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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.2ON
※ 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)