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Cisco MGX 8800/8900 Series Hardware Installation Guide
Releases 2 - 5.2, Part Number OL-4545-01, Rev. H0, May 2006
Chapter 2 Illustrated Card List for MGX Switches and the MGX 8880 Media Gateway
Front Cards
The PXM1E is part of a card set that consists of a PXM1E, a user interface back card, and an NNI/UNI
port back card. The switch can support up to two card sets.
One PXM1E user interface back card (PXM-UI-S3 or PXM-UI-S3/B) provides management interfaces
for configuring the switch, using external clocks, and triggering external alarms. The user interface back
card is installed in the top bay of the switch (when the switch is viewed from the rear) behind the
PXM1E.
Note Only the PXM-UI-S3 is supported in Release 3.0.00. The PXM-UI-S3/B is supported in Release 3.0.10
and higher.
One PXM1E NNI/UNI port back card serves as either an NNI or a UNI and is installed in the lower rear
bay of the switch (when the switch is viewed from the rear) behind the PXM1E.
The PXM1E operates with the following module types:
• AUSM, page 2-10
• CESM, page 2-23
• FRSM, page 2-27
• RPM-PR, page 2-62
• SRM, SRME, and SRME/B: SRM, page 2-68
• VISM-PR, page 2-77
Note The PXM1E does not contain a crossbar switch; therefore, it cannot operate with broadband service
modules such as the AXSM, FRSM-12-T3E3, and RPM-XF.
For specific module support in the MGX 8850 (PXM1E), MGX 8850/B (PXM1E), MGX 8830, or MGX
8830/B switch, see Table 1-3.
The PXM1E does not function as a feeder to any product.
The PXM1E supports the following features:
• Both UNI and NNI protocols
• Up to 4000 logical ports in the switch
• Standby switchover from active in approximately 250 milliseconds
• PNNI reroute time of approximately 100 calls per second
Table 2-22 provides information about each PXM1E card, interface, and corresponding back card.
Caution The PXM1E-4-155 does not need an APS connector to support APS line redundancy. However, it is
recommended that you install the PXM1E-4-155 in an APS connector to support a seamless upgrade to
the PXM1E-8-155.
The procedure to upgrade a PXM1E-4-155 card to a PXM1E-8-155 card is described in the Cisco MGX
8800/8900 Series Configuration Guide, Release 5.2. The “Obtaining Documentation” section explains
how to find these documents online.