The WBBPf provides an indicator indicating the status of the Quad Small Form-factor Pluggable
(QSFP) link, and the indicator is above the QSFP port. Table 3-25 describes this indicator.
Table 3-25 QSFP port status indicators
Silkscreen Color Status Description
HEI Red or green Steady green The inter-BBU
transmission link is
functional.
Steady red An optical module
fails to receive or
transmit signals
because of the
following reasons:
l The optical
module is faulty.
l The fiber optic
cable is broken.
Blinking red (on for
1s and off for 1s)
The interconnection
link is out of lock
because of the
following reasons:
l There is no
mutual lock
between two
interconnected
BBUs.
l There is
mismatched data
rate over QSFP
ports.
Steady off
The optical module
cannot be detected.
Ports
Table 3-26 describes the three CPRI ports on the panel of the WBBPa and WBBPb.
BTS3900C (Ver.C)
Hardware Description 3 BTS3900C Modules
Issue 03 (2013-05-27) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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