Label
Color
State
Description
ON for 1s and OFF for
1s
The module is running (the TX
channel is set to OFF).
VSWR
Red
ON (red)
A VSWR-related alarm is generated at
the ANT_TX/RXA port.
Blinking (ON for 1s and
OFF for 1s)
A VSWR-related alarm is generated at
the ANT_RXB port.
Blinking (ON for
0.125s and OFF for
0.125s)
A VSWR-related alarm is generated at
the ANT_TX/RXA and ANT_RXB
ports.
OFF (red)
No VSWR alarm is generated.
CPRI0
Red/Green
On (green)
The CPRI links are normal.
On (red)
The reception of the optical module is
abnormal, and an alarm is generated.
ON for 1s and OFF for
1s (red)
The CPRI link has a loss-of-lock error.
OFF
The SFP is out of position, or the
optical module is powered off.
CPRI1
Red/Green
On (green)
The CPRI links are normal.
On (red)
The reception of the optical module is
abnormal, and an alarm is generated.
ON for 1s and OFF for
1s (red)
The CPRI link has a loss-of-lock error.
OFF
The SFP is out of position, or the
optical module is powered off.
Ports
describes the ports on the GRFU panel.
Table 4-47
Ports on the GRFU panel
Port
Label
Connector
Description
RF port
ANT_RXB
DIN
RF RX port, connected to the antenna
system
ANT_TX/
RXA
DIN
RF TX/RX port, connected to the antenna
system
CPRI
CPRI0
SFP female
Connected to the BBU, or the upper-level
RFU during the cascading
4 BTS3900 Components
BTS3900
Hardware Description
4-42
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Copyright © Huawei Technologies Co., Ltd.
Issue 04 (2011-02-15)