Appendix A Outdoor BBU+RSU Cabinet
Indicator
Color
Meaning
Flash
Status
Descrip-
tion
the module
is abnormal.
ALM
Red
Alarm
Indicator
MMC control
indicator
On when
an alarm
occurs on
the module.
Off when
no alarm
occurs on
the module.
Site Alarm Module (SA)
Function
SA
module provides the following functions.
�
Communicates with
CC
through PMB-0 cable and performs CC
unit functions.
�
Supports nine fan rev control and monitoring.
�
Provides one
UART
to communicate with the master control
board CC.
�
Provides extensible full-duplex RS232 and RS485 communica-
tion channel for connected-externally monitoring equipment.
�
Provides six dry contact input and two two-way dry contact.
�
Provides temperature sensor monitoring interface with
FA
.
�
Provides eight E1/T1 interface and protection.
�
Provides BDS_ID and ABIS_MODE configuration.
Principle
SA module consist of management unit, reset unit, monitoring
unit, E1/T1 interface protection unit and power unit.
Figure 82
il-
lustrates the working block diagram of SA module.
F
IGURE
82 SA M
ODULE
B
LOCK
D
IAGRAM
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