Appendix 5. Serial Interface - Citizen CBM-1000 User Manual

APPENDIX 5. SERIAL INTERFACE

1 Specifications
(1) Synchronizing system:
(2) Baud rate :
(3) Configuration of one word
Start bit:
Data bits:
Parity bit:
Stop bit:
Transmission control:
2 Connector Pin Assignments
Host side
D-Sub 9 pin (Female)
Pin No.
Case
2
3
8
4
5
6
3. Connector Pin Configuration
NO. Signal name
1 FG
2 TD
3 RD
4 RTS
6 DSR
7 GND
20 DTR
25 INIT
Applicable connectors (D-Sub connectors)
Printer side:
Cable side:
CAUTION
• Signals for RS-232C are specified based on EIA RS-232C.
• While data is not being transferred, be sure to maintain the received data in a mark state.
Asynchronous
4800, 9600, 19200 or 38400 bps (User selectable)
1 bit
7 or 8 bits (User selectable)
Odd, even, or none (User selectable)
1 bit or more
DTR/DSR or XON/XOFF control (User selectable)
Signal name
FG
RXD
TXD
CTS
DTR
GND
DSR
I/O Function
Grounding for safety (Case ground)
Output Transferred data
Input Received data
Output Same as DTR
Input Data set ready or reset (Selected with the DIP switches)
Ground for signals (Common ground on the circuit)
Output Printer Busy signal
Input Reset (Selected with the DIP switches)
17LE-13250 (DDK or equivalent)
17JE-23250 (DDK or equivalent)
— v —
Printer side
D-Sub 25 pin (Male)
Pin No. Signal name
1 FG
2 TXD
3 RXD
4 RTS
6 DSR
7 GND
20 DTR