Dascom 2600 User Guide - Manual (Page 110)

Tally Dascom 2610
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7.3.4 Optional Serial Interface RS232C
Your printer’s serial interface supports the RS232C specification. The signals are received
and transmitted by a 9 pin connector.
Basically 3 lines are enough for exchanging information between computer and printer (one
receive line, one send line, one line for common grounding).
Type RS232C interface
Synchronization Asynchronous
Transmission rate 600 Baud to 19200 Baud
Signal status OFF (log.1) -3 V to -15 V
ON (log. 0) +3 V to +15 V
Connection cable up to 15 m length
Interface connections ITT Cannon connector, series DB-9 S
Transmission protocol XON/XOFF, ENQ/STX, READY/ BUSY,
Robust XON/XOFF, ETX/ ACK, ACK/NAK
Capacity of data buffer 512Byte min. 256KByte max
Connector assignment
Connector no. Direction Printer–PC Signal
3 → TxD
4 → DTR
2 ← RxD
6 ← DSR
7 → RTS
8 ← CTS
5 ⎯ Signal Ground SG
Shield ⎯ Frame Ground FG