8-13
Cisco Network Modules Hardware Installation Guide
OL-2485-20
Chapter 8 Connecting Voice Network Modules
IP Communications High-Density Digital Voice or Fax Network Module
Installing PVDM2 Modules
The NM-HDV2 network modules contain four 80-pin SIMM sockets for PVDM2 modules, numbered 0
through 3. (See
Figure 8-17
.) Each socket can be filled with a single 80-pin PVDM2 module.
Figure 8-17 PVDM2 Module Slot Locations
PVDM2 Module Orientation
PVDM2 modules are manufactured with a polarization notch to ensure proper orientation, and alignment
holes to ensure proper positioning.
Figure 8-18
shows the polarization notch and alignment holes on a
PVDM2 module. PVDM2 modules are installed with the connector edge down, the polarization notch
near the back of the chassis.
Caution
To avoid damaging ESD-sensitive components, observe all ESD precautions. To avoid damaging the
NM-HDV2 network module, avoid using excessive force when you remove or replace PVDM2 modules.
Figure 8-18 PVDM2 Module Orientation
95199
3
2
1
0
Connector edge
Polarization notch
95200
Alignment notch
Alignment holes