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Cisco Systems MGX 8800, MGX 8900 Removing the Extender Connector

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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

Chapter6 Maintaining the Cisco MGX Switch or Gateway

Installing and Removing the AXSM-XG Extender Connector

Figure6-17 MGX8950-EXTDR-CON Assembly

Step5 Tighten the four mounting screws.

Removing the Extender Connector

To install the extender connector:

Step1 Remove the four mounting screws and washers from the extender connector.

Step2 Remove the extender connector from the board.

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Contents

Main Cisco MGX 8800/8900 Series Hardware Installation Guide Page CONTENTS Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page About This Guide Audience Purpose Organization Conventions Notes, Warnings, and Cautions Notes about Warnings Scope of this Guide New Hardware Introduced in Releases 4.0.10 through 5.3 New Back Cards Introduced in Releases 4.0.10 through 5.3 Documentation Documentation Notes for these Product Releases Related Documentation User GuideOrder of Use User Guide Titles and Descriptions Terms Page Page Page Page Page Page Page Page Page Page Obtaining Documentation Cisco.com Product Documentation DVD Ordering Documentation Documentation Feedback Cisco Product Security Overview Reporting Security Problems in Cisco Products Obtaining Technical Assistance Cisco Technical Support & Documentation Website Submitting a Service Request Definitions of Service Request Severity Obtaining Additional Publications and Information Page Page Product Overviews Page Changes to this Document How this Chapter Is Organized Overview of Terms MGX Processor Cards Multiple Terms 1-6 Narrow Band and Cell Bus Service Modules Overview of Card Slot Assignments, by Chassis Page Page Page Page Page Page Page MPSM Slot Assignments and MPSM Licensing Cisco MGX 8850 and MGX 8850/B Switches Page Features MGX 8850 (PXM1E) and MGX 8850/B (PXM1E) Switch Overview MGX 8850 (PXM45) and MGX 8850/B (PXM45) Switch Overview PXM45 Controller Card RAM and Software Release History MGX 8850 and MGX 8850/B Card Compartment 1-20 MGX 8850 (PXM1E) and MGX 8850/B (PXM1E) Slot Assignments 1-21 1 16 15 14 13 12 11 10 98765432 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 1-22 MGX 8850 (PXM45) and MGX 8850/B (PXM45) Slot Assignments 1-23 MGX 8850 and MGX 8850/B System Hardware Components Each Cisco MGX 8850 or MGX 8850/B switch supports the following hardware components: Page Page Page Air Intake Plenum Page Page DC Power Entry Module Page Exhaust Plenum Lower and Upper Fan Trays MGX 8850/B Redundancy Connectors Cisco MGX 8950 Switch MGX 8950 Switch Overview 1-35 Cisco cabinet configurationAll components are shipped preinstalled in a Cisco cabinet. ATM switching service module (AXSM) Processor switching module (PXM45/B or PXM45/C) Route processor modulepremium (RPM-PR) MGX 8950 Card Compartment MGX 8950 Slot Assignments MGX 8950 Cards Supported MGX 8950 System Hardware Components Page Page Extender Card Air Intake and Exhaust Plenums Page Page Cable Management Assembly 1-44 DC Power Entry Module Lower and Upper Fan Trays Cisco MGX 8830 or MGX 8830/B Switch Page Applications Interface Support Standards-Based Conversion to ATM MGX 8830 Card Compartment MGX 8830 Slot Assignments 1-49 Figure 1-33 shows slot assignments (rear view) for the MGX 8830 or MGX 8830/B switc h. MGX 8830 Cards Supported MGX 8830 System Hardware Components Page Page Page DC Power Entry Module (PEM) Fan Tray Page MGX 8830/B Redundancy Connector Cisco MGX 8880 Media Gateway Voice Switch Service Module Overview MGX 8880 Media Gateway Overview Features and Benefits MGX 8880 Card Compartment 1-61 MGX 8880 Slot Assignments 1-62 Figure 1-44 shows slot assignments (rear view) for the Cisco MGX 8880 Media Gateway. covered by the factory-installed RCON. 1-63 MGX 8880 Cards Supported Rear The Cisco MGX 8880 Media Gateway supports the following module types: AXSM/E (for T1/E1 only) (existing cards as of Release 5) AXSM/B (T3/E3 to OC-48) (existing cards as of Release 5) Page Page MGX 8880 Hardware Components Page Page Page Air Intake Plenum Page DC Power Entry Module (PEM) Exhaust Plenum/Fan Tray MGX 8880 Redundancy Connector How the Built-in MGX 8880 Redundancy Connector Affects Module Configurations Page Illustrated Card List for MGX Switches and the MGX 8880 Media Gateway How to Use the Illustrated Card List Card Naming Conventions Card Organization Finding the Latest Card Information MGX 8850 (PXM45) or MGX 8850/B (PXM45) Card Overview Page MGX 8850 (PXM1E) or MGX 8850/B (PXM1E) Card Overview MGX 8950 Card Overview MGX 8830/B (PXM45/C) Card Overview MGX 8830 or MGX 8830/B (PXM1E) Card Overview MGX 8880 Card Overview PXM45 and AXSM Support for Current and Previous Releases Front Cards AUSM Supported models: MGX 8830, MGX 8830/B, MGX 8850 (PXM1E), MGX 8850 (PXM1E) Page Page AXSM Page Page 2-16 Figure 2-2 shows an example of an AXSM faceplate. 32T1E1 Figure2-2 AXSM Faceplate Example 1ACTActive LED 4PORT x LEDs Page Page Page 2-20 Figure2-5 AXSM-XG Faceplate Example (AXSM-16-155-XG) 16-155-XG 1ACTActive LED 4PORT x LEDs 2STANDBY LED 5RS-232 Port 3FAIL L ED 6Ethernet Port AXSM Page 2-22 Figure 2-6 shows how redundant AXSM cards connect to standalone lines. Figure 2-7 shows how redundant AXSM cards connect to redundant APS lines. CESM Page Page Page FRSM Page Page Page Page Page Page FRSM-12-T3E3 Supported models: MGX 8850 (PXM45), MGX 8850/B (PXM45) 2-35 Figure 2-14 shows a FRSM-12-T3E3 faceplate. Figure2-14 FRSM-12-T3E3 Faceplate 1ACTActive LED 4PORT 1 through PORT 12 LEDs 2STANDBY LED 5T3 and E3 LEDs 3FAIL L ED Page 2-37 Figure 2-15 shows how redundant FRSM-12-T3E3 cards connect to standalone lines . 2-38 MPSM-8-T1E1 8T1E1 Figure2-16 MPSM-8-T1E1 Faceplate MPSM ACT STANDBY FAIL MPSM-T3E3-155 Page Page MPSM-16-T1E1 Page Page 2-45 Figure2-18 MPSM-16-T1E1 Faceplate 16T1E1 PXM1E Supported models: MGX 8830, MGX 8830/B, MGX 8850 (PXM1E), MGX 8850/B (PXM1E) MPSM 5 6 Page Page Page 2-49 Figure 2-19 shows how redundant PXM1Es connect to standalone lines. Figure 2-20 shows how redundant PXM1Es connect to redundant APS lines. Page Page 2-52 PXM1E-4-155 4-155 Figure 2-22 shows a PXM1E-4-155 faceplate. Tabl e 2-23 contains LED descriptions. Figure2-22 PXM1E-4-155 Faceplate 1CRITICAL, major, and minor alarm LEDs PXM1E-8-155 8-155 Figure 2-23 shows a PXM1E-8-155 faceplate. Tabl e 2-23 contains LED descriptions. Figure2-23 PXM1E-8-155 Faceplate 1CRITICAL, major, and minor alarm LEDs PXM1E-8-T3E3 8-T3E3 5History LED (HIST) 10 PORT 1 through PORT 8 LEDs Figure 2-24 shows a PXM1E-8-T3E3 faceplate. Table 2-2 3 contains LED descriptions. Figure2-24 PXM1E-8-T3E3 Faceplate PXM1E-16-T1E1 5History LED (HIST) 10 PORT 1 through PORT 16 LEDs Figure 2-25 shows a PXM1E-16-T1E1 faceplate. Table 2-2 3 contains LED descriptions. Figure2-25 PXM1E-16-T1E1 Faceplate 1T1 and E1 LEDs 6Ethernet LED (ENET) 2CRITICAL, major, and minor alarm LEDs PXM1E-COMBO COMBO 5History LED (HIST) 10 PORT 1 through PORT 12 LEDs Figure2-26 PXM1E-COMBO Faceplate (PXM1E-T3E3-155) 1T3 and E3 LEDs 6Ethernet LED (ENET) 2CRITICAL, major, and minor alarm LEDs PXM45 PXM45 Support on MGX 8850 (PXM45) or MGX 8850/B (PXM45) PXM45 Support on MGX 8950 Page 2-60 Figure 2-28 shows a PXM45/C faceplate. Figure2-28 PXM45/C Faceplate Page RPM-PR Page Page RPM-XF Page 2-67 Figure 2-30 shows an RPM-XF faceplate. Tab le 2-28 contains LED descriptions. Figure2-30 RPM-XF Faceplate 1CPU OK LED 3CB RX LED 2CB TX LED 4LM1 OK and LM2 OK LEDs SRM Supported models: MGX 8850 (PXM1E/PXM45), MGX 8850/B (PXM1E/PXM45), MGX 8830, MGX 8830/B, MGX 8880 SRM-3T3/C Page SRME Page SRME/B Supported models: MGX 8850 (PXM1E/PXM45), MGX 8850/B (PXM1E/PXM45), MGX 8830, MGX 8830/B, MGX 8880 Module Configurations Page Bit Error Rate Testing Upgrading SRM-3T3 to SRME/B Page VISM-PR Supported models: MGX 8850 (PXM1E/PXM45), MGX 8850/B (PXM1E/PXM45), MGX 8880 Page Page VXSM Supported models: MGX 8850 (PXM45), MGX 8850/B (PXM45), MGX 8880 Front Cards Back Cards Page Page Card Slots Page Page Page Page VXSM OC-3/STM-1 Interface VXSM T1/E1 Interface VXSM T3 Interface XM60 Supported models: MGX 8950 Page 2-91 Figure 2-41 shows the XM60 faceplate. Figure2-41 XM60 Faceplate Active (steady green) Fail (steady red) Back Cards Back Cards for MGX 8850 (PXM1E/PXM45) or MGX 8850 (PXM1E/PXM45) Switches Back Cards for MGX 8950 Switches Page Back Cards for MGX 8830 Switches Back Cards for MGX 8880 Media Gateway Page 12IN1-8S BNC-2E3 BNC-2T3 2-101 BNC-3-T3E3 Figure2-45 BNC-3-T3E3 Faceplate 1Enable (ENBL) LED 3RX and TX BNC female connectorsPORT 1, 2, 3 2T3 or E3 Mode LEDs 4RED LM ON BNC-3-T3E3 RED LM ON BNC-3T3-M MCC-8-155 MCC-16-E1 MCC-16-E1-1N Page MGX-1GE Page MGX-2GE MGX-1OC12POS-IR MGX-2OC12POS-IR MGX-RJ45-5-ETH MGX-RJ48-8E1 MGX-XF-UI MGX-XF-UI/B Page 2-116 MMF-4-155/C Figure2-59 MMF-4-155/C Faceplate 3RX and TX SC connectors for PORT 1 GreenThe back card is receiving a MMF-4-155/C MMF-8-155-MT and MMF-8-155-MT/B on the front of each faceplate. Figure2-60 MMF-8-155-MT and MMF-8-155-MT/B Faceplate 28 SONET/SDH OC-3c/STM-1 interface MTRJ connectors 8-155 MT/B MMF-FE PXM-HD PXM-UI-S3 and PXM-UI-S3/B Release Compatibility Information for PXM-UI-S3 Cards Page Page RBBN-16-T1E1 RBBN-16-T1E1-1N E1 ENBL T1 RED-16-T1E1 2-126 Figure2-67 RED-16-T1E1 2-127 RJ45-4E/B carrier signal from the network. Figure 2-68 RJ45-4E/B Faceplate 3PORT 1 through PORT 4 RJ-45 connectors 2LINK LEDs GreenThe back card is receiving a RJ45-FE RJ48-8E1 and R-RJ48-8E1 RJ48-8T1 and R-RJ48-8T1 SCSI2-2HSSI/B SFP-2-155 Page SFP-8-155 Page SMB-2-155-EL SMB-4-155 SMB-6-T3E3 2-139 SMB-8E1 and R-SMB-8E1 Figure 2-78 SMB-8E1 and R-SMB-8E1 Faceplates 2RX and TX SMB female connectors for PORT1 through PORT 8 SMB-8E1 R-SMB-8E1 SMB-8E3 SMB-8T3 SMFIR-1-155 SMFIR-1-622/C SMFIR-2-622 and SMFIR-2-622/B 2-145 SMFIR-4-155/C Figure2-84 SMFIR-4-155/C Faceplate 3RX and TX SC connectors for PORT 1 GreenThe back card is receiving a SMFIR-4-155/C SMFIR-8-155-LC and SMFIR-8-155-LC/B SMFLR-1-2488 and SMFLR-1-2488/B SMFLR-1-622/C SMFLR-2-622 and SMFLR-2-622/B 2-150 SMFLR-4-155/C Figure2-89 SMFLR-4-155/C Faceplate 3RX and TX SC connectors for PORT 1 GreenThe back card is receiving a SMFLR-4-155/C SMFLR-8-155-LC and SMFLR-8-155-LC/B SMFSR-1-2488 and SMFSR-1-2488/B SMFSR-1-9953 TX RX SMFXLR-1-2488 and SMFXLR-1-2488/B STM1-EL-1 T3E3-155 Page VXSM-BC-4-155 VXSM-BC-24-T1E1 Page VXSM-BC-3T3 VXSM-R-BC Page Preparing for Installation Safety Requirements Safety and Equipment Precautions 3-3 3-4 Working Safely with Electricity DC Power Guidelines for MGX Switches MGX 8850 and MGX 8850/B DC Amp Requirements MGX 8950 DC Amp Requirements MGX 8830 and MGX 8830/B DC Amp Requirements Preventing ESD Damage General Card Installation Guidelines Card Installation and Replacement Suggestions Hot Swapping Cards and Modules Card Installation Guidelines Side viewTop view How Cisco MGX Systems are Shipped Site Requirements for the MGX 8850 or MGX 8850/B Switch Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Site Requirements for the MGX 8950 Switch Page Page 3-31 Page Page Page Page Page Page Page Page Page Site Requirements for a MGX 8830 or MGX 8830/B Switch Page Page Page Page Page Page Page Page Page Page Page Page Page Site Requirements for the MGX 8880 Media Gateway Page Page Page Page Page Page Page Page Page Page Page Page Page Rack-Mounting Requirements Unpacking the Box Verifying Contents Inspecting for Damage Planning for Card Redundancy, Line Redundancy, and Bulk Distribution Page Planning Standalone and Redundant Card Configurations Standalone Card Configuration Guidelines 1:1 Redundant Card Configuration Guidelines Preconfigured Redundancy (PXM and SRM) Page Configured 1:1 Card Redundancy 1:N Redundant Card Configuration Guidelines (Except RPM) 1:N Redundancy without Bulk Distribution 1:N Redundancy with Bulk Distribution 1:N Redundant Card Configuration Guidelines (RPM Only) Planning for Standalone and Redundant Line Configurations Standalone Line Configuration Guidelines Standalone Card Configurations 1:1 Redundant Card Configurations Page 1:N Redundant Card Configurations (Except RPM) 1:N Redundant RPM Configurations Redundant Line Configuration Guidelines Intracard APS Configurations Page Intercard APS Configurations Page Page Planning for Bulk Distribution Planning for Advanced Software Features Inverse Multiplexing over ATM (IMA) ConfigurationsMGX 8830, MGX 8850 (PXM45), and MGX 8850 (PXM1E) Page Installing the Cisco MGX Switch or Gateway Installing the MGX 8850 (PXM1E/PXM45) Switch, MGX 8850/B or MGX 8880 Media Gateway Page Page Special Installation Notes for the MGX 8880 Media Gateway Page MGX 8850 and MGX 8880 Installation Page 5-8 Complete the following steps to anchor your Cisco cabinet to a stabi lity plate: C L Page Page Page Page 5-13 Page Page Page Remove the AC Power Supplies from the AC Power Supply Tray Install the AC Power Supply Tray(s) Reinstall the AC Power Supplies Install the Air Intake Plenum Install the Lower Fan Tray Install the MGX 8850 or MGX 8850/B Switch without a Mechanical Lift Page Page Install the Switch in the Rack Page Page Page Page Page Install the MGX 8850 or MGX 8850/B Switch with a Mechanical Lift Page Install the Upper Fan Tray Install the Exhaust Plenum Install the DC PEM(s) Page Connect the Fan Tray Power Cables to the Cisco MGX 8850 or MGX 8850/B Switch Page Connect the AC Power Supply Tray to the MGX 8850 or MGX 8850/B Switch Page Connect the DC PEM to the MGX 8850 or MGX 8850/B Switch Page Page 5-42 Installing the MGX 8850 (PXM1E/PXM45) Switch, MGX 8850/B or MGX 8880 Media Gateway Figure5-26 Workstation Connection to the Console Port Figure5-25 Routing Data Cables Cable manager Connect Power to the MGX 8850 or MGX 8850/B Switch Page Page Page Page 5-48 Installing the MGX 8850 (PXM1E/PXM45) Switch, MGX 8850/B or MGX 8880 Media Gateway section on page 5-133. Figure5-31 Ethernet Connection to the LAN 1 Port Note The LAN 2 port in Figure5-31 is not enabled. Installing the MGX 8950 Switch Page Page Page C L Page Page Page Page 5-58 additions, keeping in mind the weight distribution and stability of therack. Page Page Remove the AC Power Supplies from the AC Power Supply Tray Install the AC Supply Power Tray(s) Reinstall the AC Power Supplies Install the Air Intake Plenum Install the Lower Fan Tray Install the MGX 8950 Switch without a Mechanical Lift Page Page Install the Switch in the Rack Page Page Page Page Page Install the MGX 8950 Switch with a Mechanical Lift Page Install the Upper Fan Tray Install the Exhaust Plenum 5-77 rack, and use screws to secure the fan tray to the rear-mounting brackets. Install the DC PEM(s) Connect the Fan Tray Power Cables to the MGX 8950 Switch Page Connect the AC Power Supply Tray to the MGX 8950 Switch Page Page 5-83 Connect the DC PEM to the MGX 8950 Switch Page Page 5-87 Page 5-89 Installing the MGX 8950 Switch Figure5-55 Workstation Connection to the Console Port Figure5-54 Routing Data Cables Cable manager Connect Power to the MGX 8950 Switch Page Page Page Page Page Page 5-97 Installing the MGX 8950 Switch section on page 5-133. Figure5-64 Ethernet Connection to the LAN 1 Port Note The LAN 2 port in Figure5-64 is not enabled. Installing the MGX 8830 or MGX 8830/B Switch Page Page Page 5-102 Figure5-65 MGX 8830 Stability Plate Dimensions C L Page Page Page Page Page Page Install the AC Power Supply Tray(s) Install the MGX 8830 Switch without a Mechanical Lift Page Page Remove the DC PEM(s) Install the Switch in the Rack or Cabinet Page Page Page Page Reinstall the DC PEM(s) Install the MGX 8830 Switch with a Mechanical Lift Page Page Page Connect the AC Power Supply Tray to the MGX 8830 Switch Page Page 5-125 Figure5-78 Workstation Connection to the Console Port Table5-8 Terminal Settings 5-126 The CP connection can also be set up through a terminal server, as shown in Figure 5-79. Connect Power to the MGX 8830 Switch The section provides the following installation procedures for connecting power to the switch: Statement 264 Terminal server Serial, LAN, or dial-up connection Page Page Page Page 5-131 Note This step is optional. Modem Figure5-84 Modem Connection to the Maintenance Port For further information about server management and configuration setup, refer to the appropriate 5-132 Note This step is optional. Figure5-85 Ethernet Connection to the LAN 1 Port Note The LAN 2 port in Figure5-85 is not enabled. For further information about server management and configuration setup, refer to the appropriate Installing the Ferrite Bead on the PXM-UI-S3/B Card How to Install the Ferrite Bead 5-134 Installing the Ferrite Bead on the PXM-UI-S3/B Card Figure 5-87 How to Open the Ferrite Bead snap firmly shut (see Figure5-88). connector. Installing the Ferrite Bead on Ribbon Connectors Install the Ferrite Bead ENBL E1 T1 First Time Power On Procedure for MGX Switches Prerequisites Tools Required General Power On Sequence and Checkout Specific Power On Sequence and Checkout Page Page Maintaining the Cisco MGX Switch or Gateway Swapping a Primary or Redundant DC Power Entry Module with Power On Page Removing and Installing the Double-Height Front Cards Remove the Double-Height Front Cards How Most Card Levers Work How VXSM Card Levers Work Page Install the Double-Height Front Cards Removing and Installing the Single-Height Front Cards Remove the Single-Height Front Cards Install the Single-Height Front Cards Removing and Installing the Back Cards Remove the Back Cards Install the Back Cards Removing and Installing Back Card Transceivers Remove the Back Card Transceivers Install the Back Card Transceivers Replacing the Air Intake Plenum Filter Scheduled Maintenance of the Air Filter Replacing the Filter Removing the Center Guide Modules Page Page Connecting the Back Cards to the APS Connector Page Installing the APS Assembly in the Switch Page Removing the Back Cards from an APS Assembly Replacing Processor Cards Installing or Removing Redundancy Connectors When to Install or Remove RCONs Installing MGX 8850/B Redundancy Connectors Page Installing MGX 8830/B Redundancy Connectors Page Page Removing Redundancy Connectors Installing and Removing the AXSM-XG Extender Connector Installing the Extender Connector Page Removing the Extender Connector Page A Front Card Specifications Single-Height Service Module Specifications Double-Height Service Module Specifications PXM1E Specifications Page PXM45 Specifications Page RPM-PR Specifications RPM-XF Specifications SRM Specifications Page Page B Cable Specifications Notes about Cables and Connectors Cable and Connector Naming Conventions Cable Lengths Standard Cisco MGX 8850 (PXM1E/PXM45), MGX 8850/B, and MGX 8880 Cables Standard Cisco MGX 8950 Cables Control and Clock Cabling Maintenance and Control Ports Procedure to Connect a Modem to the Maintenance Port Null Modem Cable Pin Assignments for RJ-48 Maintenance and Control Ports External Clock Input Cabling Cable Specifications for Y-Cables and Cable Adapters for Clocking T1/E1 Clock Input Cable Information Building Integrated Timing Supply (BITS) Clock Connector Pin Assignments Connect the External Clock Using an RJ-45 Connection Connect the External Clock Using a Wire-Wrap Adapter Page External Alarm Cabling Alarm Cable Information Alarm Cable Information for MGX Switches Alarm Connector Pin Assignments Connector Pin Functions for Audio and Visual Alarms Pin States for Each Alarm State Power Cabling AC Power CablingMGX 8850 (PXM1E/PXM45), MGX 8850/B and MGX 8880 AC Power CablingMGX 8950 AC Power CablingMGX 8830 and MGX 8830/B DC Power Cabling DC Power Connections Redundancy Y-Cable Y Cables for MGX 8850 (PXM1E/PXM45), MGX 8850/B and MGX 8880 Y Cables for MGX 8950 Trunk Cabling T3 Trunk Cabling E3 Trunk Cabling Frame Relay Cabling T1 Cabling Page E1 Cabling MGX-12IN1-S8 Back Card Cables Page Page MGX-SCSI2-2HSSI/B Port Connectors Illustrated Cable Guide B-23 List of Cables by Front and Back Card Type TableB-30 List of Cables by Front and Back Card Types Back Card APS or SFP B-24 Back Card APS or SFP B-25 Back Card APS or SFP B-26 Back Card APS or SFP B-27 Back Card APS or SFP B-28 Back Card APS or SFP B-29 Back Card APS or SFP B-30 Back Card APS or SFP B-31 Back Card APS or SFP B-32 Back Card APS or SFP B-33 Back Card APS or SFP B-34 Back Card APS or SFP B-35 List of Cables Illustrated in this Appendix Back Card APS or SFP TableB-31 Location of Cable Illustrations in This Appendix CAB-MMF-LC CAB-MMF-LC-Y CAB-RBBN-16-T1E1 CAB-RBBN-16T1E1-Y CAB-RBBN-16T1E1 Cable Connector Pin Assignments CAB-SMFIR-LC Page Page C Earthing and Bonding Recommendations Scope EC [3] Definitions K.27 Definitions Page Bonding Networks Digital System Grounding Page Bonding and Grounding the Cisco MGX System Bonding and Grounding MGX 8800 or MGX 8900 Series Chassis in a Rack Wiring a Mixed Ground System with Redundant Supplies C-10 Conductor Characteristics for Carrying Current and Ensuring Low Voltage Drops Page D Guide to Transceivers (SFPs) Used with MGX Back Cards Page GLOSSARY A B C D E F G I K L M O P R S T U V W X INDEX Numerics A B C D E F G H I K L M module configurations for MGX 8880 N O P R S T U V W X