The RS232 is used only for connecting the power supply to the controller PC. For linking several power
supplies, refer to par. 5.3.4.
It is possible to link up to 31 ZUP units, using rear panel In/Out connectors and linking cables as shown
in Fig. 5-1. The first unit communicates with the PC via RS232 as shown in Figs. 5-3 and 5-4. The other
units are linked by RS485 interface. Construction of the linking cable is shown in Fig. 5-5.
5.3.3 RS232 cable ( PC to ZUP ) - NC403 , NC401
5.3.4 Linking power supplies - NC405
Fig. 5-3: RS232 cable with
DB-25 connector - NC403
Fig. 5-4: RS232 cable
with
DB-9 connector - NC401.
Fig. 5-5: ZUP units linking cable.
EIA/TIA-568A SHIELDED CONNECTORS
5
2
4
6
8
5
2
4
6
8
PIN NO.
HOUSING
HOUSING
PIN NO.
NAME
NAME
SHIELD
SG
TXD
TXD
RXD
RXD
SHIELD
SG
TXD
TXD
RXD
RXD
8 PIN CONNECTOR (IN) 8 PIN CONNECTOR (OUT) REMARKS
2
3
5
7
3
5
PIN NO.
HOUSING
HOUSING
PIN NO.
NAME
NAME
SHIELD
RX
TX
SG
SHIELD
TX
RX
SG
9 PIN CONNECTOR
8 PIN CONNECTOR
REMARKS
TWISTED
PAIR
2
3
7
1
3
7
5
PIN NO.
PIN NO.
NAME
NAME
SHIELD
TX
RX
SG
SHIELD
RX
TX
SG
25 PIN CONNECTOR
8 PIN CONNECTOR
REMARKS
TWISTED
PAIR
8
8
1
8
1
1
1
8
5
1
13
1
-
+
+
+
+
-
-
-
40