CITIZEN 17/38
5. Serial Interface
5-1 Specifications
1) Synchronism : Asynchronous
2) Baud rate : 1200, 2400, 4800, 9600 BPS
(Selected by user)
3) Composition of one word : Start bit : 1 bit
: Data bit : 7 or 8 bit
(selected by user)
: Parity bit : Odd, even or parity
(selected by user)
: Stop bit : 1 bit or more.
4) Signal polarity : RS-232C : Mark = Logic “1”
(-3V to -12V)
: Space = Logic “0”
(+3V to +12V)
4) Receiving Control (DTR signal)
: RS-232C : Mark = Data transfer not possible
: Space = Data transfer possible
5-2 Connector Pin Assignment
Pin No. Signal Direction Function RS-232C
Name Host / Printer
1 FG Safety Ground
3 RD
→
Received Data
¡
7 SG Signal Ground
14 FAULT
←
Printer ALARM Signal
¡
20 DTR
←
Printer BUSY Signal
¡
Notes: 1. The signal for RS-232C use are based on EIA RS-232C level.
2. Please always maintain the “Mark state”, when received data is not being transferred.
3.Compatible connector (D-Sub connector)
Printer side: Equivalent to AMPHENOL 17-13250
Cable side: Equivalent to AMPHENOL 17-23250
