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.2
ON
※
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
(25
Р
)
Host Side
(9
Р
)
Printer Side
(25
Р
)
Printer Side
(25
Р
)
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
