Installation guide

3-13
Cisco 6260 Hardware Installation Guide
OL-2365-02
Chapter 3 Installing a Cisco 6260 with a POTS Splitter Configuration
Installation Procedures
Step 10 After connecting the battery return wire to the external power source, insert the other end into the
receptacle labeled + (positive) on the terminal block of the first PEM, as shown in Figure 3-8. The
stripped part of the wire must be fully inserted so that no bare wire is exposed. Using the screwdriver
and a clockwise motion, tighten the terminal screw. Gently tug on the wire to ensure that it is firmly in
place.
Figure 3-8 Connecting Power to the Terminal Block
Step 11
After connecting the power lead to the external –48V power source, insert the other end of the wire
into the receptacle labeled – (negative) on the terminal block of the first PEM, as shown in Figure 3-8.
The stripped part of the wire must be fully inserted so that no bare wire is exposed. Using the
screwdriver and a clockwise motion, tighten the terminal screw. Gently tug on the wire to ensure that it
is firmly in place.
Step 12 If you are connecting a second power source, repeat Step 10 and Step 11 to wire it to the second PEM.
Note Be sure that the chassis is connected to earth ground as described in the “Ground the
Cisco 6260” section on page 3-7. The Cisco 6260 requires two or three ground connections, one
to the side of the chassis and one to each PEM.
Step 13 Repeat Step 2 through Step 12 for each Cisco 6260 chassis, as necessary.
Warning Do not yet power up the system.
3.2.11 Connect the Alarm and BITS Clock Contacts
Note Connecting the alarm and BITS clock contacts are optional procedures.
Complete the following steps to connect the external alarm and BITS clock contacts:
Step 1 Connect the external alarm device and BITS clock to the wire-wrap pins on the I/O module at the top of
the chassis.
a. Measure one strand of twisted-pair wire (24 AWG industry standard T1/E1 cable) long enough to
connect to the appropriate pin.
CAUTION: USE C
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CAUTION: TERMINALS MAY BE ENERGIZED, TURN OFF POWER SOURCE CIRCUIT
BREAKER AND REMOVE POWER SUPPLY BEFORE ACCESSING TERMINALS.
INPUT OK
OUT FAIL
FAN TRAY 1
FANTRAY 2
26691
Negative connection (–)
Positive connection (+)
Ground connection ( )