
1 - 37
+RxD
+TxD
+DSR
+DTR
1
2
3
4
5
SG
7
-RxD
15
-TxD
16
-DSR
17
-DTR
18
20
21
Signal
FG
+SD
-SD
+RD
-RD
SG
ZM-
**
+ZM-1TC
RD terminal resistance
(ON)
RD/SD terminal resistance
(ON)
RD/SD terminal resistance
(ON)
Signal
FG
+SD
-SD
+RD
-RD
SG
ZM-
**
+ZM-1TC ZM-
**
+ZM-1TC
Signal
ZM-1MD2
ZM-Port
FG
+SD
-SD
+RD
-RD
SG
* Use twist shielded cable.
SignalPin No.
MB-CPUQT
Signal
FG
+SD
-SD
+RD
-RD
SG
ZM-
**
+ZM-1TC
RD terminal resistance
(ON)
RD/SD terminal resistance
(ON)
Signal
FG
+RxD
-RxD
+TxD
-TxD
SG
Link module
Signal
FG
+SD
-SD
+RD
-RD
SG
ZM-
**
+ZM-1TC
RD/SD terminal resistance
(ON)
Signal
FG
+SD
-SD
+RD
-RD
SG
ZM-
**
+ZM-1TC
* Use twist shielded cable.
1 Connection
Use the terminal converter (ZM-1TC), the optional equipment made by Sharp Corporation for RS-485
connection.
• When the ZM-1TC terminal converter is used.
Set the dip switch (SW1) of ZM-1TC as 2-wire connection.
When multiple ZM-** are connected directly to MITSUBISHI’s QCPU port
The optional equipment, ZM-1MD2 is required. Also, the use of the optional cable, MB-CPUQT which is
to connect ZM-1TC on ZM-** side to ZM-1MD2 on QCPU port side, is recommended.
• When the ZM-1TC terminal converter is used.
Set the dip switch (SW1) of ZM-1TC as 2-wire connection.
• When the ZM-1TC terminal converter is not used.
Short-circuit between +RD and +SD, and -RD and -SD.
• When the ZM-1TC terminal converter is not used.
Short-circuit between +RD and +SD, and -RD and -SD.
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