Rev. 1.00
- 12 -
SRP-270
2-2-2 Serial Interface (RS-485)
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.
Host Side
Printer Side
Pin No.
Signal Name
Direction
Function
1 FGND
-
Frame
Ground
2 SD2 Output
3 SD1 Output
Send Data
4 RD2 Input
5 RD1 Input
Receive Data
7 SGND
-
Signal
Ground
8
9
DR2
DR1
Output
Same as DTR(RS-232)
10
11
CS2
CS1
Input
Same as DSR(RS-232)
