Mgx 8850 And Mgx 8250 Chassis; Figure 1-8 Available Chassis Slots For Vism Cards In The Mgx 8850 And Mgx 8250-Front View - Cisco Voice Interworking Services (VISM) Installation And Configuration Manual

Installing VISM Hardware and Software
The VISM-PR card can be used with the following Processor Module cards:
•
•
•
You must install an additional fan tray spacer at the bottom of your MGX 8000 Series switch chassis
directly above the intake plenum if you are using the VISM-PR card in combination with the PXM45
card. Refer to the Cisco MGX 8850 Hardware Installation Guide, Release 3 for step-by-step instructions
to install a fan tray.

MGX 8850 and MGX 8250 Chassis

VISM and VISM-PR card installation in a Cisco MGX 8850 or MGX 8250 platform consists of installing
one front card and one back card (if not using the bulk distribution feature) in either the upper or lower
shelf of the chassis. You can use slots 1 to 6, 9 to 14, 17 to 22, and 25 to 30 to install VISM cards (see
Figure
Figure 1-8
U pper
S helf
L ower
Sh elf
If you use all the available slots, you can configure the MGX 8850 and MGX 8250 with up to 24
Note
VISM cards. However, the two lower shelf cellbuses can each sustain a bandwidth of one
OC-3/STM-1 link. This bandwidth limits the number of E1 ports on the lower shelf, when using the
G.711 codec, to 78, which limits the number of VISM cards to 10.
Cisco VISM Installation and Configuration Guide
1-14
PXM1
PXM1E
PXM45
1-8).
Available Chassis Slots for VISM Cards in the MGX 8850 and MGX 8250—Front View
Upper She l f Slots
1 2 3 4 5 6 7
VISM VISM VISM VISM VISM VISM
VISM VISM VISM VISM VISM VISM VISM
1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2
Lower Shelf Slots
Chapter 1
8 9 10 11 12 13 14 15 16
VISM VISM VISM VISM VISM VISM
VISM VISM VISM VISM VISM VISM VISM
Release 3.0, Part Number OL-2521-01 Rev. D0, June 2004
Overview of the VISM and VISM-PR Cards