Pin No. Signal Jumper Setting Function
1 FG JW1 = open* SG and FG not connected
JW1 = closed SG and FG connected
2 TxD JW11 = closed; JW12 = open* Connects TxD with pin 2
RDY JW11 = open; JW12 = closed Connects RDY with pin 2
3RxD
4RTS
5 CTS (JW2 = closed)
6 DSR (JW3 = closed)
7SG
10 RDY JW4 = closed* Connects RDY or -RDY with
pin 10
JW4 = open No connection with pin 10
11 RDY JW5 = closed* Connects RDY or -RDY with
pin 11
JW5 = open No connection with pin 11
18 (JW6 = open)
19 RDY JW7 = closed* Connects RDY or -RDY with
pin 19
JW7 = open No connection with pin 19
20 DTR JW8 = closed; JW9 = open* Connects DTR with pin 20
RDY JW8 = open; JW9 = closed Connects RDY or -RDY with
pin 20
25 RDY JW10 = closed Connects RDY or -RDY with
pin 25
JW10 = open* No connection with pin 25
* Factory setting
RDY = +RDY: JW12 = open, JW13 = closed, JW14 = open
RDY = –RDY: JW12 = open, JW13 = open, JW14 = closed
Other jumper combinations are not permissible!
STOP
Serial interface RS232C/V.24
B - 8
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