5.4 Checking the Transmission Between the BBU and RFU on the BTS Side. Huawei Technologies QISGRFU-1900

BTS3900(A) GSM

Commissioning Guide 5 Commissioning the BTS (Transmission Unavailable)

Figure 5-29 Board Information dialog box (2)

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5.4 Checking the Transmission Between the BBU and RFU on the BTS Side

This describes how to check the transmission between the BBU and the RFU on the BTS side.

By checking the link status of the BBU and RFU, you can rectify the fault caused by abnormal connection, thus ensuring normal communication between the BBU and the RFU.

Context

In this document, RFUs are classified into two types: DRFUs and GRFUs.

Procedure

Step 1 Check the status of the CPRI0 LED on the GTMU panel of the BBU and the status of the

CPRI0 and CPRI1 LEDs in the RFU panel.

If...

All the LEDs are in the on in green status

Then...

The communication between the CPRI0 port on

the BBU and the RFU is normal. Go to Step 4 .

Issue 02 (2009-04-20) Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

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