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.
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
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)
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