V7122 Gateway User Guide
49
Figure 16
RS-232 Cable Wiring
Connecting the Power Supply
Connect the gateway to the power supply using one of the following methods:
Connecting the AC Power Supply
When using a single AC power cable:
Attach one end of the supplied 100/240 VAC power cable to the rear AC socket and
connect the other end to the correct earthed AC power supply.
When using a dual AC power cable:
Attach one end of the supplied 100/240 VAC power cables to the rear AC sockets and
connect the other end to a separate earthed mains circuits (for power source redundancy).
For the dual AC power supply, note the following:
•
The LED on the left side of the chassis is only connected when the dual AC is
used. It is not relevant to the single AC power connection.
•
If only a single socket is connected to the AC power, (while the other plug is
left unconnected) the chassis’ LED (on the left side) is lit Red, indicating that
one of the dual power inlets is disconnected.
•
When both the AC power cables are connected, one of the plugs can be
disconnected under power without affecting operation, in which case the
chassis’ left LED is lit Red.
•
UPS can be connected to either (or both) of the AC connections.
•
The dual AC connections operate in a 1 + 1 configuration and provide load-
sharing redundancy.
Each of the dual power cables can be connected to different AC power phases.
Connecting the DC Power Supply
To connect the gateway to a DC power supply use one of these two options:
DC Terminal block with a screw connection type.
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