CHAPTER
1-1
Cisco VISM Installation and Configuration Guide
Release 3.0, Part Number OL-2521-01 Rev. D0, June 2004
1
Overview of the VISM and VISM-PR Cards
This chapter provides a general introduction to VISM and VISM-PR and describes the hardware and
software modules, and installation procedures. The following topics are described:
•“VISM and VISM-PR Card Types” section on page 1-1
•“VISM and VISM-PR Card Physical Characteristics” section on page 1-5
•“VISM and VISM-PR Card Features” section on page 1-6
•“Installing VISM Hardware and Software” section on page1-13
•“Software Upgrades” section on page 1-20
Note The term VISM is used to refer to the product software—either for the VISM card or for the
VISM-PR card. The terms VISM and VISM-PR are used when discussing hardware onl y.
The VISM card, in combination with a Cisco MGX 8000 Series platform, enables te lepho ne calls on
conventional time-division multiplexed (TDM) voice circuits to be transported over an Asynchronous
Transfer Mode (ATM) packet-switched and VoIP networks. The VISM card is a single height card
designed to operate in the following platforms:
•Cisco MGX 8850 Release 1, wide area switch
•Cisco MGX 8250, edge concentrator
•Cisco MGX 8230, edge concentrator
Note VISM is not supported on the Cisco MGX 8260 switch.

VISM and VISM-PR Card Types

VISM and VISM-PR cards are installed in Cisco MGX 8000 Series swit ches as front ca rd s and the ir
associated back cards—card sets. There are two types of VI SM fr ont card s (see Figure 1-1):
•AX-VISM-8T1—Supports up to eight T1 lines carrying digitized voice
•AX-VISM-8E1—Supports up to eight E1 lines carrying digitized voice