Cisco 1760 Hardware Installation Guide - Page 89

Installing a PVDM

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Appendix C Installing and Upgrading Memory and Packet Voice Data Modules Installing a PVDM Figure C-5 Installing a SIMM View from side of card 1. Insert the SIMM into the socket at an angle 45˚ from vertical. 3. The socket guide posts insert through the SIMM holes (on both sides). 4. The locking spring will clip the front side of the SIMM when it is fully installed (on both sides). 2. Push the SIMM down and forward. 65287 Installing a PVDM You can install up to two PVDMs to support enhanced versions of digital signal processors (DSPs). There are five types of PVDMs: • PVDM-256K-4-Supports one DSP • PVDM-256K-8-Supports up to two DSPs • PVDM-256K-12-Supports up to three DSPs • PVDM-256K-16-Supports up the four DSPs • PVDM-256K-20-Supports up to five DSPs Each DSP supports two analog voice ports or one ISDN BRI port. Each analog VIC used with the Cisco 1760 router has two voice ports and requires a single DSP. The 2-port ISDN Voice-BRI requires two DSPs. Table C-1 shows the possible combinations of PVDMs and voice ports for the Cisco 1760 router. 78-13342-03 Cisco 1760 Modular Access Router Hardware Installation Guide C-7

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C-7
Cisco 1760 Modular Access Router Hardware Installation Guide
78-13342-03
Appendix C
Installing and Upgrading Memory and Packet Voice Data Modules
Installing a PVDM
Figure C-5
Installing a SIMM
Installing a PVDM
You can install up to two PVDMs to support enhanced versions of digital signal
processors (DSPs).
There are five types of PVDMs:
•
PVDM-256K-4—Supports one DSP
•
PVDM-256K-8—Supports up to two DSPs
•
PVDM-256K-12—Supports up to three DSPs
•
PVDM-256K-16—Supports up the four DSPs
•
PVDM-256K-20—Supports up to five DSPs
Each DSP supports two analog voice ports or one ISDN BRI port. Each analog
VIC used with the Cisco 1760 router has two voice ports and requires a single
DSP. The 2-port ISDN Voice-BRI requires two DSPs.
Table C-1
shows the
possible combinations of PVDMs and voice ports for the Cisco 1760 router.
65287
1. Insert the SIMM into the socket at an angle 45˚ from vertical.
The socket guide posts insert
through the SIMM holes
(on both sides).
3.
The locking spring will
clip the front side of the SIMM
when it is fully installed
(on both sides).
4.
View from side
of card
2. Push the SIMM down and forward.