ADCP-80-524 • Issue 1 • November 2001

WRAP TERMINAL BLOCK PINS USING #22 TO #26 AWG COPPER WIRE WITH INSULATION STRIPPED BACK.

CONNECT TO

CONNECT TO

APPROPRIATE

APPROPRIATE

TERMINALS

TERMINALS

OF ALARMS

OF ALARMS

16161-B

Figure 21. Wire Wrap Alarm Contact Connection

4.10 Input Power Connectors

Note: Before connecting the input or output power wires, measure the resistance at each bus input connector as specified in Subsection 5.2, Resistance Test.

Connect the input power wires to the input power connectors labeled “BATT” and connect the return wires to the return connectors labeled “RTN” for both buses in the fuse panel as shown in Figure 22. Connect input power to the appropriate power sources in accordance with applicable local electrical codes and/or National Electrical Codes but do not apply power to the panel until directed to do so.

Caution: Connect only the input voltage wire [the wire labeled BATTERY or BATT, or labeled with the negative (–) voltage polarity and/or the voltage value] to the connector on the fuse panel labeled BATT (battery). Connect only the input return wire [the wire labeled RTN, RETURN, or BATTERY GROUND, or labeled with the positive (+) voltage polarity] to the connector on the fuse panel labeled RTN (return).

Caution: Caution should be taken to not reverse input wires to the fuse panel. Within the fuse panel, the internal battery (negative voltage) wiring is protected and the internal return wiring is not protected by fuses. If the wires are reversed, voltage could be present on the fuse panel chassis and current could flow through the unprotected return wiring in the fuse panel. This condition can cause damage to equipment in the frame in which the fuse panel is installed and to equipment in adjacent frames

•Compression lug connectors: Use the included 2-hole lugs with #6 AWG copper wire (insulation stripped back) or optional 2-hole lugs available as accessories with appropriate AWG copper wire. Tighten the nuts to approximately 16 pound-force inches (1.8 Newton meters).

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© 2001, ADC Telecommunications, Inc.