Cisco 1760 - VPN Bundle Router Hardware Installation Manual page 90

Installing a PVDM
Table C-1
PVDM
PVDM-256K-4
PVDM-256K-8
PVDM-256K-12
PVDM-256K-16
PVDM-256K-20
The Cisco 1760 router has two PVDM slots. Any of the PVDMs can occupy either
slot. The total number of DSPs provided by one or two PVDMs installed in those
slots must be greater than or equal to the number of DSPs required by the number
and type of VICs installed, as described in
For example, if you have one PVDM (a single DSP), and you want to increase the
number of DSPs to 3, you can either add a PVDM-256K-8 in the second slot or
replace the PVDM-256K-4 with a PVDM-256K-12.
Follow these steps to install a PVDM on the router motherboard.
During this procedure, wear grounding wrist straps to avoid ESD damage to the
Warning
router. Do not directly touch the backplane with your hand or any metal tool, or
you could shock yourself.
Locate the PVDM slots on the motherboard. (See
Step 1
Remove any existing PVDM modules by pulling the PVDM snaps away from the
Step 2
module. (See
Cisco 1760 Modular Access Router Hardware Installation Guide
C-8
Appendix C Installing and Upgrading Memory and Packet Voice Data Modules
PVDM and VIC Combinations
Number
of DSPs Supported VIC Combinations
1 1 analog VIC
2 Up to 2 analog VICs or
1 voice-BRI VIC
3 Up to 3 analog VICs or
1 analog VIC and 1 voice-BRI VIC
4 Up to 4 analog VICs or
Up to 2 voice-BRI VICs or
Up to 2 analog VICs and 1 voice-BRI VIC
5 Up to 4 analog VICs or
Up to 2 voice-BRI VICs or
Up to 3 analog VICs and 1 voice-BRI VIC or
1 analog VIC and up to 2 voice-BRI VICs
Figure C-6.)
Table C-1.
Figure C-3.)
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