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EPSON

32KB
Serial Interface Card

C82307 *

C823088 *

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Summary of Contents for C82307

Page 1: ...EPSON 32KB Serial Interface Card C82307 C823088 English Deutsch Français Español Italiano 4 0 0 0 2 7 3 C01 00 ...

Page 2: ...tal apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the Canadian Department of Communications Le présent appareil numérique n émet pas de bruits radioélectriques dépassant les limites applicables aux appareils numériques de Class B prescrites dans le règlement sur le brouillage radioélectrique édicté ...

Page 3: ...C82308 English 32 KB Schnittstellenkarte C82307 C82308 Deutsch Carte d Interface série 32Ko C82307 C82308 Français Módulo de interface en serie de 32KB C82307 C82308 Español Scheda dell interfaccia seriale da 32KB C82307 C82308 Italiano ...

Page 4: ...out DIP switch and jumper settings DIP switches Jumpers DATA ENTRY Serial communication About data entry Handshaking protocol SELF TEST Loopback mode Line monitor mode SPECIFICATIONS HARDWARE DESCRIPTION CIRCUIT DIAGRAMS INSTALLATION 2 3 4 4 5 5 14 16 16 16 17 21 21 22 23 25 28 31 ...

Page 5: ... that can be set at either RS 232D RS 422A or 20 mA Current Loop levels RS 232D has been revised from the former RS 232C Set the signal levels for RS 232D the same as for RS 232C Handshaking protocol using X on X off or DTR flag control Selectable data word structure that allows you to choose parity Odd Even None or Ignore and word bit settings either 7 or 8 bit Selection of baud rate settings fro...

Page 6: ...ttings of the C82307 C82308 interface card as well as a general description of serial data communication The C82307 C82308 option package contains the following items C 8 2 3 0 7 C 8 2 3 0 8 serial I F card 1 Optional connector lock nuts 2 Note When attaching the interface cable to the interface you may find that the screws of your interface cable do not fit into the connector lock nuts If this ha...

Page 7: ...pers These switches and jumpers are used for selecting These switches and jumpers are used for selecting various interface operations various interface operations Card layout Card layout The figure below shows the layout of the C82307 KS2308 card and the locations of the DIP switches and jumpers card and the locations of the DIP switches and jumpers Figure 1 Card layout 4 ...

Page 8: ...s of DIP switch and jumper settings should be made with the printer power turned off New settings become valid only when the printer is turned on DIP switches The settings on DIP switches allow you to change interface functions The three sets of DIP switches on the C82307 C82308 are labelled SWl SW2 and SW3 Each set contains a number of individual toggle type switches that can be set either on or ...

Page 9: ...DIP switch 1 Note Some printers have a selecting switch or function that allows you to select between the optional and original interfaces If you install the interface card in this type of printer you should set DIP switch 1 l on the interface card to ON and also change the setting in the printer to select the optional interface 6 ...

Page 10: ...e 1 The word structure for serial data is 1 start bit 7 or 8 data bits selectable 1 parity bit selectable l or more stop bits The table below shows the possible word structure combinations Table 2 Word structure You can select the parity check method with DIP switch settings See Table 3 Table 3 Parity check 7 ...

Page 11: ...DIP switch 2 interface operations The tables below contain information on switch functions and the factory setting of each Table 4 DIP switch 2 8 ...

Page 12: ...ong a single path and in a specified order The BPS Bits Per Second rate or speed at which these bits are transmitted can be selected using a combination of DIP switch settings Note In either RS 232D or Current Loop mode accurate data transfer cannot be guaranteed at a baud rate exceeding 19 200 BPS Table 5 Baud rate selection 9 ...

Page 13: ...nd interface selection Table 6 Handshaking and interface Note In RS 422A mode selecting DTR handshaking outputs the DTR flag through the DTR pin No 20 selecting X on X off handshaking fixes the value of the DTR The signal is always in a fixed flag reset state Signal polarity can be inverted with DIP switch 3 4 10 ...

Page 14: ...Table 7 Handshaking protocol selection Table 8 Interface selection 11 ...

Page 15: ...DIP switch 3 Interface operation The tables below contain information on switch functions and the factory setting of each Table 9 DIP switch 3 12 ...

Page 16: ... when RS 232D is selected 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 the four values listed in the table below data communication is resumed These settings are selectable by using the DIP switch...

Page 17: ... 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 Figure 2 Jumpers 14 ...

Page 18: ...terface jumpers Jl J2 and J3 must be connected for communications via the Current Loop interface When Current Loop is selected see the section on circuit diagrams to determine the correct current source and current return J5 J6 and J7 jumpers are connected at the factory you should not change these settings 15 ...

Page 19: ...nter 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 to regulate the flow of data transmission The two protocols available on the C82307 C82308 interface card are DTR and X on X off To enable data entry to the buffer while RS 232D is selected DSR and DCD must be held at the positi...

Page 20: ... 9 10 at RS 422A signal levels or through the TTY TXD terminal pin No 17 at 20 mA Current Loop signal levels After the X on flag has been set data can be accepted up to the maximum capacity of the buffer Transmit timing of the X off signal The X off signal is transmitted when the vacant area for bytes in the buffer drops to flag set level Data transfer after X off signal Data can be sent to the pr...

Page 21: ...interface card also provides for DTR handshaking protocol using either RS 232D RS 422A 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 flag set level the DTR...

Page 22: ...he TTY TXD pin No 17 in the case of Current Loop When DIP switch 3 l is ON buffer is disabled flag set timing is set to 16 bytes and flag reset timing is set to 32 bytes Table 12 Flag set reset conditions DTR Handshaking Flag is set RS 232D negative EIA not ready to level accept data RS 422A negative EIA level TRA TRB TRA inverted TRB noninverted 20 mA Current Loop low impedance Current on Flag is...

Page 23: ...lectable with DIP switch 3 6 and flag reset timing is selectable with DIP switches 3 2 and 3 3 Printer status error The flag is set immediately regardless of the remaining buffer capacity if the printer detects an error 20 ...

Page 24: ...ace card to first check the RAM and then print the RAM capacity and DIP switch settings The interface then sends the character codes 30H to 39H followed by a line feed command 0AH to the printer eight times See Table 14 for the terminal pin connections necessary with your selected interface type Table 14 Terminal pin connections Interface selection RS 232D RS 422A Transmitting terminal pin Receivi...

Page 25: ...During this test data on the RS 232D line RS 422A line or Current Loop line is printed in hexadecimal code The only difference between normal operation and this mode is that all data is converted into hexadecimal form 22 ...

Page 26: ...0 2 400 4 800 9 600 or 19 200 BPS selectable 3 Word length Start bit 1 bit Data bit 7 or 8 bits selectable Parity bit Odd even none or ignore selectable Stop bit 1 bit or more 4 Input signal polarity 1 RS 232D MARK logic l 3 to 25V SPACE logic 0 3 to 25V 2 RS 422A MARK logic 1 The RDA is negative 0 2 V to 6 V with respect to the RDB SPACE logic 0 The RDB is positive 0 2 V to 6 V with respect to th...

Page 27: ...mitted by the differential voltage of pin is No 9 to pin No 10 is MARK data transfer controlled as follows disabled X on 11H data transfer SPACE data transfer enabled enabled X off 13H data transfer Signal polarity can be disabled inverted by DIP switch setting Current Loop The impedance between pin No 17 and pin No 24 Data transmitted by the is as follows change of the impedance between pin No 17...

Page 28: ...ARDWARE DESCRIPTION 1 I F board connector EIA standard 25 pin D SUB female connector 2 For signal description and pin assignment refer to the table below Table 16 Signal Description and Pin Assignment 25 ...

Page 29: ...26 ...

Page 30: ...Note The column heading Direction refers to the direction of signal flow as viewed from the printer 27 ...

Page 31: ...IT DIAGRAMS RS 232D Transmitter Receiver Circuit Diagrams Figure 4 Transmitter Circuit Diagram l 3 MC145407 TXD From TXD l 3 MC145407 DTR From DTR Figure 5 Receiver Circuit Diagram 1 3 MC145407 RXD To RXD 28 ...

Page 32: ...RS 422A Transmitter Receiver Circuit Diagrams Figure 6 Transmitter Circuit Diagram Figure 7 Receiver Circuit Diagram 29 ...

Page 33: ...Current Loop Transmitter Receiver Circuit Diagrams Figure 8 Transmitter Circuit Diagram Figure 9 Receiver Circuit Diagram Note Set Jumpers J1 J2 and J3 referring these diagrams 30 ...

Page 34: ...uter before installing the interface card Make sure that all power and interface cables are removed Avoid touching the printer s circuit board contacts as many of these components are sensitive to static electric charges that may build up on your body 1 First adjust DIP switches and jumpers settings as necessary If the screws don t fit your interface cable you will need to replace the connector lo...

Page 35: ... sides of this interface card into the guides inside the compartment 3 Insert this interface card until the interface pins mate with the connector inside your printer 4 Secure the interface with the two screws 32 ...

Page 36: ...20099 SESTO S GIOVANNI MI Italy Phone 2 262331 Fax 2 2440750 SEIKO EPSON CORPORATION Hirooka Office 80 Harashinden Hirooka Shiojiri shi Nagano ken 399 07 Japan Phone 0263 52 2552 EPSON DEUTSCHLAND GmbH Zülpicher Straße 4000 Düsseldorf 11 F R Germany Phone 0211 56030 Telex 8584786 EPSON FRANCE S A 68 bis rue Marjolin 92300 Levallois Perret France Phone 1 47 373333 Telex 610657 EPSON SINGAPORE PTE L...

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