Cisco Systems CHAS-7K, MAS-7507, MAS-7K, CHAS-7507 manual DC-Input Power Supply Cable Connections

Moving System Components

Step 13 To secure the AC-input cable in the power supply AC receptacle, push up the cable retention clip up until it snaps into place around the connector.

To secure the DC-input cable to the power supply, attach the three leads to the terminal block, and then attach two nylon cable ties around the DC-input cable and the bracket near the terminal block. (See Figure 11.) Color code depends on your DC source.

Warning When stranded wiring is required, use approved wiring terminations, such as closed-loop or spade-type with upturned lugs. These terminations should be the appropriate size for the wires and should clamp both the insulation and conductor. (For translations of this safety warning, refer to the section “DC Power Supply Warning” on page 44.)

Warning The illustration shows the DC power supply terminal block. Wire the DC power supply using the appropriate lugs at the wiring end, as illustrated. The proper wiring sequence is ground to ground, positive to positive (line to L), and negative to negative (neutral to N). Note that the ground wire should always be connected first and disconnected last. (For translations of this safety warning, refer to the section “DC Power Supply Wiring Warning” on page 45.)

Step 14 Place the terminal block cover over the terminal block and secure it with the two captive installation screws. (See Figure 11.)

Figure 11 DC-Input Power Supply Cable Connections

DO NOT SHIP WITH POWER SUPPLY

INSTALLED

OUT

INPUTFAIL

POWER

INPUT VOLTAGE : 40-72 V=

INPUT CURRENT : 24-13A

FASTENER TO BE FULLY ENGAGED BEFORE OPERATING POWER SUPPLY

Captive installation screw

Power leads attached to terminal block

( ) negative ( ) positive () ground

Nylon ties on cable and metal bracket

H2530

Step 15 Connect the opposite end of each power cable to an appropriate power source.

Caution Do not turn on any power supplies until you are ready to power up the system. The interlock switch that locks the power supply in the slot also turns on the system power.

Step 16 Proceed to the section “Verifying the Installation” on page 24 to apply power and check the installation.

Cisco 7000 and Cisco 7507 Chassis Replacement Instructions 23