Maintenance Procedures

Replace Quad T1 Framer Card

Replace Quad T1 Framer Card

Procedure Summary

￿Overview ... 16-3

￿Precautions ... 16-4

￿Tools and Materials Required ... 16-4

￿Verify Equipment Status ... 16-5

￿Determine Which Replacement Procedure to Use ... 16-5

￿Replace Protected Controller Card ... 16-6

￿Replace Unprotected Controller Card ... 16-13

Overview

This procedure provides steps for replacing a Quad T1 Framer (QF) card. The Access Navigator can hold up to eight QF cards, providing a total of 32 DS1 circuits. QF cards are hot-swappable and can be installed at any time, without interrupting service on other cards, except when the card is providing a DS1 clock source used for system timing.

Each Quad T1 Framer card contains four DS1 circuits. DS1 circuit numbers are determined by the QF card slot (see also Figure 16-10):

QF Card Slot

 

DS1 Circuit Numbers

 

 

 

 

 

 

#1

1

2

3

4

 

 

 

 

 

#2

5

6

7

8

 

 

 

 

 

#3

9

10

11

12

 

 

 

 

 

#4

13

14

15

16

 

 

 

 

 

#5

17

18

19

20

 

 

 

 

 

#6

21

22

23

24

 

 

 

 

 

#7

25

26

27

28

 

 

 

 

 

#8

29

30

31

32

 

 

 

 

 

Access Navigator - Release 1.8

August 2003

16-19

Page 417
Image 417
Carrier Access Access Navigator user manual Replace Quad T1 Framer Card, Overview, QF Card Slot DS1 Circuit Numbers