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Clear Channel 6-Port T3 (DS3) Line Card Installation and Configuration
OL-3449-02
Chapter 3 Removing and Installing Line Cards
Line Card Removal and Installation
Cisco 7304—Removing and Installing a Line Card
1. To remove the line card, loosen the locking thumbscrews on both sides of the line card.
2. Pull out the line card levers and carefully slide the line card halfway out of the slot. If you are removing a
blank line card, pull the blank line card completely out of the chassis slot.
3. With the line card halfway out of the slot, disconnect all cables from the line card. After disconnecting the
cables, pull the line card out of the chassis slot.
4. To insert the line card, carefully align the edges of the carrier or printed circuit board between the upper
and the lower edges of the chassis slot.
5. Carefully slide the new line card halfway into the line card slot and connect all required cables.
6. With the cables connected, carefully slide the line card into the slot until the line card makes contact with
the backplane.
NOTE: The line card levers must be positioned at a 45-degree angle before the line card makes contact
with the backplane.
7. Push the line card levers in until the line card is fully seated in the router backplane.
NOTE: When the chassis is fully populated, seating a new line card may be difficult. In order to properly
seat the line card and avoid physical damage, loosen the thumbscrews on the neighboring line cards.
CAUTION: Use of excessive force to seat the line card may damage the router or line card.
8. Tighten the locking thumbscrews on both sides of the line card.
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- Text Part Number: OL-3449-02 1
- CONTENTS 3
- Contents 4
- Objectives 7
- Organization 7
- Related Documentation 8
- Obtaining Documentation 8
- Documentation CD-ROM 9
- Ordering Documentation 9
- Documentation Feedback 9
- Cisco.com 10
- Technical Assistance Center 10
- Cisco TAC Website 11
- Cisco TAC Escalation Center 11
- OL-3449-02 12
- Overview 13
- Features 14
- 6-PORT T3 DSU 15
- 7300-6T3 15
- T3 SMB Cables 16
- SMB connector Female BNC 17
- Male BNC 17
- Ordering Cables 18
- Building Your Own Cables 18
- Management Information Base 19
- Chapter 1 Overview 20
- Preparing for Installation 23
- Safety Guidelines 24
- Warning Definition 25
- Attention 26
- Figyelem! 26
- Avvertenza 26
- Advarsel 27
- ¡Advertencia! 27
- Varning! 27
- Telephone Wiring Guidelines 30
- Installation Overview 31
- Handling Line Cards 32
- Online Insertion and Removal 32
- Warnings and Cautions 33
- Connecting a T3 SMB Cable 35
- Configuring the 6T3 Line Card 37
- Configuring the Interfaces 38
- Selecting a DSU Mode 42
- Enabling Payload Scrambling 43
- Configuring the Clock Source 44
- Defining the DSU Mode 44
- Checking the Configuration 45
- Table 4-7 Using show Commands 46
- Cisco 7304 Routers 47
- DS3 Alarm and Event Detection 50
- Using loopback Commands 51
- Figure 4-1 DS3 Loopback Paths 52
- CLI-Controlled OIR 53
- Line Card Crash Recovery 53
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