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Rev. 1.00
- 11 -
SRP-270
2-2-1 Serial Interface (RS-232C)
Interface Connector
Drawer kick-out
connector
Power supply
connector
RS-232 Ver.2ON
※ When the Dip Switch is “ON” on the Serial Interface Board,
DTR and RTS are connected each other.
(Shield.G)
(S.GND) (S.GND) (S.GND) (S.GND)
(Shield.G) (Shield.G) (Shield.G)
Host Side
(25Р)
Host Side
(9Р)
Printer Side
(25Р)
Printer Side
(25Р)
Pin No. Signal name Direction Function
1 FG - Frame Ground
2 TxD Output Transmit Data
3 RxD Input Receive Data
4 RTS Output Ready To Send
5 CTS Input Clear To Send
6 DSR Input Data Set Ready
7 SG - Signal Ground
20 DTR Output Data Terminal Ready