Installation guide

6-20
Cisco 6260 Hardware Installation Guide
OL-2365-02
Chapter 6 Upgrading and Maintaining the Cisco 6260 System
Installing and Replacing Hardware
Figure 6-7 I/O Interface Module Retaining Screws
Step 6
Use a Phillips-head screwdriver to remove the I/O module retaining screws.
Step 7 Remove the I/O module from the chassis by carefully pulling the module horizontally away from
the chassis.
See the “Installing an I/O Module” section on page 6-18 for I/O module installation procedures.
6.3.6 PEM
The following sections describe how to install or remove a PEM.
Caution Proper ESD protection is required whenever you handle Cisco DSLAM equipment. Installation
and maintenance personnel should be properly grounded by means of ground straps to eliminate the risk
of ESD damage to the equipment. Modules are subject to ESD damage whenever they are removed from
the chassis.
6.3.6.1 Installing the PEM
Complete the following steps to install or replace the DC PEM in the Cisco 6260 chassis.
Note Connect each Cisco 6260 PEM to a separate fuse. Do not power the components in the rack by
chaining them together.
Step 1 Connect a grounding strap to the ESD grounding jack that is located on the top right of the Cisco 6260
card cage.
Step 2 Verify that the circuit breaker on the PEM is turned to the OFF (0) position, and that the PEM is
disconnected from the fuse and alarm panel.
Step 3 Verify that the fan tray above the PEM you wish to install is removed.
Step 4 Horizontally align the module edge with the module guides at the right and left of the slot in the
Cisco 6260.
RX
TX
P1
RX
TX
P2
RX
TX
P3
26378
Retaining screw
Retaining screw
PEM 1/PEM 2
AUD_CRIT/AUD_MAJ
AUD_MIN/VIS_CRIT
VIS_MAJ/VIS_MIN
STAT_ALARMS
BUS_A/BITS_B
60V
0.5 A MAX
LOGIC
INPUTS
BITS
CLOCK
RX
TX
P1
RX
TX
P2
RX
TX
P3
PEM 1/PEM 2
AUD_CRIT/AUD_MAJ
AUD_MIN/VIS_CRIT
VIS_MAJ/VIS_MIN
STAT_ALARMS
BUS_A/BITS_B
60V
0.5 A MAX
LOGIC
INPUTS
BITS
CLOCK