Cisco IR1101 Hardware Installation Manual page 74

Wiring the DC Power
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IR1101 Industrial Integrated Services Router Hardware Installation Guide
68
Locate the power and alarm
connector on the router front panel.
NOTE: Your connector may not
have the labels V RT A A.
In the labeled connector, the pins
are:
V—Positive DC power connection
RT— Return DC power connection
A— Alarm Common
A— Alarm Input
Identify the connector positive and
return DC power connections. The
connections left to right are:
• 1—Positive DC power
connection
• 2—Return DC power
connection
• 3—Alarm Common
• 4—Alarm Input
Measure two strands of twisted-pair
copper wire (18-to-20 AWG) long
enough to connect to the DC power
source.
Using an 18-gauge wire-stripping
tool, strip each of the two twisted
pair wires coming from each
DC-input power source to 0.25 inch
(6.3 mm) ± 0.02 inch (0.5 mm). Do
not strip more than 0.27 inch (6.8
mm) of insulation from the wire.
Stripping more than the
recommended amount of wire can
leave exposed wire from the power
connector after installation.
Remove the two captive screws that
attach the power and alarm
connector to the router, and remove
the connector.
Connecting the Router