Silkscreen
Color
Status
Description
Steady off
l
The optical
module cannot be
detected.
l
The CPRI cable is
not connected.
The LBBPd provides an indicator that indicates the Quad Small Form-factor Pluggable (QSFP)
link status. The indicator is above the QSFP port.
describes the indicator.
Table 3-52
QSFP link status indicator
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
The data rates of
the QSFP ports do
not match each
other.
Steady off
The optical module
cannot be detected.
Ports
describes the six CPRI ports on the LBBP panel.
BTS3900C (Ver.C)
Hardware Description
3 BTS3900C Modules
Issue 03 (2013-05-27)
Huawei Proprietary and Confidential
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