Table Of Contents
Channelized and Electrical Interface Line Card Installation and Configuration
Channelized and Electrical Interface Line Card Product Numbers
Cisco IOS Software Release Requirements
Hardware Revision Requirements
AC-Input Power Supply Requirements
1-Port Channelized OC-12/STM-4 (DS1/E1) ISE Line Card Product Overview
1-Port Channelized OC-48/STM-16 ISE Line Card Product Overview
4-Port Channelized OC-12/STM-4 ISE Line Card Product Overview
1-Port Channelized OC-12/STM-4 (OC-3) Line Card Product Overview
1-Port Channelized OC-12/STM-4 (DS3) Line Card Product Overview
2-Port Channelized OC-3/STM-1 (DS1/E1) Line Card Product Overview
6-Port Channelized T3 (T1) Line Card Product Overview
6-Port and 12-Port DS3 Electrical Interface Line Card Product Overview
6-Port and 12-Port E3 Electrical Interface Line Card Product Overview
Preventing Electrostatic Discharge
Removing and Installing a Line Card
Guidelines for Line Card Removal and Installation
Line Card Cable-Management Bracket
Removing a Line Card Cable-Management Bracket
Installing a Line Card Cable-Management Bracket
Power Budget and Signal Specifications
1-Port Channelized OC-12/STM-4 (DS1/E1) ISE Line Card Power Specifications
1-Port Channelized OC-48/STM-16 ISE Line Card Power Specifications
4-Port Channelized OC-12/STM-4 ISE Line Card Power Specifications
1-Port Channelized OC-12/STM-4 (OC-3) Line Card Power Specifications
1-Port Channelized OC-12/STM-4 (DS3) Line Card Power Specifications
2-Port Channelized OC-3/STM-1 (DS1/E1) Line Card Power Specifications
Verifying and Troubleshooting the Line Card Installation
1-Port Channelized OC-12/STM-4 (DS1/E1) ISE Line Card LEDs
1-Port Channelized OC-48/STM-16 ISE Line Card LEDs
4-Port Channelized OC-12/STM-4 ISE Line Card LEDs
1-Port Channelized OC-12/STM-4 (OC-3) Line Card LEDs
1-Port Channelized OC-12/STM-4 (DS3) Line Card LEDs
2-Port Channelized OC-3/STM-1 (DS1/E1) Line Card LEDs
6-Port Channelized T3 (T1) Line Card LED
6-Port and 12-Port DS3 Line Card LED
6-Port and 12-Port E3 Line Card LED
Troubleshooting the Installation
Configuring and Troubleshooting Line Card Interfaces
Configuring the 1-Port Channelized OC-12/STM-4 (DS1/E1) ISE Line Card
Available Configurations for the 1-Port Channelized OC-12/STM-4 (DS1/E1) ISE Line Card
Configuring the 1-Port Channelized OC-12/STM-4 (OC-3) Line Card
Configuring the 1-Port Channelized OC-12/STM-4 (DS3) Line Card
Configuring the 2-Port Channelized OC-3/STM-1 (DS1/E1) Line Card
Configuring the 6-Port Channelized T3 (T1) Line Card
Identifying 6CT3 T1 and T3 Interface Port Numbers and Addresses
Configuring the 6-Port Channelized T3 (T1) Line Card Controller
Configuring the 6-Port and 12-Port DS3 Line Card Controller
Configuring the 6-Port and 12-Port E3 Line Card Controller
Advanced Line Card Troubleshooting
Checking the Current Status of the Line Card
Line Card Alarm and Event Detection
Line Card Diagnostics Using Cisco IOS Software Releases Prior to 12.0(22)S
Line Card Diagnostics Using Cisco IOS Software Release 12.0(22)S and Later
Engine 0 and Engine 1 Line Card Memory Locations
ISE Line Card Memory Locations
Removing and Installing Line Card Memory
Checking the Installation of Line Card Memory
Regulatory, Compliance, and Safety Information
Translated Safety Warnings and Agency Approvals
Electromagnetic Compatibility Regulatory Statements
Class A Notice for Taiwan and Other Traditional Chinese Markets
VCCI Compliance for Class B Equipment
Obtaining Technical Assistance
Obtaining Additional Publications and Information
Channelized and Electrical Interface Line Card Installation and Configuration
Document Order Number: DOC-7816417=
This hardware installation and configuration note contains instructions for installing, configuring, and troubleshooting channelized and electrical interface line cards on Cisco 12000 Series Routers.
Contents
This installation and configuration note includes the following sections:
•
Removing and Installing a Line Card
•
Line Card Cable-Management Bracket
•
Verifying and Troubleshooting the Line Card Installation
•
Configuring and Troubleshooting Line Card Interfaces
•
Regulatory, Compliance, and Safety Information
•
Obtaining Technical Assistance
•
Obtaining Additional Publications and Information
Important Information
This section contains important information about the following topics:
•
Channelized and Electrical Interface Line Card Product Numbers
•
Cisco IOS Software Release Requirements
•
Hardware Revision Requirements
•
AC-Input Power Supply Requirements
Channelized and Electrical Interface Line Card Product Numbers
Table 1 lists the Cisco product numbers to which this publication applies.
Router Hardware Installation
For Cisco 12000 Series Router hardware installation and configuration information, refer to the installation and configuration guide for your router. The guide includes information on the router switch fabric and how it affects the operation of line cards, as well as line card slot locations, slot width, and other requirements.
Supported Platforms
The channelized and electrical interface line cards are supported on all Cisco 12000 Series Routers.
Note
To support the requirements of this line card, the Cisco 12000 Series Router must have at least one clock and scheduler card (CSC) installed. For additional information, refer to the installation and configuration guide for your Cisco 12000 Series Router.
Cisco IOS Software Release Requirements
For software configuration information, refer to the Cisco IOS software configuration and command reference publications for the installed Cisco IOS release. Also refer to the Cisco IOS software release notes for additional information.
Table 2 lists the Cisco IOS releases that are compatible with channelized and electrical interface line cards.
The show version and show hardware commands display the current hardware configuration of the router, including the system software version that is currently loaded and running. For complete descriptions of show commands, refer to the Cisco IOS Configuration Fundamentals Configuration Guide and the Cisco IOS Configuration Fundamentals Command Reference for the installed Cisco IOS release.
Hardware Revision Requirements
To ensure compatibility with the software, your channelized and electrical interface line card should have a specific hardware revision number. The number is printed on a label affixed to the component side of the card. The hardware revision number can be displayed by using the show diags slot-number command.
Table 3 lists the hardware revision number for all channelized and electrical interface line cards.
AC-Input Power Supply Requirements
In order to use any of the ISE channelized line cards in the Cisco 12008 Internet Router, the AC-input power supply must have the part number PWR-GSR8-AC-B. If the AC-input power supply part number is 34-0820-01, you must upgrade the AC-input power supply. Refer to the Cisco 12008 Gigabit Switch Router AC-Input Power Supply Replacement Instructions publication.
This requirement applies to the following line cards:
•
1-Port Channelized OC-12/STM-4 (DS1/E1) ISE line card
•
1-Port Channelized OC-48/STM-16 ISE line card
•
4-Port Channelized OC-12/STM-4 ISE line card
To determine which AC-input power supply is installed in the Cisco 12008 Internet Router, enter the show diags command. This command provides the part number of the AC-input power supply that is installed in slot 26 of the router. To determine what slot the power supply is installed in, use the show diags summary command.
Router> show diags 26Line Card Memory Options
The channelized and electrical interface line card memory options vary by line card. See the "Line Card Memory" section for more information.
Related Documentation
This publication describes the basic installation and initial configuration of a channelized and electrical interface line card. For complete configuration information, refer to the following publications:
•
Cisco IOS Software Configuration for the Cisco 12000 Series 1-Port Channelized OC-12c/STM-4 (DS1/E1) Line Card
•
Installation and Configuration Guide for your router
•
Software Configuration Guide for the Cisco 12000 Series Internet Router
•
Cisco IOS Configuration Fundamentals Configuration Guide
•
Cisco IOS Configuration Fundamentals Command Reference
•
Cisco IOS Release 12.0S Release Notes for Cisco 12000 Series Internet Routers
•
Field Diagnostics for the Cisco 12000 Series Internet Router
•
Regulatory Compliance and Safety Information for Cisco 12000 Series Internet Routers
See the "Obtaining Documentation" section for information on how to obtain these publications.
Product Overview
This section includes product overview information for each channelized and electrical interface line card:
•
1-Port Channelized OC-12/STM-4 (DS1/E1) ISE Line Card Product Overview
•
1-Port Channelized OC-48/STM-16 ISE Line Card Product Overview
•
4-Port Channelized OC-12/STM-4 ISE Line Card Product Overview
•
1-Port Channelized OC-12/STM-4 (OC-3) Line Card Product Overview
•
1-Port Channelized OC-12/STM-4 (DS3) Line Card Product Overview
•
2-Port Channelized OC-3/STM-1 (DS1/E1) Line Card Product Overview
•
6-Port Channelized T3 (T1) Line Card Product Overview
•
6-Port and 12-Port DS3 Electrical Interface Line Card Product Overview
•
6-Port and 12-Port E3 Electrical Interface Line Card Product Overview
1-Port Channelized OC-12/STM-4 (DS1/E1) ISE Line Card Product Overview
The 1-port channelized OC-12/STM-4 (DS1/E1) ISE line card provides Cisco 12000 Series Routers with a single OC-12c/STM-4c to DS1/E1 full-duplex, single-mode, intermediate-reach interface. Figure 1 shows the front view of this line card.
Figure 1 1-Port Channelized OC-12/STM-4 (DS1/E1) ISE LIne Card
1-Port Channelized OC-48/STM-16 ISE Line Card Product Overview
The 1-port channelized OC-48/STM-16 ISE line card provides Cisco 12000 Series Routers with a single OC-48c/STM-16c port that can be channelized to DS3/E3, OC-3c/STM-1c, or OC-12c/STM-4c. The line card supports both SONET and SDH framing and provides DS-3/E3 aggregation for the Cisco 12000 Series Router. For SDH, both AU-3 and AU-4 mappings are supported. Table 4 lists the mappings and channelization that are supported on the 1-port channelized OC-48/STM-16 ISE line card.
Table 4 Supported Mappings and Channelization
SONET Channelization SDH-AU3 Channelization SDH-AU4 ChannelizationSTS-12c
STM-4
STM-4
STS-3c
STM-1
STM-1
STS-1:DS-31
STM-1 and AU3:VC-3:DS-3/E31
STM-1 and AU4:TUG3:VC3:DS-3/E31
1 Combination of these.
The line card interfaces with the Cisco 12000 Series Router switch fabric and provides a full-duplex SC single-mode, short-reach optical interface. Figure 2 shows the front view of this line card.
Figure 2 1-Port Channelized OC-12/STM-4 (DS1/E1) ISE Line Card
4-Port Channelized OC-12/STM-4 ISE Line Card Product Overview
The 4-Port Channelized OC-12/STM-4 ISE line card provides Cisco 12000 Series Routers with four OC-12c/STM-4c ports that can be channelized to DS3/E3, OC-3c/STM-1c, or OC-12c/STM-4c. The line card supports both SONET and SDH framing and provides DS-3/E3 aggregation for the Cisco 12000 Series Router. For SDH, both AU-3 and AU-4 mappings are supported. Table 4 lists the mappings and channelization that are supported on the 1-port channelized OC-48/STM-16 ISE line card.
The line card interfaces with the Cisco 12000 Series Router switch fabric and provides four full-duplex SC single-mode, intermediate-reach optical interfaces. Figure 3 shows the front view of this line card.
Figure 3 4-Port Channelized OC-12/STM-4 ISE Line Card
1-Port Channelized OC-12/STM-4 (OC-3) Line Card Product Overview
The 1-port channelized OC-12/STM-4 (OC-3) line card provides Cisco 12000 Series Routers with a single 622-Mbps OC_12/STM-4 port that can be channelized to four high-density STS-3/STM-1 interfaces. The line card interfaces with the Cisco 12000 Series Router switch fabric and provides one full-duplex SC single-mode, intermediate-reach optical interface. Figure 4 shows the front view of this line card.
Figure 4 1-Port Channelized OC-12/STM-4 (OC-3) Line Card
1-Port Channelized OC-12/STM-4 (DS3) Line Card Product Overview
The 1-port channelized OC-12/STM-4 (DS3) line card provides 12 channels of DS3 multiplexed over a single 622-Mbps OC-12/STM-4 port. The 1-port channelized OC-12/STM-4 (DS3) line card interfaces through an Add Drop Multiplexer (ADM) with other DS3 line cards at DS3 line rates in a configuration that usually consists of a Cisco 7200 Series Router and a Cisco 7500 Series Router configured with the packet-over-E3/T3 (POET) port adapter, or a third-party T3 data service unit (DSU) such as Digital Link, Larscom, or Kentrox.
The 1-port channelized OC-12/STM-4 (DS3) line card interfaces with the Cisco 12000 Series Router switch fabric and provides one OC-12/STM-4 duplex SC single-mode intermediate-reach Synchronous Optical Network (SONET) connection. Figure 5 shows the front view of this line card.
Figure 5 1-Port Channelized OC-12/STM-4 (DS3) Line Card
2-Port Channelized OC-3/STM-1 (DS1/E1) Line Card Product Overview
The 2-port channelized OC-3/STM-1 (DS1/E1) line card provides E1/DS1 aggregation for the Cisco 12000 Series Router. The 2-port channelized OC-3/STM-1 (DS1/E1) line card interfaces with the router switch fabric and provides two OC-3/STM-1 duplex SC single-mode intermediate-reach optical interfaces.
When configured for operation in a Synchronous Digital Hierarchy (SDH) environment, each STM-1 port is capable of supporting channelization into either 63 independent E1s through VC-12 ETSI mapping, or 84 J1 (Japanese T1 equivalent) channels through VC-11 ANSI mapping.
When configured for operation in a Synchronous Optical Network (SONET) environment, each OC-3 port is capable of supporting channelization into 84 independent DS1 channels using VT1.5 mapping or CT3 mapping into STS-1.
Fractional E1 and individual 64-kbps channels can also be configured, up to the limit of 105 channel definitions per STM-1 (35 per TUG-3). Fractional T1 and individual DS0 channels can also be configured, up to the limit of 35 channel definitions per STS-1 (210 per line card).
Each 2-port channelized OC-3/STM-1 (DS1/E1) line card supports up to 126 E1s when configured for SDH operation, 168 DS1 connections when configured for SONET operation, or any combination of 64 kbps/DS0, fractional E1/T1, or E1/T1 interface definitions, up to the limit of 210 per line card.
Figure 6 shows the front view of this line card.
Figure 6 2-Port Channelized OC-3/STM-1 (DS1/E1) Line Card
6-Port Channelized T3 (T1) Line Card Product Overview
The 6-port channelized T3 (T1) line card performs High-Level Data Link Control (HDLC) encapsulation and de-encapsulation functions, and all other necessary functions including timing, signaling, and framing in compliance with DS1 and DS3 specifications.
Figure 7 shows the front view of this line card.
Figure 7 6-Port Channelized T3 (T1) Line Card
1Ejector lever (one at each end)
5Alphanumeric LEDs
2LED legend
6Green
3Port 0
7Alternates green/yellow
4Status LEDs
8Yellow
6-Port and 12-Port DS3 Electrical Interface Line Card Product Overview
The 6-port and 12-port DS3 electrical interface line cards consist of high-density DS3 service through six T3 or twelve T3 interfaces.
The 6-port line card is a partially depopulated version of the 12-port line card. The 6-port line card consists of a total of 12 connectors. A single port consists of one coaxial connector for receiving (RX) and one coaxial connector for transmitting (TX). The ports on the 6-port line card are numbered 0 to 5.
The 12-port line card consists of a total of 24 connectors. A single port consists of one coaxial connector for receiving (RX) and one coaxial connector for transmitting (TX). The ports on the 12-port line card are numbered 0 to 11.
Figure 8 shows the front view of these line cards.
Figure 8 6-Port and 12-Port DS3 Line Cards
1Ejector lever (one at each end)
5Alphanumeric LEDs
2LED legend
6Green
3Port 0
7Alternates green/yellow
4Status LEDs
8Yellow
6-Port and 12-Port E3 Electrical Interface Line Card Product Overview
The 6-port and 12-port E3 electrical interface line cards consist of high-density E3 service through six E3 or twelve E3 interfaces.
The 6-port line card is a partially depopulated version of the 12-port line card. The 6-port line card consists of a total of 12 connectors. A single port consists of one coaxial connector for receiving (RX) and one coaxial connector for transmitting (TX). The ports on the 6-port line card are numbered 0 to 5.
The 12-port line card consists of a total of 24 connectors. A single port consists of one coaxial connector for receiving (RX) and one coaxial connector for transmitting (TX). The ports on the 12-port line card are numbered 0 to 11.
Figure 9 shows the front view of these line cards.
Figure 9 6-Port and 12-Port E3 Line Cards
1Ejector lever (one at each end)
5Alphanumeric LEDs
2LED legend
6Green
3Port 0
7Alternates green/yellow
4Status LEDs
8Yellow
Preparing for Installation
Installation preparation is presented in the following sections:
•
Preventing Electrostatic Discharge
Safety Guidelines
Before you perform any procedure in this publication, review the safety guidelines in this section to avoid injuring yourself or damaging the equipment.
The following guidelines are for your safety and to protect equipment. The guidelines do not include all hazards. Be alert.
Note
Review the safety warnings listed in the Regulatory Compliance and Safety Information for Cisco 12000 Series Internet Router publication (Document Number 78-4347-xx) that accompanied your router before installing, configuring, or maintaining a line card.
•
Keep the work area clear and dust free during and after installation. Do not allow dirt or debris to enter into any laser-based components.
•
Do not wear loose clothing, jewelry, or other items that could get caught in the router while working with line cards.
•
Cisco equipment operates safely when it is used in accordance with its specifications and product usage instructions.
See the "Line Card Interface Cables" section for information on interface cables.
Preventing Electrostatic Discharge
Electrostatic discharge (ESD) damage, which can occur when electronic cards or components are improperly handled, results in complete or intermittent failures. Electromagnetic interference (EMI) shielding is an integral component of the line card. Cisco recommends using an ESD-preventive strap whenever you are handling network equipment or one of its components.
The following are guidelines for preventing ESD damage:
•
Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact. Connect the equipment end of the connection cord to an ESD connection socket on the router or to bare metal on the chassis.
•
Handle channelized and electrical interface line cards by the captive installation screws, the provided handle, ejector levers, or the line card metal carrier only; avoid touching the board or connector pins.
•
Place removed channelized and electrical interface line cards board-side-up on an antistatic surface or in a static shielding bag. If you plan to return the component to the factory, immediately place it in a static shielding bag.
•
Avoid contact between the channelized and electrical interface line cards and clothing. The wrist strap only protects the board from ESD voltages on the body; ESD voltages on clothing can still cause damage.
Warning
For safety, periodically check the resistance value of the ESD strap. The measurement should be between 1 and 10 megohms.
Required Tools and Equipment
You need the following tools and parts to remove and install channelized and electrical interface line cards:
•
Flat-blade or Phillips screwdriver
•
ESD-preventive wrist or ankle strap and instructions
•
Interface cables to connect the channelized and electrical interface line card with another router or switch
Removing and Installing a Line Card
The following sections describe the procedures for removing and installing line cards:
•
Guidelines for Line Card Removal and Installation
Note
Some of the procedures in the following sections use illustrations of a Cisco 12012 Internet Router to support the descriptions of removing and installing line cards. Although the card cages of Cisco 12000 Series Routers differ, the designated use of slots and the process of installing and removing a line card are basically the same. Therefore, separate procedures and illustrations are not included in this publication.
Guidelines for Line Card Removal and Installation
Guidelines for line card removal and installation include the following:
•
Online insertion and removal (OIR) is supported, enabling you to remove and install line cards while the router is operating. OIR is seamless to users on the network, maintains all routing information, and ensures session preservation.
Note
With OIR, notifying the software or resetting the power is not required. However, you have the option of using the shutdown command before removing a line card.
•
After you reinstall a line card, the router automatically downloads the necessary software from the route processor (RP). Next, the router brings online only those interfaces that match the current configuration and were previously configured as administratively up. You must configure all others with the configure command.
CautionThe router may indicate a hardware failure if you do not follow proper procedures. Remove or insert only one line card at a time. Allow at least 15 seconds for the router to complete the preceding tasks before removing or inserting another line card.
After removing and inserting a line card into the same slot, allow at least 60 seconds before removing or inserting another line card.
•
Line cards have two ejector levers to release the card from its backplane connector. Use the levers when you are removing the line card and to seat the line card firmly in its backplane connector when you are installing the line card. The ejector levers align and seat the card connectors in the backplane.
CautionWhen you remove a line card, always use the ejector levers to ensure that the connector pins disconnect from the backplane in the sequence expected by the router. Any card that is only partially connected to the backplane can halt the router.
When you install a line card, always use the ejector levers to ensure that the card is correctly aligned with the backplane connector; the connector pins should make contact with the backplane in the correct order, indicating that the card is fully seated in the backplane. If a card is only partially seated in the backplane, the router will hang and subsequently crash.
Removing a Line Card
If you are replacing a failed line card, remove the existing line card first, then install the new line card in the same slot. To remove a line card, use Figure 10 as a reference and follow these steps:
Step 1
Attach an ESD-preventive wrist or ankle strap and follow its instructions for use.
Step 2
Disconnect and remove all interface cables from the ports; note the current connections of the cables to the ports on the line card.
Step 3
Detach the line card cable-management bracket from the line card.
Step 4
Use a screwdriver to loosen the captive screw at each end of the line card faceplate. (See Figure 10a.)
Figure 10 Line Card Removal and Installation
CautionWhen you remove a line card, always use the ejector levers to ensure that the line card connector pins disconnect from the backplane in the logical sequence expected by the router. Any line card that is only partially connected to the backplane can halt the router.
Step 5
Simultaneously pivot the ejector levers away from each other to release the line card from the backplane connector. (See Figure 10b.)
Step 6
Grasp the ejector levers and pull the line card halfway out of the slot.
Step 7
Grasp the line card and gently pull it straight out of the slot, keeping your other hand under the line card to guide it. (See Figure 10c.) Avoid touching the line card printed circuit board, components, or any connector pins.
Step 8
Place the removed line card on an antistatic mat, or immediately place it in an antistatic bag if you plan to return it to the factory.
Step 9
If the line card slot is to remain empty, install a line card blank (Product Number MAS-GSR-BLANK) to keep dust out of the chassis and to maintain proper airflow through the line card compartment. Secure the line card blank to the chassis by tightening its captive screws.
Installing a Line Card
A line card slides into almost any available line card slot and connects directly to the backplane. If you install a new line card, you must first remove the line card blank from the available slot.
Note
Refer to the installation and configuration guide for your router for information on line card slot types, slot width, and slot location.
CautionThe router may indicate a hardware failure if you do not follow proper procedures. Remove or insert only one line card at a time. Allow at least 15 seconds for the router to complete the preceding tasks before removing or inserting another line card.
To install a line card, follow these steps:
Step 1
Attach an ESD-preventive wrist or ankle strap and follow its instructions for use.
Step 2
Choose an available line card slot for the line card, and verify that the line card interface cable is long enough for you to connect the line card with any external equipment.
CautionTo prevent ESD damage, handle line cards by the captive installation screws, the provided handle, ejector levers, or the card carrier edges only. Do not touch any of the electrical components or circuitry.
Step 3
Grasp the faceplate (or handle) of the line card with one hand and place your other hand under the card carrier to support the weight of the card; position the card for insertion into the card cage slot. Avoid touching the line card printed circuit board, components, or any connector pins.
Step 4
Carefully slide the line card into the slot until the ejector levers make contact with the edges of the card cage, then stop when the ejector lever hooks catch the lip of the card cage. If they do not catch, try reinserting the line card until the ejector lever hooks are fully latched. (See Figure 11.)
Figure 11 Ejector Levers
CautionWhen you install a line card, always use the ejector levers to ensure that the card is correctly aligned with the backplane connector, the card connector pins make contact with the backplane in the correct order, and the card is fully seated in the backplane. A card that is only partially seated in the backplane can cause the router to hang and subsequently crash.
Step 5
Simultaneously pivot both ejector levers toward each other until they are perpendicular to the line card faceplate. This action firmly seats the card in the backplane.
Step 6
Use a 3/16-inch flat-blade screwdriver to tighten the captive screw on each end of the line card faceplate to ensure proper EMI shielding and to prevent the line card from becoming partially dislodged from the backplane.
CautionTo ensure adequate space for additional line cards, always tighten the captive installation screws on each newly installed line card before you insert any additional line cards. These screws also prevent accidental removal and provide proper grounding and EMI shielding for the router.
Step 7
Install the cable-management bracket.
Step 8
Install the interface cables.
Line Card Cable-Management Bracket
Note
The illustrations in this section show various line cards, but the line card cable-management bracket installation procedure is the same regardless of the specific line card.
Cisco 12000 Series Routers include a cable-management system that organizes the interface cables entering and exiting the router, keeping them out of the way and free of sharp bends.
CautionExcessive bending of interface cables can damage the cables.
The cable-management system consists of two separate components:
1.
A cable-management tray that is mounted on the chassis. Refer to the appropriate Cisco 12000 Series Router installation and configuration guide for more information on the cable-management tray.
2.
A cable-management bracket that attaches to a line card.
This section describes the line card cable-management bracket. Figure 12 shows the single-port line card cable-management bracket; Figure 13 shows the multiport line card cable-management bracket.
Figure 12 Single-Port Line Card Cable-Management Bracket
Figure 13 Multiport Line Card Cable-Management Bracket
Note
When shipped with spare line card orders, the cable-management bracket is not attached to the line card. You must attach the cable-management bracket to the line card before you insert the line card into the router.
CautionDo not use the cable-management bracket as a handle to pull out or push in the line card. The cable-management bracket is designed to hold the interface cables and may break if you use the bracket to push, pull, or carry the line card after it is removed from the router.
Removing and installing the line card cable-management bracket is described in the following procedures:
•
Removing a Line Card Cable-Management Bracket
•
Installing a Line Card Cable-Management Bracket
Removing a Line Card Cable-Management Bracket
To remove a line card cable-management bracket, follow these steps:
Step 1
Attach an ESD-preventive wrist or ankle strap and follow its instructions for use.
Step 2
Note the current interface cable connections to the ports on each line card.
Step 3
Starting with the interface cable for the bottom port on the line card, disconnect the cable from the line card interface.
Note
It is not necessary to remove the interface cables from the line card cable-management bracket. The bracket (with attached cables) can be hooked to the cable-management tray or a bracket on the chassis until a new line card is installed.
Step 4
For multiport line card cable-management brackets, proceed upward and remove the interface from the Velcro strap on the end of the cable standoff. (See Figure 14.)
For single-port line card cable-management brackets, carefully remove the interface cable from the cable clip. (See Figure 15.) Avoid any kinks or sharp bends in the cable.
Step 5
Repeat Step 3 and Step 4 for all remaining interface cables, then proceed to Step 6.
Step 6
For multiport line card cable-management brackets, loosen the captive installation screw at each end of the cable-management bracket and remove the bracket from the line card.
For single-port line card cable-management brackets, loosen the captive installation screw on the cable-management bracket and remove the bracket from the line card.
Figure 14 Multiport Line Card Cable-Management Installation and Removal
(4-Port OC-48c/STM-16c DPT Line Card Shown)
Figure 15 Single-Port Line Card Cable-Management Bracket Installation and Removal (1-Port OC-192c/STM-64c DPT Line Card Shown)
Installing a Line Card Cable-Management Bracket
To install a line card cable-management bracket, follow these steps:
Step 1
Attach an ESD-preventive wrist or ankle strap and follow its instructions for use.
Step 2
Attach the line card cable-management bracket to the line card as follows:
a.
Position the cable-management bracket over the front of the line card faceplate.
b.
Insert and tighten the captive screw(s) to secure the bracket to the line card.
c.
Starting with the bottom port on the line card, connect each interface cable to the intended port.
Step 3
For multiport line card cable-management brackets, carefully wrap the cables with the supplied Velcro strap. (See Figure 14.)
For single-port line card cable-management brackets, carefully press the interface cable onto the cable clip. (See Figure 15.) Avoid any kinks or sharp bends in the cable.
For information on disconnecting and connecting interface cables, see the "Line Card Interface Cables" section.
Cabling and Specifications
The following sections provide specifications for the channelized and electrical interface line card:
•
Power Budget and Signal Specifications
Power Budget and Signal Specifications
The SONET specification for fiber-optic transmission defines two types of fiber: single-mode and multimode. Signals can travel farther through single-mode fiber than through multimode fiber.
The maximum distance for installations is determined by the amount of light loss in the fiber path. If your environment requires the signal to travel close to the typical maximum distance, you should use an optical time domain reflectometer (OTDR) to measure the power loss.
The following sections describe the power budget and signal specifications for the optics used in the channelized line cards:
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1-Port Channelized OC-12/STM-4 (DS1/E1) ISE Line Card Power Specifications
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1-Port Channelized OC-48/STM-16 ISE Line Card Power Specifications
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4-Port Channelized OC-12/STM-4 ISE Line Card Power Specifications
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1-Port Channelized OC-12/STM-4 (OC-3) Line Card Power Specifications
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1-Port Channelized OC-12/STM-4 (DS3) Line Card Power Specifications
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2-Port Channelized OC-3/STM-1 (DS1/E1) Line Card Power Specifications
1-Port Channelized OC-12/STM-4 (DS1/E1) ISE Line Card Power Specifications
The 1-port channelized OC-12/STM-4 (DS1/E1) ISE line card is only available in a single-mode, intermediate-reach configuration providing a full-duplex 622.08-Mbps 1310-nm laser-based SONET-compliant interface. The transmitter section of this device uses a laser with full IEC 825 and CDRH Class 1 eye safety. Table 5 lists the power budget and signal specifications of the 1-port channelized OC-12/STM-4 (DS1/E1) ISE line card. The actual distance in any given case depends on the quality of the fiber attached to the transceiver.
1-Port Channelized OC-48/STM-16 ISE Line Card Power Specifications
The 1-port channelized OC-48/STM-16 ISE line card is only available in a single-mode, intermediate-reach configuration providing a full-duplex 622.08-Mbps 1310-nm laser-based SONET-compliant interface. Table 6 lists the power budget and signal specifications of the 1-port channelized OC-48/STM-16 ISE line card. The actual distance in any given case depends on the quality of the fiber attached to the transceiver.
4-Port Channelized OC-12/STM-4 ISE Line Card Power Specifications
The 4-port channelized OC-12/STM-4 ISE line card is only available in a single-mode, intermediate-reach configuration providing a full-duplex 622.08-Mbps 1310-nm laser-based SONET-compliant interface. Table 7 lists the power budget and signal specifications of the 4-port channelized OC-12/STM-4 ISE line card. The actual distance in any given case depends on the quality of the fiber attached to the transceiver.
1-Port Channelized OC-12/STM-4 (OC-3) Line Card Power Specifications
The 1-port channelized OC-12/STM-4 (OC-3) line card s is only available in a single-mode, intermediate-reach configuration providing a full-duplex 622.08-Mbps 1310-nm laser-based SONET-compliant interface. Table 8 lists the power budget and signal specifications of the 1-port channelized OC-12/STM-4 (OC-3) line card. The actual distance in any given case depends on the quality of the fiber attached to the transceiver.
1-Port Channelized OC-12/STM-4 (DS3) Line Card Power Specifications
The 1-port channelized OC-12/STM-4 (DS3) line card is only available in a single-mode, intermediate-reach configuration providing a full-duplex 622.08-Mbps 1310-nm laser-based SONET-compliant interface. Table 9 lists the power budget and signal specifications of the 1-port channelized OC-12/STM-4 (DS3) line card. The actual distance in any given case depends on the quality of the fiber attached to the transceiver.
2-Port Channelized OC-3/STM-1 (DS1/E1) Line Card Power Specifications
The 2-port channelized OC-3/STM-1 (DS1/E1) line card is only available in a single-mode, intermediate-reach configuration providing a full-duplex 155-Mbps 1310-nm laser-based SONET-compliant interface. Table 10 lists the power budget and signal specifications of the 2-port channelized OC-3/STM-1 (DS1/E1) line card. The actual distance in any given case depends on the quality of the fiber attached to the transceiver.
Line Card Interface Cables
Channelized line cards with optic ports use fiber-optic cables. The line cards with T3, DS3, and E3 ports use T3 cables. Each of these cables are described in the following sections:
Fiber-Optic Cables
Use a single-mode optical-fiber interface cable to connect a line card with an optical port in your Cisco 12000 Series Router to another line card or add/drop multiplexer (ADM).
Note
Fiber cables are not available from Cisco Systems. They can be purchased from cable vendors. If the plug is supplied with a dust cover, remove it before trying to connect it to the line card port.
The subscriber connector (SC) cable connectors are used with channelized line cards with optic ports (Figure 16).
Figure 16 Simplex SC Cable Connector (Single-mode)
To remove an interface cable, follow these steps:
Step 1
Attach an ESD-preventive wrist strap to your wrist and follow its instructions for use.
Step 2
Press on the spring-action disconnect latch to disconnect the cable from the interface ports. (See Figure 16.)
Step 3
Slowly pull the connector from the port.
Warning
Invisible laser radiation can be emitted from the aperture of the port when no cable is connected. Avoid exposure to laser radiation and do not stare into open apertures.
Step 4
Insert a dust plug into the optical port openings of each interface that is not being used.
To install an interface cable, follow these steps:
Step 1
Attach an ESD-preventive wrist strap to your wrist and follow its instructions for use.
Step 2
Remove the connector dust cover, if one is present.
Step 3
Align the connector end of the cable to the appropriate port. Observe the receive (RX) and transmit (TX) cable relationship, as shown in Figure 17.
Figure 17 Attaching Fiber Cables




















