Cisco CISCO2650 - 2650 Router Hardware Installation Manual page 158

IP Communications High-Density Digital Voice or Fax Network Module
It is normal to feel some resistance, but do not use excessive force on the PVDM2 module, and do not
Caution
touch the surface components.
Repeat
Step 5
NM-HDV2 Network Module LEDs
IP communications high-density digital voice or fax (NM-HDV2) network modules have an enable (EN)
LED, and four LEDs for the PVDM2 modules, numbered 0 through 3. The enable LED indicates that the
module has passed its self-tests and is available to the router. The PVDM 0 through PVDM 3 LEDs
indicate the current operating condition of the PVDM2 modules installed on the card. (See
If the PVDM LEDs are not green after initial installation and configuration, check that the PVDM2
modules are properly seated in their slots.
Figure 8-21 NM-HDV2 Network Module LEDs
NM-HDV2
The NM-HDV2-1T1/E1 and NM-HDV2-2T1/E1 network modules have LEDs monitoring the alarm
(AL), loopback (LP), and carrier detection (CD) conditions of the built-in T1/E1 ports. (See
Figure
Figure 8-22 NM-HDV2-2T1/E1 LEDs
NM-HDV2-2T1/E1
Cisco Network Modules Hardware Installation Guide
8-16
Step 2 through Step 4 for each PVDM2 module.
PVDM 3 PVDM 2
PVDM 2
LED
PVDM 3
LED
8-22.)
AL
LP
PVDM 3 PVDM 2
CD
CTRLR T1/E1 1
PVDM 2
LED
Alarm,
loopback, and
PVDM 3
carrier detect
LED
LEDs
Chapter 8 Connecting Voice Network Modules
See Manual before Installation.
V0
PVDM 1 PVDM 0
PVDM 1
LED
PVDM 0
LED
See Manual before Installation.
V0
AL
LP
PVDM 1 PVDM 0
CD
CTRLR T1/E1 0
PVDM 1
LED
Alarm,
PVDM 0
loopback, and
LED
carrier detect
LEDs
Figure 8-21.)
EN
ENABLE
LED
EN
ENABLE
LED
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