selection in RS-232C mode

Table 8. Protocol selection in Current Loop mode I JCL OFF 1

12

x-dx-df Protocol X-on/X* protocol is a system in which the printer transmits a code to the computer to indicate that it cannot accept more data, and a second code when it is once again ready. This protocol can be performed under either RS232C or 20 mA Current Loop signal levels. The C82302*/C82304* interface board sends an X-on <11>H code when it is ready to receive data, and an X- off <13>H when it is busy. The X-On/X-off Signals may be transmitted from the TXD ten&al at RM32C signaJ kvels,orthroughthelTY-TXDWat28mA currentLooplevels.

Handshaking p r o t o c o l

Note X-on/X-off protocol cannot be performed when the buffer operation is disabled. But the DTR flag protocol is still possible.

After the X-on flag has been set, data can be accepted up to the maximum capacity of the buffer. l Transmit timing of X-off signal

The X-off signal is transmitted when the vacant area for bytes in the buffer drops to 512 or 16 bytes (selectable with DIP switch 2-6).

l Dati tn?nsjkapnx+igmll

Data can be sent to the printer even after the X-Off signal is transmitted as long as sufficient room for data remains in the buffer. However, if the transmit- ted data exceeds the vacant area in the buffer, it will be discarded. X-off character will be transmitted again when the remaining buffer capacity is actually 0 bytes. At the same time, BS code <08>H and / character <2F> H will be sent to the printer.

14

serial data communications The C82302*/C82304 interface allows you to select either RS-232C or 20 mA Current Loop signal leve data communication but never both at the same time This interface board also provides for either DTR (Data Terminal Ready) or X-on/X-off handshaking protocol.

About data entry To accommodate data entry, the C82302*/C82304* interface board is equipped with a buffer that temporar- ily stores data before transferring it to the printer When this buffer becomes full, any additional transmitted data cannot be accepted and is discarded. To prevent such data loss, special handshaking protocols are provided regulate the flow of data transmissioh llletwopmb- a3l6wa5bletmthec823o2*-intataabotrd areIYrRandxar/xoff. Toenablethedablatbytothebuffer,DSRandDcD mustkhcidatthcpositive~levcl(SPACDarDIP switch2-Smustbeoff. WhenDIPswitch2-5isonand .eitkDsRorDcDi66ettothenegativeEIAlcvd fhiARTQ,allraxivingdatawiIlbeignoredbythe c823o2~~iIl~boald.

13

l Tmusnrit timing ofXon signal neX4nt6lgnalis-tiwhe!nthepowerisfirst tumedon,orwhenthevauntaminthebufferk greater than the preset value of the buffer recovery timing. Refer to Table 5. for buffer recovery timing information

Figure 3. X-on/x-off timing

DTR protocol This interface board also provides for DTR handshaking protocol using either RS-232C or Current Loop signal levels

Under this system, when the printer is turned on the DTR enters the SPACE state, meaning that data entry is enabled. When the rate of data reception is greater than that of printing, the buffer gradually fills up. once the vacant area for transmitted bytes drops to 512 or 1 bytes, the DTR sets the status flag to prohibit further. data entry. This flag is output through the DTR (pin No. 20) under RS-232C signal levels, and through the TTY- TXD (pin No. 17) under Current Loop levels.

15

1. If the host computer is not equipped with a power supply for the Current loop interface, these jumpers must be connected to perform communica- tion via the Current loop interface

2 Either J8 or j9 jumper is connected at the factory, and you should not change this setting

3. Either JCX or JCF jumper must be connected. 4. Either JCL or JRS jumper must be connected.

Jumper settings for RS-232C and current loop Refer to the table below for information on the four available handshaking protocol selections. Table 7. Protocol selection in RS-232C mode

Table 8. Protocol selection in Current Loop mode I JCL OFF 1

12

x-on/x-off Protocol X-on/X-off protocol is a system in which the printer transmits a code to the computer to indicate that it cannot accept more data, and a second code when it is once again ready. This protocol can be performed under either RS232C or 20 mA Current Loop signal levels. The C82302*/C82304* interface board sends an X-on <11>H code when it is ready to receive data, and an X- off <13>H when it is busy. The X-On/X-off Signals may be transmitted from the TXD ten&al at RM32C signaJ kvels,orthroughthelTY-TXDWat28mA currentLooplevels.

Handshaking p r o t o c o l

Note X-on/X-off protocol cannot be performed when the buffer operation is disabled. But the DTR flag protocol is still possible.

After the X-on flag has been set, data can be accepted up to the maximum capacity of the buffer. l Transmit timing of X-off signal

The X-off signal is transmitted when the vacant area for bytes in the buffer drops to 512 or 16 bytes (selectable with DIP switch 2-6).

l Dati tn?nsjkapnx+igmll

Data can be sent to the printer even after the X-Off signal is transmitted as long as sufficient room for data remains in the buffer. However, if the transmit- ted data exceeds the vacant area in the buffer, it will be discarded. X-off character will be transmitted again when the remaining buffer capacity is actually 0 bytes. At the same time, BS code <08>H and / character <2F> H will be sent to the printer.

14

serial data communications The C82302*/C82304 interface allows you to select either RS-232C or 20 mA Current Loop signal leve data communication but never both at the same time This interface board also provides for either DTR (Data Terminal Ready) or X-on/X-off handshaking protocol.

About data entry To accommodate data entry, the C82302*/C82304* inte&eboardbquippedwithabufferthattempaar- ilystutesdatabcforetmn&ningittotheprinter. When thisbufferbaxnnesfull,anyadditionaltransmitteddata cannotbeacecpcdandi6discardd. Toprevaltd datala66,spedIhandshaIdng~~mpllwidcdbb n3gLllatetheBowofdatatransmissioh llletwopmb- a3l6wa5bletmthec823o2*-intataabotrd areIYrRandxar/xoff. Toenablethedablatbytothebuffer,DSRandDcD mustkhcidatthcpositive~levcl(SPACDarDIP switch2-Smustbeoff. WhenDIPswitch2-5isonand .eitkDsRorDcDi66ettothenegativeEIAlcvd fhiARTQ,allraxivingdatawiIlbeignoredbythe c823o2~~iIl~boald.

13

l Tmusnrit timing ofXon signal neX4nt6lgnalis-tiwhe!nthepowerisfirst tumedon,orwhenthevauntaminthebufferk greater than the preset value of the buffer recovery timing. Refer to Table 5. for buffer recovery timing information

Figure 3. X-on/x-off timing

DTR protocol This interface board also provides for DTR handshaking protocol using either RS-232C or Current Loop signal levels

Under this system, when the printer is turned on the DTR enters the SPACE state, meaning that data entry is enabled. When the rate of data reception is greater than that of printing, the buffer gradually fills up. once the vacant area for transmitted bytes drops to 512 or 1 bytes, the DTR sets the status flag to prohibit further. data entry. This flag is output through the DTR (pin No. 20) under RS-232C signal levels, and through the TTY- TXD (pin No. 17) under Current Loop levels.

15

1. If the host computer is not equipped with a power supply for the Current loop interface, these jumpers must be connected to perform communica- tion via the Current loop interface

2 Either J8 or j9 jumper is connected at the factory, and you should not change this setting

3. Either JCX or JCF jumper must be connected. 4. Either JCL or JRS jumper must be connected.

Jumper settings for RS-232C and current loop Refer to the table below for information on the four available handshaking protocol selections. Table 7. Protocol selection in RS-232C mode

Table 8. Protocol selection in Current Loop mode I JCL OFF 1

12

x-dx-df Protocol X-on/X* protocol is a system in which the printer transmits a code to the computer to indicate that it cannot accept more data, and a second code when it is once again ready. This protocol can be performed under either RS232C or 20 mA Current Loop signal levels. The C82302*/C82304* interface board sends an X-on <11>H code when it is ready to receive data, and an X- off <13>H when it is busy. The X-On/X-off Signals may be transmitted from the TXD ten&al at RM32C signaJ kvels,orthroughthelTY-TXDWat28mA currentLooplevels.

Handshaking p r o t o c o l

Note X-on/X-off protocol cannot be performed when the buffer operation is disabled. But the DTR flag protocol is still possible.

After the X-on flag has been set, data can be accepted up to the maximum capacity of the buffer. l Transmit timing of X-off signal

The X-off signal is transmitted when the vacant area for bytes in the buffer drops to 512 or 16 bytes (selectable with DIP switch 2-6).

l Dati tn?nsjkapnx+igmll

Data can be sent to the printer even after the X-Off signal is transmitted as long as sufficient room for data remains in the buffer. However, if the transmit- ted data exceeds the vacant area in the buffer, it will be discarded. X-off character will be transmitted again when the remaining buffer capacity is actually 0 bytes. At the same time, BS code <08>H and / character <2F> H will be sent to the printer.

14

serial data communications The C82302*/C82304 interface allows you to select either RS-232C or 20 mA Current Loop signal leve data communication but never both at the same time This interface board also provides for either DTR (Data Terminal Ready) or X-on/X-off handshaking protocol.

About data entry To accommodate data entry, the C82302*/C82304* inte&eboardbquippedwithabufferthattempaar- ilystutesdatabcforetmn&ningittotheprinter. When thisbufferbaxnnesfull,anyadditionaltransmitteddata cannotbeacecpcdandi6discardd. Toprevaltd datala66,spedIhandshaIdng~~mpllwidcdbb n3gLllatetheBowofdatatransmissioh llletwopmb- a3l6wa5bletmthec823o2*-intataabotrd areIYrRandxar/xoff. Toenablethedablatbytothebuffer,DSRandDcD mustkhcidatthcpositive~levcl(SPACDarDIP switch2-Smustbeoff. WhenDIPswitch2-5isonand .eitkDsRorDcDi66ettothenegativeEIAlcvd fhiARTQ,allraxivingdatawiIlbeignoredbythe c823o2~~iIl~boald.

13

l Tmusnrit timing ofXon signal neX4nt6lgnalis-tiwhe!nthepowerisfirst tumedon,orwhenthevauntaminthebufferk greater than the preset value of the buffer recovery timing. Refer to Table 5. for buffer recovery timing information

Figure 3. X-on/x-off timing

DTR protocol This interface board also provides for DTR handshaking protocol using either RS-232C or Current Loop signal levels

Under this system, when the printer is turned on the DTR enters the SPACE state, meaning that data entry is enabled. When the rate of data reception is greater than that of printing, the buffer gradually fills up. once the vacant area for transmitted bytes drops to 512 or 1 bytes, the DTR sets the status flag to prohibit further. data entry. This flag is output through the DTR (pin No. 20) under RS-232C signal levels, and through the TTY- TXD (pin No. 17) under Current Loop levels.

15

_. tucontinuatopxinL WhenthtMclntUeaforG ra&u~thepresetreaweryvaIue(seeTab~5Me

flagisresetanddataartybagainarrbled-

Note ~channtl(pinNo.11~andDTR~~No.zD~uc intwLuyamneckdontheinterfaaboardandmwt have idmtid signal levds.

When buffer operation is disabled UAdatttiswnditi~the5gisoutputfromtheDTR (pinNo.u))intheQseofRs232GudfromLhcI?y- I7CD@inNo.l7EnthecaseofCumnt~.

DukngbufferdisabledoperatioAonlyasi@bytcof dataanbehandledatatime OMetheinm transfersabyteofdabtotheprhkr,thcstatus5gWill be~Afterthfsdataisprillt6d,th65gwiIlrr#t,d &laeAtlywilIbeenabledagah

PriAterrhtustrrm lhe5gwilIbesetimmedlately~essdthc rex&iIlgbufferupalityifthepriA~mchaa6trkd e r r o r . lheerrorsignalQinNo.lof~winthcnk low.

nwseutatmodaankdtcredbyDIPswit&,2-7 d24. Toselectasdftestmukfhttumofftht powatOthtphlbEfd~~changeDIPSWitch settbg. wluAtkpowerLtumedba~ohthencw settings l utomatiully WmC intO tffuL To ait i&n t& 8&tES&tWIloffthcpowaudrl%!tth4?DIPswiteha. Table 9. Self modes

16 17

SPECIFICATIONS

Synchronizing Method: Asynchronous

Baud Rate: 75,110,134.5,150,200,300,600,1200, 1800,2400,4800,9600,19200 BPS (selectable)

Word length: Start bit: 1 bit Data bit: 7 or 8 bits klectable) Parity bit: Odd, even or none (selectable) Stop bit: 1 bit or more

Input signal polarity: 1) WithRS232Cz

MARK = logic 1 f-3 to -27V SPACE = logic 0 (+3 to +m

2) Cumnt loop: MARK = logic 1 (Current ON) SPACE = logic 0 (Current OFF)

5. Handshaking Tub& 10. Handshaking

RW32C ccmtrol laop usingMRFrotoco1* whcntherigvl w-hmtheimpedme

conditionrtpinN0.11 bawccnpinNo.17 andpinNo.2Ois: andpinNo.ML: ~~~t.Lnhyh WWOVlARJQI)rtA

enhyidiubled.

EsXaN/Xam Datl is-ttd mmisbnsmittedby fmmpinNo.2 tbedungeoftbe ~4x4 CY I>K mm impedAncebctwcen entIyisenAbld. pinNo.17andpin xam CI~X~Z mu No. 24. entry h disabled. xau 4btf mktr

entry is enabled. xon <13>~ mu entry is disabled.

l DTR signal can be fixed SPACE by jumper JRF. TXDsignalcanbefixedh4ARKbyjumperJRX. (No transmission of X-ON/X-OFF characters from TXD.)

Note &ration is not maranteed when using the current k&p mode at ratg over 1200 BPS. -

_. tucontinuatopxinL WhenthtMclntUeaforG ra&u~thepresetreaweryvaIue(seeTab~5Me

flagisresetanddataartybagainarrbled-

Note ~channtl(pinNo.11~andDTR~~No.zD~uc intwLuyamneckdontheinterfaaboardandmwt have idmtid signal levds.

When buffer operation is disabled UAdatttiswnditi~the5gisoutputfromtheDTR (pinNo.u))intheQseofRs232GudfromLhcI?y- I7CD@inNo.l7EnthecaseofCumnt~.

DukngbufferdisabledoperatioAonlyasi@bytcof dataanbehandledatatime OMetheinm transfersabyteofdabtotheprhkr,thcstatus5gWill be~Afterthfsdataisprillt6d,th65gwiIlrr#t,d &laeAtlywilIbeenabledagah

PriAterrhtustrrm lhe5gwilIbesetimmedlately~essdthc rex&iIlgbufferupalityifthepriA~mchaa6trkd e r r o r . lheerrorsignalQinNo.lof~winthcnk low.

nwseutatmodaankdtcredbyDIPswit&,2-7 d24. Toselectasdftestmukfhttumofftht powatOthtphlbEfd~~changeDIPSWitch settbg. wluAtkpowerLtumedba~ohthencw settings automatiully WmC intO tffuL To ait i&n t& 8&tES&tWIloffthcpowaudrl%!tth4?DIPswiteha. Table 9. Self modes

16 17

SPECIFICATIONS

Synchronizing Method: Asynchronous

Baud Rate: 75,110,134.5,150,200,300,600,1200, 1800,2400,4800,9600,19200 BPS (selectable)

Word length: Start bit: 1 bit Data bit: 7 or 8 bits klectable) Parity bit: Odd, even or none (selectable) Stop bit: 1 bit or more

Input signal polarity: 1) WithRS232Cz

MARK = logic 1 f-3 to -27V SPACE = logic 0 (+3 to +m

2) Cumnt loop: MARK = logic 1 (Current ON) SPACE = logic 0 (Current OFF)

5. Handshaking Tub& 10. Handshaking

RW32C ccmtrol laop usingMRFrotoco1* whcntherigvl w-hmtheimpedme

conditionrtpinN0.11 bawccnpinNo.17 andpinNo.2Ois: andpinNo.ML: ~~~t.Lnhyh WWOVlARJQI)rtA

enhyidiubled.

EsXaN/Xam Datl is-ttd mmisbnsmittedby fmmpinNo.2 tbedungeoftbe ~4x4 CY I>K mm impedAncebctwcen entIyisenAbld. pinNo.17andpin xam CI~X~Z mu No. 24. entry h disabled. xau 4btf mktr

entry is enabled. xon <13>~ mu entry is disabled.

l DTR signal can be fixed SPACE by jumper JRF. TXDsignalcanbefixedh4ARKbyjumperJRX. (No transmission of X-ON/X-OFF characters from TXD.)

Note &ration is not maranteed when using the current k&p mode at ratg over 1200 BPS. -

_. tucontinuatopxinL WhenthtMclntUeaforG ra&u~thepresetreaweryvaIue(seeTab~5Me

flagisresetanddataartybagainarrbled-

Note ~channtl(pinNo.11~andDTR~~No.zD~uc intwLuyamneckdontheinterfaaboardandmwt have idmtid signal levds.

When buffer operation is disabled UAdatttiswnditi~the5gisoutputfromtheDTR (pinNo.u))intheQseofRs232GudfromLhcI?y- I7CD@inNo.l7EnthecaseofCumnt~.

DukngbufferdisabledoperatioAonlyasi@bytcof dataanbehandledatatime OMetheinm transfersabyteofdabtotheprhkr,thcstatus5gWill be~Afterthfsdataisprillt6d,th65gwiIlrr#t,d &laeAtlywilIbeenabledagah

PriAterrhtustrrm lhe5gwilIbesetimmedlately~essdthc rex&iIlgbufferupalityifthepriA~mchaa6trkd e r r o r . lheerrorsignalQinNo.lof~winthcnk low.

nwseutatmodaankdtcredbyDIPswit&,2-7 d24. Toselectasdftestmukfhttumofftht powatOthtphlbEfd~~changeDIPSWitch settbg. wluAtkpowerLtumedba~ohthencw settings l utomatiully WmC intO tffuL To ait i&n t& 8&tES&tWIloffthcpowaudrl%!tth4?DIPswiteha. Table 9. Self modes

16 17

SPECIFICATIONS

Synchronizing Method: Asynchronous

Baud Rate: 75,110,134.5,150,200,300,600,1200, 1800,2400,4800,9600,19200 BPS (selectable)

Word length: Start bit: 1 bit Data bit: 7 or 8 bits klectable) Parity bit: Odd, even or none (selectable) Stop bit: 1 bit or more

Input signal polarity: 1) WithRS232Cz

MARK = logic 1 f-3 to -27V SPACE = logic 0 (+3 to +m

2) Cumnt loop: MARK = logic 1 (Current ON) SPACE = logic 0 (Current OFF)

5. Handshaking Tub& 10. Handshaking

RW32C ccmtrol laop usingMRFrotoco1* whcntherigvl w-hmtheimpedme

conditionrtpinN0.11 bawccnpinNo.17 andpinNo.2Ois: andpinNo.ML: ~~~t.Lnhyh WWOVlARJQI)rtA

enhyidiubled.

EsXaN/Xam Datl is-ttd mmisbnsmittedby fmmpinNo.2 tbedungeoftbe ~4x4 CY I>K mm impedAncebctwcen entIyisenAbld. pinNo.17andpin xam CI~X~Z mu No. 24. entry h disabled. xau 4btf mktr

entry is enabled. xon <13>~ mu entry is disabled.

l DTR signal can be fixed SPACE by jumper JRF. TXDsignalcanbefixedh4ARKbyjumperJRX. (No transmission of X-ON/X-OFF characters from TXD.)

Note &ration is not maranteed when using the current k&p mode at ratg over 1200 BPS. -

_. tucontinuatopxinL WhenthtMclntUeaforG ra&u~thepresetreaweryvaIue(seeTab~5Me

flagisresetanddataartybagainarrbled-

Note ~channtl(pinNo.11~andDTR~~No.zD~uc intwLuyamneckdontheinterfaaboardandmwt have idmtid signal levds.

When buffer operation is disabled UAdatttiswnditi~the5gisoutputfromtheDTR (pinNo.u))intheQseofRs232GudfromLhcI?y- I7CD@inNo.l7EnthecaseofCumnt~.

DukngbufferdisabledoperatioAonlyasi@bytcof dataanbehandledatatime OMetheinm transfersabyteofdabtotheprhkr,thcstatus5gWill be~Afterthfsdataisprillt6d,th65gwiIlrr#t,d &laeAtlywilIbeenabledagah

PriAterrhtustrrm lhe5gwilIbesetimmedlately~essdthc rex&iIlgbufferupalityifthepriA~mchaa6trkd e r r o r . lheerrorsignalQinNo.lof~winthcnk low.

nwseutatmodaankdtcredbyDIPswit&,2-7 d24. Toselectasdftestmukfhttumofftht powatOthtphlbEfd~~changeDIPSWitch settbg. wluAtkpowerLtumedba~ohthencw settings l utomatiully WmC intO tffuL To ait i&n t& 8&tES&tWIloffthcpowaudrl%!tth4?DIPswiteha. Table 9. Self modes

16 17

SPECIFICATIONS

Synchronizing Method: Asynchronous

Baud Rate: 75,110,134.5,150,200,300,600,1200, 1800,2400,4800,9600,19200 BPS (selectable)

Word length: Start bit: 1 bit Data bit: 7 or 8 bits klectable) Parity bit: Odd, even or none (selectable) Stop bit: 1 bit or more

Input signal polarity: 1) WithRS232Cz

MARK = logic 1 f-3 to -27V SPACE = logic 0 (+3 to +m

2) Cumnt loop: MARK = logic 1 (Current ON) SPACE = logic 0 (Current OFF)

5. Handshaking Tub& 10. Handshaking

RW32C ccmtrol laop usingMRFrotoco1* whcntherigvl w-hmtheimpedme

conditionrtpinN0.11 bawccnpinNo.17 andpinNo.2Ois: andpinNo.ML: ~~~t.Lnhyh WWOVlARJQI)rtA

enhyidiubled.

EsXaN/Xam Datl is-ttd mmisbnsmittedby fmmpinNo.2 tbedungeoftbe ~4x4 CY I>K mm impedAncebctwcen entIyisenAbld. pinNo.17andpin xam CI~X~Z mu No. 24. entry h disabled. xau 4btf mktr

entry is enabled. xon <13>~ mu entry is disabled.

l DTR signal can be fixed SPACE by jumper JRF. TXDsignalcanbefixedh4ARKbyjumperJRX. (No transmission of X-ON/X-OFF characters from TXD.)

Note &ration is not maranteed when using the current k&p mode at ratg over 1200 BPS. -

1. I/F board connector : EIA standard 25-pin Cannon type.

2 For signal description and pin assignment, refer to the table below:

Table 11. Signal Description and Pin Assignment IPin No. 1 Simul Nmc 1Dirution 1 DcraiptiOll I

1 Protectiw Gnlund - -gmund

2 Truumitted Data CIXD) o u t TrrMmitted 5eriAl data

4 Rquat to Smd CRTS) out This sigml is &qa at the

podtive ETA level.

I 6 nmbtl cd

I-

21 20 Data TamlNl bweitthepduityd-thb*gnal

hdy (DTR) Out bytheDlPrwit&l~.aranfii thepomtliveEIAkwibythe

iumprP=

Note 1 The column heading Direction refers to the

direction of signal flow as viewed from the printer. 2 All signals except TTY-TXD and TTY-RXD comply

with EIA RS-232C standard.

RECOMMENDED CIRCUIT CONNECTIONS

Recommended line driver and line receiver for RS-232C signal level settings., (As viewed from the host com- puter.) Figure 4. RS-232C

!Sefial Inteffaa Boafd

MC 1499L 75199 or 0quivMnt

Recommended line interface circuit for 20 mA Current Loop signal level settings. (As viewed from the host computer .) Fipre 5. Currmt Loop I I

Note The value of R should be selected so that the loop current is set between 10 and 20 mA. The u+V should be 3v to 24v.

22

1. I/F board connector : EIA standard 25-pin Cannon type.

2 For signal description and pin assignment, refer to the table below:

Table 11. Signal Description and Pin Assignment IPin No. 1 Simul Nmc 1Dirution 1 DcraiptiOll I

1 Protectiw Gnlund - -gmund

2 Truumitted Data CIXD) o u t TrrMmitted 5eriAl data

4 Rquat to Smd CRTS) out This sigml is &qa at the

podtive ETA level.

I 6 nmbtl cd

I-

21 20 Data TamlNl bweitthepduityd-thb*gnal

hdy (DTR) Out bytheDlPrwit&l~.aranfii thepomtliveEIAkwibythe

iumprP=

Note 1 The column heading Direction refers to the

direction of signal flow as viewed from the printer. 2 All signals except TTY-TXD and TTY-RXD comply

with EIA RS-232C standard.

RECOMMENDED CIRCUIT CONNECTIONS

Recommended line driver and line receiver for RS-232C signal level settings., (As viewed from the host com- puter.) Figure 4. RS-232C

!Sefial Inteffaa Boafd

MC 1499L 75199 or 0quivMnt

Recommended line interface circuit for 20 mA Current Loop signal level settings. (As viewed from the host computer .) Fipre 5. Currmt Loop I I

Note The value of R should be selected so that the loop current is set between 10 and 20 mA. The u+V should be 3v to 24v.

22

1. I/F board connector : EIA standard 25-pin Cannon type.

2 For signal description and pin assignment, refer to the table below:

Table 11. Signal Description and Pin Assignment IPin No. 1 Simul Nmc 1Dirution 1 DcraiptiOll I

1 Protectiw Gnlund - -gmund

2 Truumitted Data CIXD) o u t TrrMmitted 5eriAl data

4 Rquat to Smd CRTS) out This sigml is &qa at the

podtive ETA level.

I 6 nmbtl cd

I-

21 20 Data TamlNl bweitthepduityd-thb*gnal

hdy (DTR) Out bytheDlPrwit&l~.aranfii thepomtliveEIAkwibythe

iumprP=

Note 1 The column heading Direction refers to the

direction of signal flow as viewed from the printer. 2 All signals except TTY-TXD and TTY-RXD comply

with EIA RS-232C standard.

RECOMMENDED CIRCUIT CONNECTIONS

Recommended line driver and line receiver for RS-232C signal level settings., (As viewed from the host com- puter.) Figure 4. RS-232C

!Sefial Inteffaa Boafd

MC 1499L 75199 or 0quivMnt

Recommended line interface circuit for 20 mA Current Loop signal level settings. (As viewed from the host computer .) Fipre 5. Currmt Loop I I

Note The value of R