ADC 70 - Manual (Page 27)

ADCP-80-524 • Issue 1 • November 2001
Page 27
© 2001, ADC Telecommunications, Inc.
Figure 21. Wire Wrap Alarm Contact Connection
4.10 Input Power Connectors
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.
• 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).
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
.
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
16161-B
CONNECT TO
APPROPRIATE
TERMINALS
OF ALARMS
CONNECT TO
APPROPRIATE
TERMINALS
OF ALARMS
WRAP TERMINAL BLOCK PINS USING #22 TO #26 AWG COPPER WIRE WITH INSULATION STRIPPED BACK.