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Cisco MGX 8950 Hardware Installation Guide
Release 3, Part Number 78-14147-02 Rev. A0, November 2002
Chapter 1 Product Overview
System Hardware Components
The following module configurations are supported for the PXM45/B:
• Standalone
• Card set redundancy (Y-cable)
RPM-PR
The RPM-PRs are double-height service modules that provide integrated IP in an ATM platform,
enabling services such as integrated Point-to-Point protocol (PPP).
The RPM-PR
• Provides an ATM interface to the switch and supports up to two port adapters, a four-port Ethernet
(10BASE-T), and one-port Fast Ethernet (unshielded twisted pair [UTP], MMF).
• Has a QED RM7000 processor subsystem that provides over 350 kpps (kilo packets per second) of
throughput for IP packet forwarding.
• Provides integrated IP in an ATM platform.
• Has an attached daughter card that contains the processing intelligence and contains the firmware
that distinguishes the interface, such as OC-12c, OC-3c, T3, E3, and so forth.
When the RPM-PR is combined with one or two back cards, a card set is created. Table 1-8 provides
information about the RPM-PRs, its interfaces, and its corresponding back cards.
Ta b l e 1-8 RPM-PRs, Interfaces, and Supported Back Cards
RPM-PR
Switch
Interface
Supported
Back Card
Ethernet Interfaces
Number of
Ethernet
Interfaces
RPM-PR-256
(256 MB DRAM)
NNI/UNI MMF-FE
1
1. FE = Fast Ethernet
Fast Ethernet, 100BaseFX;
Choice of SC or MII
connector. MII connector
requires external transceiver.
1
RJ45-4E/B Ethernet 10BaseT 4
RJ45-FE Fast Ethernet, 100BaseFX;
Choice of RJ45 or MII
connector. MII connector
requires external transceiver.
1
RPM-PR-512
(512 MB DRAM)
NNI/UNI MMF-FE Fast Ethernet, 100BaseFX;
Choice of SC or MII
connector. MII connector
requires external transceiver.
1
RJ45-4E/B Ethernet 10BaseT 4
RJ45-FE Fast Ethernet, 100BaseFX;
Choice of RJ45 or MII
connector. MII connector
requires external transceiver.
1