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Wiring Guidelines
Wire Size - Each terminal can accept:
•
one 12-24 AWG (2.5-0.2 mm
•
two 16 AWG (1.3 mm
•
three 18 AWG (0.96 mm
Wire stripping length - 1/4" (6 mm) typical, 9/32" (7 mm) maximum.
Terminal and ground screw torque:
•
connector terminals - 4.4-5.3 in. lbs (0.5-0.6 N-m)
•
green ground screw - 20 in. lbs (2.26 N-m)
Making Connections to the Direct Entry Terminals
The plug-in portions of the connectors are supplied in a kit that accompanies the case. Terminal functions
and numbers have not changed. For example, Station/Transmitter Common is terminal 6 on the side entry
and direct entry connectors.
For each terminal:
1. Refer to the body of the User's Manual, particularly Section 6 Installation, for details concerning the
connections to the terminal to be wired.
2. Refer to the figure on the previous page and determine the location of the target terminal.
3. Loosen the captive screw adjacent to the target terminal.
4. Strip the end of a wire 1/4" (6 mm). Component leads should be insulated with sleeving leaving a
bare lead of 1/4" (6 mm).
5. Insert the wire or component lead into the square terminal opening.
6. Tighten the adjacent screw to 4.4-5.3 in. lbs (0.5-0.6 N-m) to clamp the wire or lead. Do not over
tighten.
7. When the connector is completely wired, plug it into the mating connector on the back of the case.
The connectors are keyed. Gently tighten the screw at each end of the connector. Do not over tighten.
8. The Ethernet connector accepts a standard 8-wire Ethernet cable. Insert the cable-mounted connector
until the locking tab engages.
9. When all wiring is complete, check each connection to be sure that the proper wire(s) or component is
connected and that the inserted leads are securely clamped.
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WARNING
Hazardous voltage can cause death or serious injury.
Remove power from all wires and terminals before
working on this equipment.
3
UMA353-1-6
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