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Cisco MGX 8800/8900 Hardware Installation Guide, Releases 2 - 5.2

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Cisco MGX 8800/8900 Hardware Installation Guide, Releases 2 - 5.2

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Product Overviews

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Chapter: Product Overviews

Changes to this Document
How this Chapter Is Organized
- Overview of Terms
Overview of Card Slot Assignments, by Chassis
- MPSM Slot Assignments and MPSM Licensing
Cisco MGX 8850 and MGX 8850/B Switches
Cisco MGX 8950 Switch
Cisco MGX 8830 or MGX 8830/B Switch
Cisco MGX 8880 Media Gateway

Product Overviews

Figure 1-1 and Figure 1-2 show the Cisco MGX family switches and the Cisco MGX media gateway, respectively:

•Cisco MGX 8850 or Cisco MGX 8850/B switch

•Cisco MGX 8950 switch

•Cisco MGX 8830 switch, Cisco MGX 8830/B switch

Figure 1-1 Cisco MGX Switch Family

The Cisco MGX 8850 Multiservice Switch is designed for service providers deploying narrowband and/or broadband services. The MGX 8850/B model supports 1:N redundancy.

Both the MGX 8850 and MGX 8850/B support either the PXM45 or PXM1E controller cards. Further, the switches can scale from DS0 to OC-48c/STM-16 and support any combination of the following services:

•Frame relay

•ATM

•Voice over ATM

•Voice over IP

•Circuit emulation

•IP

•Wireless aggregation

•DSL aggregation

•ATM service backbones

The Cisco MGX 8950 ATM multiservice switch scales service provider networks by providing 180 Gbps of redundant switching with 10 Gbps ATM interfaces.

The Cisco MGX 8830 ATM multiservice switch extends a full suite of narrowband interfaces and broadband trunking to remote sites with low density and high service mix requirements. Using PNNI and MPLS, the MGX 8830 provides a flexible network for services evolution. With a switching capacity of up to 1.2 Gbps, the MGX 8830 acts as a standalone switch, offering a full range of service interfaces. The MGX 8850/B model supports all of the same features with 1:N redundancy.

The Cisco MGX 8880 Media Gateway is part of the Cisco IP/MPLS product portfolio that offers service providers the capability to consolidate their core infrastructure and deliver differentiated IP Communications services. With superior density, scalability, and performance, the Cisco MGX 8880 Media Gateway helps service providers to deploy a comprehensive set of voice over IP (VoIP) applications that help lower operational expenses and generate new services revenue. The DC version of this gateway allows three gateways to fit in a rack.

Figure 1-2 MGX 8880 Media Gateway

Changes to this Document

Table 1-1 summarizes the changes made to this document since Release 5.

Table 1-1 Changes to This Guide Since Release 5
Section	Status	Description
APS connector sections in Chapters 1, 5, and 6.	Modified	Updated APS connector illustrations for the MGX 8950, MGX 8850, MGX 8830, and MGX 8880 to show the correct connector and APS assemblies.
Service module sections in Chapters 1 and 2.	Modified	Added AXSM-8-622-XG to the MGX 8950, MGX 8850, MGX 8830, and MGX 8880 compatibility tables.
Table 1-3, "Valid Card Installation Options," on page 7	Modified	Updated compatibility information for front cards, back ards, and valid slots.
MGX 8830/B (PXM45/C) Card Overview, page 2-6	New	Created separate section for the cards supported on the MGX 8830/B with the PXM45/C controller.
MGX 8880 Card Overview, page 2-8	Modified	Removed unsupported cards: AXSM-2-622-E, AXSM-8-155-E , and AXSM-16-T3E3-E.
MGX-RJ45-5-ETH, page 2-111	New	Added MGX-RJ45-5ETH back card for the RPM-PR.
Installing or Removing Redundancy Connectors, page 6-22	New	New procedures for installation or removal of MGX 8850/B and MGX 8830/B RCONs
Installing and Removing the AXSM-XG Extender Connector, page 6-27	New	New procedures for installation or removal of MGX 8950 extender connector for AXSM-XG cards.
Illustrated Cable Guide, page B-25	Modified	Added cable information for MPSM cards.
All	New/Modified	Updated numerous sections within guide to support release 5.1 and 5.2 features including the VXSM-T3 card set introduced in release 5.2. See the Release Notes for more information.

How this Chapter Is Organized

This chapter provides an overview of terms and a description of each switch or gateway and its related components.

Each switch description contains the following sections:

•An introduction to the switch or gateway, including information on the cards that are supported in the chassis

•A description of the card compartment and slot assignments

•A description of system hardware components

Overview of Terms

Each acronym in this book is defined on its first use and in the Glossary at the end of the guide. Types of cards are also defined in the Glossary. For example, MCC is miniature coaxial cable.

In addition to the Glossary, you may find the following discussion of terms helpful.

MGX switches are called multiservice switches, because they can be used for multiple services, such as Asynchronous Transfer Mode (ATM) or Frame Relay (FR) transmissions. Each switch can also be used in different parts of a network. For example, the MGX 8950 can be at the core, the MGX 8850 (PXM45) can be used at the edge, the MGX 8850 (PXM1E) and MGX 8830 switches can do Private Network-to-Network Interface (PNNI) routing and function as feeders.

As of this printing, you can find information about the features of each switch in either of the following ways:

•Go to www.cisco.com and search for the switch name.

•Go to http://www.cisco.com/en/US/products/hw/switches/ps1938/index.html and click on "Cisco MGX 8000 Series Switches".

MGX

MGX originally stood for media gateway switch, and over time, the MGX family has grown in speed, utility, and functionality as described throughout this guide.

Each MGX switch name is a trademark of Cisco (for example, Cisco MGX 8950). But for convenience, in this book, the switch name is often shortened (for example, MGX 8950).

Processor Cards

Each MGX switch or gateway requires a processor switching module (PXM) controller card. Starting with Release 3, there were three models of MGX 8850 switches, so for clarity, the controller card was added to the MGX 8850 switch name, when applicable. For example, MGX 8850 (PXM1), MGX 8850 (PXM45), and MGX 8850 (PXM1E).

Table 1-2 shows the processor cards supported for each model of switch and the 8880 Media Gateway.

Table 1-2 Processor Card Support
	Supports
Model	PXM1E	PXM45/B ¹	PXM45/C ¹	Release
8850		x		Release 2 and above.
			x	Release 4 and above.
	x			Release 3 and above.
8850/B		x	x	Release 5.1 and above.
8950		x	x	Release 2.1 and above.
8830	x			Release 3 and above.
8830/B	x		x	Release 5.1 and above.
8880			x	Release 5 and above.

¹In this guide, collectively referred to as PXM45, unless otherwise specified.

Note The information in this guide does not apply to the Cisco MGX 8850 (PXM1), which uses the PXM1 controller card and Release 1.X software.

For documentation on Cisco MGX Release 1.x software and hardware, refer to http://www.cisco.com/univercd/cc/td/doc/product/wanbu/mgx8850/index.htm.

Multiple Terms

Inside and outside of Cisco, several terms are often used for the same thing. Here are some examples:

•MGX switches contain printed circuit cards called front cards and back cards. Cards are also called blades, modules, or boards. A controller card is sometimes simply called a controller. In this guide, the terms module is used for a front card and card is used for every other type of card.

•An interconnect device that enables redundant operation between cards is called a midplane, an automatic protection switching (APS) backplane connector, or an APS connector. An additional type of connector that enables redundancy is a redundancy connector (RCON).

•Single-height slots can be converted to double-height slots by removing the center guide modules. Center guide modules are also called center guides, midrail dividers, or service module slot divider assemblies. In this guide, the term center guide module is used.

•In the back of the switch, back cards go into bays. The upper bay is also called Bay 1, and the lower bay is also called Bay 2. Figure 1-3 shows the bay and line numbers for an MGX 8850 switch.

•The MP port on the back of the PXM-UI-S3 user interface back card stands for maintenance port or modem port. The CP port on the back of the PXM-UI-S3 user interface back card stands for control port or console port.

Figure 1-3 Bay and Line Numbers in an MGX 8850 Switch

Narrow Band and Cell Bus Service Modules

A cell bus service module (CBSM) is an MGX service module that uses the MGX cell bus to transport customer traffic between that service module and other service modules or PXM uplinks. Traditionally, the CBSM cards were called narrow band service modules (NBSMs) because some AXSM cards (which use the MGX serial bus) support higher rate communications. AXSM cards run only in MGX 2 (and later) switches, and until MGX Release 3, the CBSM cards ran only in MGX 8850 (PXM1). So the purpose of the NBSM term was to collectively refer to all cards that ran in MGX 8850 (PXM1) and MGX 8820, because there were several types of these cards (for example AUSM, FRSM, CESM, and so forth). The serial bus service modules (AXSM and FRSM-12-T3E3) run only in MGX Release 2 and higher switches, hence the reason to differentiate between the two groups of cards.

Now that AXSM cards support narrow band rates and new CBSM cards are being developed for high-speed communications, the narrow- or wideband distinction is inappropriate and could be confusing. For example, one might think that a reference to NBSM cards includes the T1E1 AXSM cards because these cards support narrow band rates (AXSM cards use the serial bus). Although there are many differences between the AXSM and the CBSM, the port speed is no longer a clear differentiator. However, the bus used by AXSM cards and CBSM cards can be used to accurately differentiate between these two classes of cards.

Therefore, in this guide, CBSM is used to collectively refer to all the cards that use the cell bus for communications. Some CBSM cards run on the MGX 8850 (PXM1) and MGX 8820 products, and some are not supported on MGX Release 2 or have become obsolete.

Overview of Card Slot Assignments, by Chassis

As shown in Figure 1-3, the locations where the upper and lower back cards are installed are also called bays. On a Cisco MGX 8850 switch, a Cisco MGX 8950 switch, or a Cisco MGX 8880 Media Gateway, each slot has an upper and a lower bay for back cards.

Table 1-3 lists the valid slot numbers of the front cards (or modules) and back cards. Slot information is listed by chassis.

Note The initial R- on some back cards means that this is a redundant back card, which is used for 1:N card set redundancy without bulk distribution.

Caution

The card and slot arrangements in Table 1-3 are called valid card installation options, because other arrangements are not valid and can actually damage your chassis. For example, it is very important to insert the processor cards such as PXM45 or PXM1E into the correct slot for the switch!

Table 1-3 Valid Card Installation Options
Front Card Type	Description	Back Card Types	Valid Back Card Bay Locations	MGX 8830 ¹ Valid Slot Numbers	MGX 8850 ² Valid Slot Numbers	MGX 8880 Valid Slot Numbers	MGX 8950 Valid Slot Numbers
AUSM8E1/B	8 port ATM Universal Service Modules with E1 interfaces	RJ48-8E1 MGX-RJ48-8E1³ R-RJ48-8E1 SMB-8E1 R-SMB-8E1	Upper and lower	3-6, 10-13⁴	1-6, 9-14, 17-22, 25-30⁵	—	—
AUSM8T1/B	8 port ATM Universal Service Modules with T1 interfaces	RJ48-8T1 R-RJ48-8T1	Upper and lower	3-6, 10-13⁴	1-6, 9-14, 17-22, 25-30⁵,⁶	—	—
AXSM-1-2488⁷	1 port OC-48/STM-64 Note No traffic shaping supported.	SMFSR-1-2488 SMFLR-1-2488 SMFXLR-1-2488	Upper	—	1-6, 9-14¹³	—	—
AXSM-1-2488/B⁷	1 port OC-48/STM-16 Note No traffic shaping supported.	SMFSR-1-2488/B SMFLR-1-2488/B SMFXLR-1-2488/B	Upper	—	1-6, 9-14¹³	1-6, 9-14	1-6, 11-16
AXSM-1-9953-XG⁷	1-port OC192/STM-64	SMFSR-1-9953 SMFIR-1-9953 SMFLR-1-9953 SMFXLR-1-9953	Upper and lower⁷	—	—	—	1-6, 11-16
AXSM-2-622-E⁷	2-port OC-12/STM-4 (622 Mbps)	SMFIR-1-622/C SMFLR-1-622/C	Upper and lower	3-6, 10-13⁸	1-6, 9-14¹³	1-6, 9-14	—
AXSM-4-622⁷	4-port OC-12	SMFIR-2-622 SMFLR-2-622	Upper and lower	—	1-6, 9-14¹³	—	—
AXSM-4-622/B⁷	4-port OC-12	SMFIR-2-622/B SMFLR-2-622/B	Upper and lower	—	1-6, 9-14¹³	1-6, 9-14	1-6, 11-16⁷
AXSM-8-622-XG⁷	8-port OC-12	SFP-4-622	Upper and lower	3-6, 10-13⁸	1-6, 9-14¹³	—	1-6, 11-16⁹
AXSM-4-2488-XG⁷	4 port OC-48/STM-16 (clear or channelized to DS3)	SMFSR-4-2488-SFP This card supports the following FRUs: •SMFSR-1-2488- SFP •SMFLR-1-2488- SFP	Upper and lower⁷	—	—	—	1-6, 11-16
AXSM-8-155-E⁷	8-port OC-3/STM-1 (155 Mbps)	MMF-4-155-MT/B SMFIR-4-155-LC/B SMFLR-4-155-LC/B SMB-4-155	Upper and lower	—	1-6, 9-14¹³	1-6, 9-14	—
AXSM-16-155⁷	16-port OC-3	MMF-8-155-MT MMF-8-155-MT/B SMFIR-8-155-LC SMFIR-8-155-LC/B SMFLR-8-155-LC SMFLR-8-155-LC/B	Upper and lower	—	1-6, 9-14¹³	—	—
AXSM-16-155/B⁷	16-port OC-3	SMB-4-155 MMF-8-155-MT/B SMFIR-8-155-LC/B SMFLR-8-155-LC/B	Upper and lower	—	1-6, 9-14¹³	1-6, 9-14	1-6, 11-16
AXSM-16-155- XG⁷	16-port OC-3	MCC-8-155 SFP-8-155 The SFP-8-155 card supports the following FRUs: •SMFIR-1-155-SFP •SMFLR-1-155-SFP	Upper and lower	3-6, 10-13⁸	1-6, 9-14¹³	—	1-6, 11-16⁹
AXSM-16-T3E3⁷	16-port T3/E3	SMB-8-T3 SMB-8-E3	Upper and lower	—	1-6, 9-14¹³	—	—
AXSM-16-T3E3/B⁷	16-port T3/E3	SMB-8-T3 SMB-8-E3	Upper and lower	—	1-6, 9-14¹³	1-6, 9-14	1-6, 11-16
AXSM-16-T3E3-E⁷	16-port T3/E3	SMB-8-T3 SMB-8-E3	Upper and lower	3-6, 10-13⁸	1-6, 9-14¹³	1-6, 9-14	—
AXSM-32-T1E1-E⁷	32-port T1/E1	MCC8-16-E1 RBBN8-16-T1E1	Upper and lower	—	1-6, 9-14¹³	1-6, 9-14	—
CESM-8E1	8 port Circuit Emulation Service Module with E1 interfaces	RJ48-8E1 R-RJ48-8E1 MGX-RJ48-8E1³ SMB-8E1 R-SMB-8E1	Upper and lower	3-6, 10-13⁴	1-6, 9-14, 17-22, 25-30⁵	—	—
CESM-8T1	8 port Circuit Emulation Service Module with T1 interfaces	RJ48-8T1 R-RJ48-8T1	Upper and lower	—	1-6, 9-14, 17-22, 25-30⁵, ¹³	—	—
CESM-8T1/B	8 port Circuit Emulation Service Module with T1 interfaces	RJ48-8T1 R-RJ48-8T1	Upper and lower	3-6, 10-13⁴	1-6, 9-14, 17-22, 25-30⁵	—	—
FRSM-12-T3E3⁷	12-port T3/E3	SMB-6-T3E3	Upper and lower	—	1-6, 9-14¹³	—	—
FRSM-2CT3	2 port channelized Frame Relay Service Module with T3 interfaces	MGX-BNC-2T3	Upper and lower	3-6, 10-13⁴	1-6, 9-14, 17-22, 25-30⁵	—	—
FRSM-8E1	8 port Frame Relay Service Modules with E1 interfaces	RJ48-8E1 MGX-RJ48-8E1³ R-RJ48-8E1 SMB-8E1 R-SMB-8E1	Upper and lower	3-6, 10-13⁴	1-6, 9-14, 17-22, 25-30⁵	—	—
FRSM-8E1-C	8 port channelized Frame Relay Service Module with E1 interfaces	RJ48-8E1 MGX-RJ48-8E1³ R-RJ48-8E1 SMB-8E1 R-SMB-8E1	Upper and lower	3-6, 10-13⁴	1-6, 9-14, 17-22, 25-30⁵	—	—
FRSM-8T1	8 port Frame Relay Service Modules with T1 interfaces	RJ48-8T1 R-RJ48-8T1	Upper and lower	3-6, 10-13⁴	1-6, 9-14, 17-22, 25-30⁵	—	—
FRSM-8T1-C	8 port channelized Frame Relay Service Module with T1 interfaces	RJ48-8T1 R-RJ48-8T1	Upper and lower	3-6, 10-13⁴	1-6, 9-14, 17-22, 25-30⁵	—	—
FRSM-HS2/B	2 port Frame Relay Service Module with HSSI interfaces	SCS12-2HSSI/B MGX-121N1-8S	Upper and lower	3-6, 10-13⁶	1-6, 9-14, 17-22, 25-30⁵	—	—
MPSM-8-T1E1	8 ATM service ports with E1 interfaces	RJ48-8E1 MGX-RJ48-8E1³ R-RJ48-8E1 SMB-8E1 R-SMB-8E1	Upper and lower	3-6, 10-13	1-6, 9-14, 17-22, 25-30⁵	—	—
	8 ATM service ports with T1 interfaces	RJ48-8T1 R-RJ48-8T1	Upper and lower	3-6, 10-13	1-6, 9-14, 17-22, 25-30⁵	—	—
	8 Frame Relay service ports with E1 interfaces	RJ48-8E1 MGX-RJ48-8E1³ R-RJ48-8E1 SMB-8E1 R-SMB-8E1	Upper and lower	3-6, 10-13	1-6, 9-14, 17-22, 25-30⁵	—	—
	8 Frame Relay service ports with T1 interfaces	RJ48-8T1 R-RJ48-8T1	Upper and lower	3-6, 10-13	1-6, 9-14, 17-22, 25-30⁵	—	—
	8 circuit emulation service ports with E1 interfaces	RJ48-8E1 MGX-RJ48-8E1³ R-RJ48-8E1 SMB-8E1 R-SMB-8E1	Upper and lower	3-6, 10-13	1-6, 9-14, 17-22, 25-30⁵	—	—
	8 circuit emulation service ports with T1 interfaces	RJ48-8T1 R-RJ48-8T1	Upper and lower	3-6, 10-13	1-6, 9-14, 17-22, 25-30⁵	—	—
MPSM-16-T1E1	16 port service module for ATM and Frame Relay services over T1 or E1 interfaces.¹⁰	RBBN-16-T1E1 RBBN-16-T1E1-1N RED-16-T1E1¹¹	Upper and lower	3-6, 10-13¹²	1-6, 9-14, 17-22, 25-30¹²	—	—
MPSM-16-T1E1	16 port service module for ATM and Frame Relay services over T1 or E1 electrical interfaces.¹⁰	MCC-16-E1 MCC-16-E1-1N ¹¹ RED-16-T1E1	Upper and lower	3-6, 10-13¹²	1-6, 9-14, 17-22, 25-30¹²	—	—
MPSM-T3E3-155	2 port service module for ATM and Frame Relay services over OC-3 interfaces.	SFP-2-155	Upper and lower	3-6, 10-13	1-6, 9-14, 17-22, 25-30	—	—
	2 port service module for ATM and Frame Relay services over OC-3 electrical interfaces.	SMB-2-155-EL	Upper and lower	3-6, 10-13	1-6, 9-14, 17-22, 25-30	—	—
	3 port service module for ATM and Frame Relay services over T3 and E3 electrical interfaces.	BNC-3-T3E3	Upper and lower	3-6, 10-13	1-6, 9-14, 17-22, 25-30	—	—
PXM1E-4-155⁷	Processor Switch Module 4-port OC-3	PXM-UI-S3/B	Upper	1 and 2	7 and 8	—	—
PXM1E-4-155⁷	Processor Switch Module 4-port OC-3	MMF-4-155/C SMFIR-4-155/C SMFLR-4-155/C	Lower	1 and 2	7 and 8	—	—
PXM1E-8-155⁷	Processor Switch Module 8-port OC-3	PXM-UI-S3/B	Upper	1 and 2	7 and 8	—	—
PXM1E-8-155⁷	Processor Switch Module 8-port OC-3	SFP-8-155 MCC-8-155 Transceivers: •MMF-1-155-SFP •SMFLR-1-155-SFP •SMFIR-1-155-SFP	Lower	1 and 2	7 and 8	—	—
PXM1E-8-T3E3⁷	Processor Switch Module 8-port T3/E3	PXM-UI-S3/B	Upper	1 and 2	7 and 8	—	—
PXM1E-8-T3E3⁷	Processor Switch Module 8-port T3/E3	SMB-8-T3 SMB-8-E3	Lower	1 and 2	7 and 8	—	—
PXM1E-16-T1E1⁷	Processor Switch Module 16-port T1/E1	PXM-UI-S3/B	Upper	1 and 2	7 and 8	—	—
PXM1E-16-T1E1⁷	Processor Switch Module 16-port T1/E1	MCC-16-E1 RBBN-16-T1E1	Lower	1 and 2	7 and 8	—	—
PXM1E-COMBO⁷	Processor Switch Module 4-port OC-3, 8-port T3/E3	PXM-UI-S3/B	Upper	1 and 2	7 and 8	—	—
PXM1E-COMBO⁷	Processor Switch Module 4-port OC-3, 8-port T3/E3	MGX-T3E3-155 Transceivers: •MMF-1-155-SFP •SMFLR-1-155-SFP •SMFIR-1-155-SFP	Lower	1 and 2	7 and 8	—	—
PXM45⁷	Processor Switch Module	UI Stratum-3	Upper	—	7 and 8	—	—
PXM45⁷	Processor Switch Module	PXM Hard Disk Drive	Lower	—	7 and 8	—	—
PXM45/B⁷	Processor Switch Module	UI Stratum-3	Upper	—	7 and 8	—	7 and 8
PXM45/B⁷	Processor Switch Module	PXM Hard Disk Drive	Lower	—	7 and 8	—	7 and 8
PXM45/C⁷	Processor Switch Module	UI Stratum-3/B	Upper	—	7 and 8	7 and 8	7 and 8
PXM45/C⁷	Processor Switch Module	PXM Hard Disk Drive	Lower	—	7 and 8	7 and 8	7 and 8
RPM-PR-256⁷ RPM-PR-512⁷	Route Processor Module	MGX-RJ45-4E/B MGX-RJ45-FE MGX-MMF-FE MGX-RPM-1FE-CP MGX-RJ45-5-ETH	Upper and lower	3-6	1-6, 9-14	1-6, 9-14	1-6, 11-16
RPM-XF-512⁷,¹³	Route Processor Module	Lower Bay: •MGX-XF-UI Upper Bay: •MGX-1OC12POS-IR •MGX-2OC12POS-IR •MGX-1GE •MGX-2GE Note Back cards are optional with the RPM-XF.	According to back card type	3-6	1-6, 9-14	1-6 permitted,9-14 preferred	1-6, 11-16
SRM-3T3/C	3 port Service Redundancy Module with T3 interfaces	BNC-3T3-M	Upper and lower	7 and 14⁴	15,16, 31, 32	—	—
SRME	1 port Service Redundancy Module with SONET or SDH interfaces	MGX-SMFIR-1-155 MGX-STM1-EL-1	Upper and lower	7 and 14⁴	15,16, 31, 32	—	—
SRME/B	1 or 3 port Service Redundancy Module with T3, SONET, or SDH interfaces	MGX-SMFIR-1-155 MGX-STM1-EL-1 BNC-3T3-M	Upper and lower	7 and 14	15,16, 31, 32	15,16, 31, 32	—
VISM-PR-8E1	8-port E1 Voice Internetworking Service Module	AX-SMB-8E1 AX-R-SMB-8E1 AX-RJ48-8E1 AX-R-RJ48-8E1 MGX-RJ48-8E1³	Upper and lower	3-6, 10-13	1-6, 9-14, 17-22, 25-30	1-6, 9-14, 17-22, 25-30¹⁴	—
VISM-PR-8T1	8-port T1 Voice Internetworking Service Module	AX-RJ48-8T1 AX-R-RJ48-8T1	Upper and lower	3-6, 10-13	1-6, 9-14, 17-22, 25-30	1-6, 9-14, 17-22, 25-30¹⁴	—
VXSM-4-155⁷	4-port OC-3 Voice Switch Service Module	VXSM-BC-4-155 VXSM-R-BC	Upper and lower¹⁵	—	1-6, 9-14¹³	1-6, 9-14	—
VXSM-48-T1E1⁷	48-port T1 and E1 Voice Switch Service Module	VXSM-BC- 24-T1E1 VXSM-R-BC	Upper and lower	—	1-6, 9-14¹³	1-6, 9-14	—
VXSM -6-T37	6-port T3 voice Switch Service Module	VXSM-BC-3-T3 VXSM-R-BC	Upper and lower	—	1-6, 9-14¹³	1-6, 9-14	—
XM60	Switch Module 60 60 Gbps switch fabric	none	none	—	—	—	9, 10, 25, 26

¹MGX 8830 support includes MGX 8830/B within this table, unless otherwise noted.

²MGX 8850 support includes MGX 8850/B within this table, unless otherwise notes.

³This card is for use in Australia.

⁴Not supported on MGX 8830 (PXM45) aor MGX 8830/B (PXM45).

⁵SRM-3T3 does not support bulk distribution to 8-port T1 cards in slots 9, 10, 25, and 26. If SRM-3T3 and SRME/B with a T3 interface coexist in the same bay, bulk distribution for 8-port T1 cards in these slots is not supported. If a SRME/B with a T3 interface is replaced with an SRM-3T3, bulk distribution for 8-port T1 cards in these slots is not supported.

⁶Not supported on MGX 8850 (PXM45) or MGX 8850/B (PXM45) chassis.

⁷Double-height card.

⁸Not supported on MGX 8830 (PXM1E) or MGX 8830/B (PXM1E) chassis.

⁹MGX8950-EXTDR-CON is required for AXSM-16-155-XG and AXSM-8-622-XG cards in the Cisco MGX 8950 chassis.

¹⁰Configure the card for T1 or E1 mode using the cnfcdmode command.

¹¹Used for 1:N redundancy with RED-16-T1E1 in MGX 8850/B and MGX 8830/B chassis.

¹²Supported on MGX 8850/B and MGX 8830/B only.

¹³Not supported on MGX 8850 (PXM1E) or MGX 8850/B (PXM1E) chassis.

¹⁴Bulk distribution is required if RCONs are installed in the upper slots.

¹⁵A VXSM back card is installed in the lower bay only when intracard APS is in use.

MPSM Slot Assignments and MPSM Licensing

Consult your Cisco Customer Engineering representative for information about characterizing the quantity and placement of MPSM cards suitable for your network. For more information about MPSM licensing, see the the Release Notes for Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, and Cisco MGX 8830 Switches, Release 5.2.00.

Cisco MGX 8850 and MGX 8850/B Switches

The Cisco MGX 8850 (PXM45) multiservice switch was introduced in October 2000, on MGX Release 2.0. It used a PXM45 controller card.

Another MGX 8850 model was introduced in June 2002, on MGX Release 3.0.00. This model uses the new PXM1E controller card. Thus, starting with Release 3.0.00, for clarity, the controller card was added to the MGX 8850 switch name. For example, MGX 8850 (PXM45) and MGX 8850 (PXM1E). The MGX 8850 (PXM45) and MGX 8850 (PXM1E) switches look very similar.

Another model, the MGX 8850/B was introduced in January 2005. This model also has a PXM45 version and PXM1E version, depending on the controller card. Further, this switch supports 1:N redundancy with the support of a factory-installed redundancy connector card(s). Figure 1-4 is an illustration of an installed RCON in an MGX 8850/B.

Figure 1-4 RCON Installed in MGX 8850/B Chassis (Chassis Rear View)

Note The information in this guide does not apply to the Cisco MGX 8850 (PXM1), which uses the PXM1 controller card and Release 1.x software. For documentation on Cisco MGX Release 1.x software and hardware, refer to http://www.cisco.com/univercd/cc/td/doc/product/wanbu/mgx8850/index.htm.

With the Cisco MGX 8850 switch, multiple control planes support flexibility and scalability in deploying, managing, and modifying a complete range of ATM, Multiprotocol Label Switching (MPLS), and voice services.

This section provides the following information:

•Features

•MGX 8850 (PXM1E) and MGX 8850/B (PXM1E) Switch Overview

•MGX 8850 (PXM45) and MGX 8850/B (PXM45) Switch Overview

Features

Table 1-4 lists supported features for the Cisco MGX 8850 and MGX 8850/B switches.

Table 1-4 Cisco MGX 8850 (PXM1E/PXM45) Switch Features
Feature	MGX 8850 (PXM1E) MGX 8850/B (PXM1E)	MGX 8850 (PXM45) MGX 8850/B (PXM45)
Services: •ATM •Circuit emulation •Frame Relay •IP •Voice	Yes Yes Yes Yes Yes	Yes No Yes Yes Yes
Maximum throughput	1.2 Gbps	45 Gbps
Supports bulk distribution	Yes, module dependent	Yes, module dependent
Supports card set redundancy	Yes, module dependent	Yes, module dependent
Supports 1:N redundancy¹	Yes, module dependent	Yes, module dependent
Supports APS line redundancy²	Yes, module dependent	Yes, module dependent

¹MGX 8850/B models only.

²See Table 4-4 on page 4-19 for APS connector options and requirements.

The MGX 8850 or MGX 8850/B switch:

•Can use either an AC or a DC power source

•Is shipped in one of two configurations:

–Cisco cabinet configuration—All components are shipped preinstalled in a Cisco cabinet.

–Open rack configuration—Individual components are shipped ready for installation in a customer-supplied open rack or a third-party vendor cabinet.

•Fits in a 19-inch or a 23-inch rack

MGX 8850 (PXM1E) and MGX 8850/B (PXM1E) Switch Overview

The PXM1E is a PNNI-enabled, double-height switch controller card that provides switching capabilities for use at the ATM network edge.

Service modules support communications between non-ATM services (such as Frame Relay and IP) and the ATM services on an ATM network. All network communications or customer traffic in and out of the switch goes through the service modules and route processor modules (RPMs). When a service module or RPM is combined with one or two back cards, a card set is created.

The MGX 8850 (PXM1E) and MGX 8850/B (PXM1E) switches support the following module types:

•ATM User-to-Network Interface (UNI) service module (AUSM)—Single-height front card

•Circuit emulation service module (CESM)—single-height front card

•Frame Relay service module (FRSM)—single-height front card

•Service resource module (SRM)—single-height front card

•Route processing module (RPM)—double-height front card

•Voice interworking service module (VISM)—single-height front card

MGX 8850 (PXM45) and MGX 8850/B (PXM45) Switch Overview

Note In this guide, PXM45, PXM45/B, and PXM45/C controller cards are identified collectively as PXM45, unless otherwise specified.

The PXM45 controller card allows implementation of a complete range of narrow band services for high-density edge applications and broadband aggregation with 45 Gbps of nonblocking switching. The PXM45 can also be used exclusively for broadband aggregation and backbone functions.

Service modules support communications between non-ATM services and the ATM services on an ATM network. All network communications or customer traffic in and out of the switch goes through the service modules and RPM cards. When a service module or RPM is combined with a one or two back cards, a card set is created.

The MGX 8850 (PXM45) and MGX 8850/B (PXM45) switches support the following module types:

•ATM service module (AXSM)—double-height front card

•Circuit emulation service module (CESM)—single-height front card

•Frame Relay service module (FRSM)—single- or double-height front card

•Route processing module (RPM)—double-height front card

•Service resource module (SRM)—single-height front card

•VISM—Single-height front card

Note The only VISM card supported in the Cisco MGX 8850 (PXM45) is the VISM-PR.

•VXSM—double-height front card

PXM45 Controller Card RAM and Software Release History

Updates to the PXM45 controller card included the PXM45/B and PXM45/C cards. The PXM45 RAM and software release history is as follows:

•PXM45, introduced October 2000, with MGX Release 2 software and 128 MB RAM

•PXM45/B, introduced October 2001, with MGX Release 2.1 software and 256 MB RAM

•PXM45/C, introduced April 2003, with MGX Release 4.0 software and 512 MB RAM

MGX 8850 and MGX 8850/B Card Compartment

The MGX 8850 and MGX 8850/B switches each have 32 single-height slots in a compartment card cage that holds cards and modules. Some single-height slots can be converted to double-height slots by removing the service module slot dividers.

Table 1-3 lists the cards supported in a MGX 8850 and MGX 8850/B switches. Abbreviated card names are listed in the Glossary. (The initial R- on some back cards means that this is a redundant back card, which is used for 1:N card set redundancy without bulk distribution.)

Each slot on the front of the switch is numbered and has a corresponding slot located on the back of the switch. There are 32 front card slots and 32 back card slots. Slots 1 through 16 are in the top bay, and slots 17 through 32 are in the bottom bay of the switch.

Slot assignments and module support varies with the type of processor switching module you install in your switch (PXM1E or PXM45). The processor switching module allows service providers to deploy a complete set of services with up to 45 Gbps of nonblocking switching for low-density or remote deployments.

The following sections describe the supported cards and slot assignments for each type of processor switching module:

•MGX 8850 (PXM1E) and MGX 8850/B (PXM1E) Slot Assignments

•MGX 8850 (PXM45) and MGX 8850/B (PXM45) Slot Assignments

MGX 8850 (PXM1E) and MGX 8850/B (PXM1E) Slot Assignments

Table 1-3 gives module slot assignments for the MGX 8850 (PXM1E) or MGX 8850/B (PXM1E) switch. Figure 1-5 shows module slot assignments (front view).

Figure 1-5 Cisco MGX 8850 (PXM1E) or MGX 8850/B (PXM1E) Slot Assignments—Front View

Figure 1-6 shows each module slot assignment (rear view) of the MGX 8850 (PXM1E) or
MGX 8850/B (PXM1E) switch.

Figure 1-6 MGX 8850 (PXM1E) or MGX 8850/B (PXM1E) Switch Slot Assignment—Rear View

MGX 8850 (PXM45) and MGX 8850/B (PXM45) Slot Assignments

Table 1-3 lists the module slot assignments for the MGX 8850 (PXM45) or MGX 8850/B (PXM45) switch. Figure 1-7 shows module slot assignments (front view) for the Cisco MGX 8850 (PXM45) switch or MGX 8850/B (PXM45) switch.

Figure 1-7 Cisco MGX 8850 (PXM45) Switch Slot Assignments—Front View

Figure 1-8 shows module slot assignments (rear view) for the Cisco MGX 8850 (PXM45) or MGX 8850/B (PXM45) switch.

Figure 1-8 Cisco MGX 8850 (PXM45) Switch Slot Assignments—Rear View

MGX 8850 and MGX 8850/B System Hardware Components

Each Cisco MGX 8850 or MGX 8850/B switch supports the following hardware components:

•AC power supply tray (optional)—with power supply modules

•Air intake plenum

•APS connector—for line redundancy (optional)

•DC power entry module (PEM)

•Exhaust plenum

•Lower and upper fan trays

•1:N Redundancy Connector (RCON)—MGX 8850/B only (optional)

Figure 1-9 shows the hardware components that can be used with a Cisco MGX 8850 switch (viewed from the front of the switch). This illustration also shows the optional AC power supply tray installed at the bottom of the system. The switch can have an optional front door installed (as shown in Figure 1-9).

For the switch to be EMI compliant, either the optional front door must be installed on the switch or blank faceplates must be installed to cover any empty slots.

Note The DC PEM is installed on the rear of the chassis. The APS assembly is not visible in the illustration because it is installed inside the card cage.

Figure 1-9 Hardware Component Locations for a MGX 8850 or MGX 8850/B Switch—Front View

This section provides details about the following MGX 8850 or MGX 8850/B switch hardware components:

•AC Power Supply Tray

•Air Intake Plenum

•APS Assembly

•DC Power Entry Module

•Exhaust Plenum

•Lower and Upper Fan Trays

•MGX 8850/B Redundancy Connectors

AC Power Supply Tray

The Cisco MGX 8850 switch can accept power from a 220 VAC (180 to 254 VAC) source that connects to an optional AC power supply tray, shown in Figure 1-10. The optional AC power supply tray houses up to six AC power supplies and is installed directly below the air intake plenum. The AC power supplies convert 220 VAC to -48 VDC power for the switch.

Figure 1-10 Optional AC Power Supply Tray


1	Release	3	Front flange
2	Blank panel	4	Air intake grille

Note Figure 1-10 shows only four AC power supplies installed in the AC power supply tray.

Figure 1-11 shows a close-up of the AC power supply faceplate.

Figure 1-11 AC Power Supply Faceplate


1	DC okay LED—Green	3	Handle
2	AC okay LED—Green	4	Captive screw

The AC power supply requirements for the switch depend on the following criteria:

•The number of service modules installed in the switch

•Whether the switch is a single AC power cord system or a dual AC power cord system

Use the guidelines in Table 1-5 for the AC power supply requirements.

Table 1-5 AC Power Supply Requirements for the MGX 8850 and MGX 8850/B Switch
Number of Service Modules Installed		Number of Power Supplies Required per Switch
Double-Height	Single-Height	Number of Power Supplies Required per Switch
1 to 5	1 to 10	2 AC power supplies (minimum) for a dual or a single AC power cord system
6 to 10	11 to 20	4 AC power supplies (minimum) for a dual AC power cord system (2 on each power cord) 3 AC power supplies (minimum) for a single AC power cord system
11 or more	21 or more	6 AC power supplies for a dual AC power cord system 4 AC power supplies for a single power cord system

Note For AC power cord requirements, see the "Required Tools and Equipment" section on page 3-25.

Air Intake Plenum

The air intake plenum is installed below the lower fan tray (see Figure 1-9 for location). The fan trays pull air up through the modules to cool the modules. Then the air is forced up and out of the exhaust plenum, as shown in Figure 1-12.

Figure 1-12 Air Flow through the MGX 8850 or MGX 8850/B System

There are two versions of the air intake plenum in the field:

•MGX-PLENUM=—Support from Release 2 to Release 3.0.10

•MGX-PLENUM-FLTR=—Support from Release 4 and forward has the capability to hold an air filter. Air filters can be purchased through a third party.

Note For information about replacing the air filter, see "Replacing the Air Intake Plenum Filter" section on page 6-13.

APS Assembly

For both equipment and fiber protection, 1+1 card and APS line redundancy require an APS connector that links the two optical back cards: an active card and a standby card. Figure 1-13 shows the MGX-8850-APS-CON connector.

Figure 1-13 MGX-8850-APS-CON

Figure 1-14 shows an example of two back cards installed in the 8850 APS connector. When the two back cards are inserted into an APS connector, they form an APS assembly. The APS assembly is installed in the rear of the switch.

Figure 1-14 APS Assembly Example for MGX 8850 (MGX-8850-APS-CON)

Two APS connectors are available for the MGX 8850 or MGX 8850/B switch (Cisco Part Number MGX-8850-APS-CON or MGX-APS-CON). Table 1-6 lists the modules that the APS connectors support. For more information about APS options and requirements, see Table 4-4.

Table 1-6 APS Connector Support for MGX 8850 or MGX 8850/B Switch Modules
Module	MGX-8850-APS-CON (MGX 8850 and MGX 8850/B)	MGX-APS-CON (MGX 8850 only)
AXSM-1-2488¹	Yes	Yes
AXSM-1-2488/B	Yes	Yes
AXSM-2-622-E	Yes	Yes
AXSM-4-622	Yes	Yes
AXSM-4-622/B	Yes	Yes
AXSM-8-155-E	Yes	Yes
AXSM-16-155	Yes	Yes
AXSM-16-155/B	Yes	Yes
AXSM-8-622-XG	Yes	Yes
MPSM-T3E3-155	Yes	No
PXM1E-4-155	Recommended	Recommended
PXM1E-8-155	Yes	Yes
SRME	Yes	No

¹Not supported with MGX 8850/B (PXM1E) switch

Caution

Although the PXM1E-4-155 does not need an APS connector to support APS line redundancy, it is recommended that you install the PXM1E-4-155 in an APS connector to support a seamless upgrade to the PXM1E-8-155 card.

For information on APS software configuration, refer to the software configuration guide that matches your MGX switch name and release. The "Obtaining Documentation" section explains how to find these documents online.

DC Power Entry Module

The MGX 8850 or MGX 8850/B switch can accept power from a -48 VDC (-42 to -56 VDC) source that connects to one (primary) or two (secondary/redundant) -48 VDC PEMs. Each DC PEM must be connected to a dedicated 60 A regulated source. Figure 1-15 shows a close-up of the DC PEM faceplate.

Figure 1-15 DC PEM Faceplate


1	Two-position circuit breaker. The positions are Off and On.	4	Plastic cover.
2	J1 output connector.	5	Terminal block 1 (DC input).
3	Green LED showing status of the DC PEM.

For a DC-powered system, the DC PEMs are installed at the back of the air intake plenum. If you install only one DC PEM, install it on the right, as viewed from the rear of the air intake plenum. (See Figure 1-16.)

Figure 1-16 DC PEMs Installed in Back of the Air Intake Module

For more information about DC power requirements, see the "Power Requirements" section on page 3-17.

Exhaust Plenum

The exhaust plenum is installed above the upper fan tray (see Figure 1-9 for location). The fan trays pull air from the air intake plenum up through the modules to cool the modules. Then the air is forced up and out of the exhaust plenum, as shown in Figure 1-12.

Lower and Upper Fan Trays

Each fan tray houses nine fans that provide system cooling. The MGX 8850 or MGX 8850/B switch requires that two fan trays (upper and lower) be installed when the system is in operation.

Figure 1-9 shows the location of the lower and upper fan trays in a system. Figure 1-17 shows the rear view of the fan tray.

Caution

When a fan tray is installed, the arrow on the air flow direction label on the back of the fan tray should point up.

Figure 1-17 Fan Tray—Rear View

When the switch is shipped pre-installed in a Cisco-supplied cabinet, the fan trays are installed in the cabinet as well.

Caution

If a fan tray fails, replace it immediately.

MGX 8850/B Redundancy Connectors

The MGX 8850/B chassis has optional 1:3 (RCON-1to3-8850) and 1:5 (RCON-1TO5-8850) RCONs for 1:N redundancy when using MPSM-16-T1E1 cards. A single chassis supports up to four RCONs, on the left and right sides of the upper and lower bays. These RCONs are keyed to ensure that back cards are inserted properly.

Figure 1-4 shows an RCON installed in an MGX 8850/B chassis. Figure 1-18 and Figure 1-19 show the 1:5 and 1:3 assemblies, respectively.

Figure 1-18 RCON-1TO5-8850 RCON Connector

Figure 1-19 RCON-1TO3-8850 RCON Connector

To install or remove RCONs, see Installing or Removing Redundancy Connectors, page 6-22.

Cisco MGX 8950 Switch

The MGX 8950 multiservice core switch was introduced in May 2002 on MGX Release 2.1.76.

MGX 8950 Switch Overview

The MGX 8950 multiservice switch is a high-capacity ATM backbone switch that provides the following features:

•Scalability up to 180-Gbps fully redundant nonblocking throughput within a single chassis

•Industry-leading broadband density

•Aggregation of OC-3C/STM-1, OC-12Cc/STM-4, and OC-48c/STM-16 trunks

•Highest network availability in the industry

•Single-platform support for permanent virtual circuits/paths (PVCs/PVPs), soft permanent virtual circuits/paths (SPVCs/SPVPs), switched virtual circuits/paths (SVCs/SVPs), label virtual circuits (LVCs), PNNI, and MPLS

The MGX 8950 supports the following services:

•High-density broadband ATM

•Scaling MPLS services

•Convergence of voice and data networks

The MGX 8950 switch:

•Provides up to 240 Gbps of switching capacity through the backplane, using four dedicated switch fabric modules (XM60s), each containing 60 Gbps of cross-bar switching fabric

•Can use either an AC or a DC power source

•Is shipped in one of two configurations:

–Cisco cabinet configuration—All components are shipped preinstalled in a Cisco cabinet.

–Open rack configuration—Individual components are shipped ready for installation in a customer-supplied open rack or a third-party vendor cabinet.

•Fits in a 19-inch or a 23-inch rack

•Supports the following modules:

–ATM switching service module (AXSM)

–Processor switching module (PXM45/B or PXM45/C)

–Route processor module-premium (RPM-PR)

–Route processor module-express forwarding (RPM-XF)

–XM60

Figure 1-20 shows the MGX 8950 switch and corresponding hardware components.

Figure 1-20 Hardware Component Locations for a Cisco MGX 8950 Switch—AC-Powered Version

MGX 8950 Card Compartment

The MGX 8950 switch has 32 single-height slots in a compartment card cage that holds cards and modules. Some single-height slots can be converted to double-height slots by removing the midrail dividers.

MGX 8950 Slot Assignments

Each slot on the front of the switch is numbered and has a corresponding slot located on the back of the switch. There are 32 front card slots and 32 back card slots. Slots 1 through 16 are in the top bay and slots 17 through 32 are in the bottom bay of the switch.

Table 1-3 lists module slot assignments for the MGX 8950 switch.

MGX 8950 Cards Supported

Table 1-3 lists cards supported in a MGX 8950 switch. The MGX 8950 switch was introduced in MGX Release 2.1.

MGX 8950 System Hardware Components

This section provides details about the following MGX 8950 switch hardware components;

•AC Power Supply Tray

•Extender Card

•Air Intake and Exhaust Plenums

•APS Assembly

•Cable Management Assembly

•DC Power Entry Module

•Lower and Upper Fan Trays