Cisco 7301 - Manual (Page 17)

17
Connect DC-Input Power
The color coding of the DC-input power supply leads depends on the color coding of the DC power source at your site. Match
the lead color coding for the DC-input power supply to the lead color coding used at the DC power source.
Warning This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that a Listed and
Certified fuse or circuit breaker no larger than 60 VDC, 15 A is used on all currently-carrying conductors.
Statement 96
Warning Before completing any of the following steps, and to prevent short-circuit or shock hazards, ensure that power is
removed from the DC circuit. To ensure that all power is OFF, locate the circuit breaker on the panel board that
services the DC circuit, switch the circuit breaker to the OFF position, and tape the switch handle of the circuit
breaker in the OFF position. Statement 140
Step 1 Be sure the power switch is in the OFF (O) position.
Step 2 Ensure that no current is flowing through the DC power supply leads. To ensure that all power is OFF, locate the circuit
breaker on the panel board that services the DC circuit, switch the circuit breaker to the OFF position, and tape the
switch handle of the circuit breaker in the OFF position.
Step 3 Using a wire stripper, strip approximately 0.55 inch (14 mm) from the –V and +V leads.
Figure 17 Attaching the Wires to the DC Plug and the DC Plug to the DC Connector
Step 4 To determine which lead to connect to which screw in the DC plug, align the DC plug (1) with the DC connector (4, 5)
in the chassis as shown in the illustration above. Do not insert the plug in the connector. Notice the symbols, + A –,
embossed on the connector (3). Use the symbols and the orientation of the plug to guide you when inserting the leads
into the plug.
Step 5 Loosen the screws in the DC plug (1), insert the +V and –V leads, and tighten the screws.
Step 6 Insert the DC plug (1) into the DC connector (4) in the chassis. Repeat Step 5 and Step 6 if you have a dual DC power
supply (5).
1 DC plug 4 Single DC power supply connector
2 Lead 5 Dual DC power supply connectors
3 + and – embossed on connector
ALARM
LE
COMPACT
FLASH STATUS
B
A
4
1
3
2
80283
ALARM
LE
COMPACT
FLASH STATUS
B
A
5