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
3
RxD
4
RTS
5
CTS
(JW2 = closed)
6
DSR
(JW3 = closed)
7
SG
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
