5-4 Relay Control
Connections
An external relay circuit is connected to the power supply via the 9-pin D-SUB connector
located on the rear panel. Table 5-1 contains pinouts and connections for this connector. The
illustration provides terminal identification for the conductors of the plug.
51
96
4
3
2
8
7
Figure 5-3
Relay connector (9-pin D-sub)
Table 5-1
Relay pinouts (for Figure 5-3)
Pin Connection
1 Relay 4
2 Relay 3
3 Ground
4 Relay 2
5 Relay 1
6 Ground
7 Suppression diodes
8 +5 VDC
9 Ground
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