User`s manual

4-2
Connection to the PG port (support tool connection connector) on a JW-32CUH/H1, JW-33CUH/
H1/H2/H3, JW-21CU/22CU, JW-22CM, or JW-21MN.
(2) RS-422 (n:1 multi-link connection)
The multi-link connection is only supported on a version 5.8 or later of the JW-20CM. (MODE switch [4])
- Set the terminating resistor switch on all intermediate LCD control terminals to OFF. Set the switch on
the LCD control terminals on each end to ON.
- Common all +SD terminals, all +RD terminals, all -SD terminals, and all -RD terminals on the LCD
control terminals and the PC.
- In order to communicate with more than one display terminal, set the communication response speed
to lowest level.
- Be careful when connecting applications that require rapid response by turning on a switch.
Signal name No
+SD 12
-SD 13
+RD 24
-RD 25
FG 1
Signal name No
+RXD 9
-RXD 10
+TXD 3
-TXD 11
FG 1
ZM-**
(CN1/TB1)
Signal
name
+SD
-SD
+RD
-RD
FG
ZM-**
(CN1/TB1)
Signal
name
+SD
-SD
+RD
-RD
FG
ZM-**
(CN1/TB1)
Signal
name
+SD
-SD
+RD
-RD
FG
JW-20CM
Signal
name
No
+RXD 2
-RXD 15
+TXD 3
-TXD 16
FG 1
PG port on a JW series PC
ZM-** (CN1/TB1)