User's Manual Part 3

RBS 2109 User’s Guide

8. Check that the Y link cable is correctly connected to both the IXU and

the RRU

9. Check that the cable is free from damage

10. If the Y Link cable is damaged, replace it according to Section 9.5.10 Y Link

Cable Replacement on page 215

Replacing the RRU

11. Replace the RRU, see Section 9.5.7 RRU Replacement on page 208

Replacing the IXU

12. Replace the IXU, see Section 9.5.3 IXU Replacement on page 195

9.3.4 SO CF RU:4/ TIM

This section describes how to localise an SO CF RU:4/ TIM fault.

Related RUs

The RUs listed below have higher priority than the RU described in this section.

If they are present, go to the related section before handling this RU.

• If ‘‘SO CF RU:0/ IXU’’ appears in the OMT, proceed with Section 9.3.2

SO CF RU:0/ IXU on page 160

• If ‘‘SO CF RU:3/ Y link’’ appears in the OMT, proceed with Section 9.3.3

SO CF RU:3/ Y Link on page 161

• If ‘‘SO CF RU:34/ IDB’’ appears in the OMT, proceed with Section 9.3.8

SO CF RU:34/ IDB on page 169

• If ‘‘SO TRXC RU:0/ RRU’’ appears in the OMT, proceed with Section 9.3.12

SO TRXC RU:0/ RRU on page 174

Displaying Fault Information

Display fault information according to Section 9.3.1 Reading Fault Status on

page 159.

Perform the following actions step-by-step until the fault ceases:

Checking Contacts on TIM and IXU

1. Check that the TIM is correctly installed, and that all connector pins on both

IXU and TIM are free from damage.

Replacing TIM

2. Replace the TIM, see Section 9.5.6 TIM Replacement on page 205.

N/LZT 720 0090 Uen R1A 2004-09-17