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Installation Procedures
Step 2
Verify that the power connections are made correctly, as described in the
Connections" section on page
Step 3
Check the polarity of the –48 VDC connections to each chassis by attaching a voltmeter with the minus
lead on –48RTN and the plus lead on –48V_A or –48V_B. Ensure that the meter reads between
–40.5 VDC and –75 VDC. If your voltmeter shows a positive voltage, check to ensure that the meter
leads are not reversed. If the voltmeter shows a negative voltage that is out of the –40.5 VDC to –75 VDC
range, check the power supply for failure or check for a blown fuse in the fuse and alarm panel.
Turn on power to the DC circuit.
Step 4
Use a voltmeter to check the voltage at the terminal block. Connect the voltmeter positive contact to the
Step 5
positive (+) terminal on the Cisco 6260 terminal block. Connect the voltmeter negative contact to the
negative (–) terminal on the Cisco 6260 terminal block. If the power is wired correctly, you will see a
reading of – 48V on the voltmeter.
Step 6
At the front of the chassis, switch the circuit breakers on both PEMs to the ON (1) position.
Step 7
Repeat
4.2.10 Verify Fan Tray Operation
Verify that the fan trays are operational by checking the fan tray LEDs, located on the PEMs that are
installed beneath the fan trays. If the LED is
•
•
The fans in both fan trays must run continuously. The system might suffer thermal damage if the fans in
Caution
either tray stop for more than 5 minutes.
4.2.11 Connect the Cisco 6260 System to the Network
The following sections provide instructions for making E3, E1, and OC-3c network connections from
the Cisco 6260 system.
4.2.11.1 E3 Network Connection
The E3 network connection is made from E3 I/O module. Complete the following steps to connect the
E3 I/O module to the network.
We recommend that you label each data cable at both ends to identify its destination.
Tip
Step 1
Verify that you have both a DS3/2DS3 NI-2 card and an E3 I/O module installed in the Cisco 6260
chassis.
Cisco 6260 Hardware Installation Guide
4-14
Step 1
through
Step 6
for each Cisco 6260 chassis, as necessary.
Green—The fan is operational.
Not green—The fan is not operational and the fan tray may be in alarm mode. See
"Troubleshooting,"
for corrective action.
Chapter 4
Installing a Cisco 6260 Without a POTS Splitter Configuration
4-9.
"Attach Cisco 6260 Power
Chapter 5,
OL-2365-02
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