ADCP-96-015 • Issue 1 • July 2004

9.Secure the fiber subunit to the panel on the right side of the cabinet using the tie points provided.

10.From the right side of the cabinet, route the fiber subunit to the center panel located just below the splitter modules and secure using the tie point provided.

11.From the center panel, route the fiber subunit to the splice wheel used for the splitter module input fibers following the same path as the splitter module input fibers.

12.Repeat steps 1–11 for each feeder cable subunit and each additional feeder cable.

5.4Feeder Cable and Splitter Input Fiber Splicing

The OSP feeder cable fibers must be spliced to the splitter input fibers. Up to twelve splitter modules may be mounted in the cabinet so that a maximum of twelve feeder splices may be required. Round splice trays are used for splicing and seven splice tray mounting slots are provided. Each splice tray can hold up to 12 splices. Use the following procedure to install the feeder cable fibers and splitter input fibers in each splice tray in preparation for splicing:

1.The input fibers from each splitter are routed to a splice tray located on the top left side of the cabinet. Locate the splice tray that was used for the splitter input fibers and remove that tray from the cabinet.

2.Uncoil the splitter input fibers from the splice tray.

Note: The splitter input fibers are temporarily coiled around the splice tray for storage.

3.Secure the splitter input fibers and the feeder cable fiber subunit together at the point where the two come together before entering the splice tray (see Figure 16). Adjust slack as necessary to prevent binding.

4.Check the routing of the splitter input fibers and adjust as needed to relieve tension or remove excess slack.

5.Starting at the common tie point within the cabinet, measure and mark the fiber cut lengths for the splitter input fibers and the feeder cable fiber subunits as shown in Figure 17.

 

 

 

 

CUT LENGTH* 68 TO 146 IN

 

BREAKOUT

 

 

(173 TO 371 CM)

 

 

 

 

 

 

 

 

 

 

 

LENGTH 37 IN

 

 

SPLITTER INPUT FIBER

 

 

 

 

(94 CM)

 

 

BREAKOUT LENGTH 48 IN

(122 CM)

FEEDER CABLE

FIBER SUBUNIT

*THE CUT LENGTH MUST BE

COMMON TIE

 

THE SAME FOR BOTH FIBERS

POINT IN CABINET

19220-A

Figure 17. Cut Length and Breakout Length for Feeder Cable and Splitter Input Fiber

Page 26

© 2004, ADC Telecommunications, Inc.