23
WARNING
Safety measures should be taken before connecting the power cable
.
Turn off the
power before connecting modules or wires. The correct power supply voltage is
listed on the product label. Check the voltage of your power source to make sure
that you are using the correct voltage. DO NOT use a voltage greater than what is
specified on the product label. Calculate the maximum possible current in each
power wire and common wire. Observe all electrical codes dictating the maximum
current allowable for each wire size. If current exceeds the maximum rating, the
wiring can overheat causing serious damage to your equipment.
Please Read and Follow these Guidelines:
•
Use separate paths to route wiring for power and devices. If power wiring and device
wiring paths must cross, make sure the wires are perpendicular at the intersection point.
NOTE:
Do not run signal or communications wiring and power wiring through the same
wire conduit. To avoid interference, wires with different signal characteristics should be
routed separately.
•
You can use the type of signal transmitted through a wire to determine which wires should
be kept separate. The rule of thumb is that wiring that shares similar electrical
characteristics can be bundled together
•
You should separate input wiring from output wiring
•
We advise that you label the wiring to all devices in the system.
Wiring the Alarm Contact:
The Alarm Contact consists of the two last contacts of the terminal block on switch’s top panel.
ALM:
The two last contacts of the 6-contact terminal block connector are used to detect both
power faults and port faults. The two wires attached to the ALM contacts form an open circuit
when:
1. The Switch has lost power from one of the DC power inputs.
OR
2. One of the ports for which the corresponding PORT ALARM DIP Switch is set to ON is not
properly connected.
If neither of these two conditions is satisfied, the Fault circuit will be closed.
WARNING
Use
copper
conductors only,
60/75˚C
(140/167°F)
, tighten to
0.56 N•m (5
lb•in).
The wire gauge for the terminal block should range between
12~18 AWG
.
Powering On the Unit
The Switch accepts the power input voltage from 12~60VDC.
Insert the power cables into the terminal block located on the top of the device.
Summary of Contents for NGI-M08C4-L2
Page 1: ......
Page 285: ...285 9 2 2 Web Configurations...
