Table 3-23
CPRI port configuration principles
MRFU
Slot
Number
0
-
2
-
4
-
LRFU
Slot
Number
-
1
-
3
-
5
Number
of the
CPRI
Port on
the
WBBP in
Slot 3
CPRI0
-
CPRI2
-
CPRI4
-
Number
of the
CPRI
Port on
the LBBP
in Slot 2
-
CPRI1
-
CPRI3
-
CPRI5
3.6 BTS3900 Monitoring System
The BTS3900 monitoring system monitors all boards and components in the cabinet. If any
board or component is faulty, an alarm is reported automatically. The alarm signals are collected
both inside and outside the cabinet by the UPEU, UEIU, or EMU, so that the entire site can be
monitored.
3.6.2 Monitoring Principles of the Cabinet
When an alarm is generated by the customized equipment, the alarm must be reported to the
BBU.
3.6.1 BBU Monitoring Port
The BBU houses the UPEU and UEIU for monitoring. Each board has two Boolean input ports
and two RS485 input ports, and each Boolean input port receives four Boolean inputs.
shows the slot assignment for the UPEU and UEIU.
3 BTS3900 Hardware Configuration
BTS3900
Hardware Description
3-36
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Issue 04 (2011-02-15)