User's Manual

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620021-0 Rev. A
2.2.1 System Monitoring and Reporting
Each Accel Hub in the system constantly monitors itself and its downstream RAUs
for internal fault and warning conditions. The results of this monitoring are stored in
memory and compared against new results.
When a Hub detects a change in status, a fault or warning is reported. Faults are indi-
cated locally by red status LEDs, and both faults and warnings are reported to the
Hub and displayed on a PC/laptop, via the Hub’s serial port, that is running the
AdminManager software. Passive antennas that are connected to the RAUs are not
monitored automatically. Perform the System Test in order to retrieve status informa-
tion about antennas.
Using AdminManager, you can install a new system or new components, change sys-
tem parameters, and query system status. The following figure illustrates how the sys-
tem reports its status to AdminManager.
Table 2-1 System Monitoring and Reporting
2.2.2 Using Alarm Contact Closures
The DB-9 female connector on the rear panel of the Accel Hub can be connected to a
local base station or to a daisy-chained series of Unison, LGCell, and/or MetroReach
Focus systems.
• When you connect MetroReach Focus or a BTS to Accel, the Accel Hub is the out-
put of the alarms (alarm source) and MetroReach Focus or the BTS is the input
(alarm sense). This is described in Section 6.6.1 on page 6-30.
• When you connect LGCell to Accel, the Accel Hub is the input of the alarms
(alarm sense) and LGCell is the output (alarm source). This is described in
Section 6.6.2 on page 6-33.
Accel
Hub
Each RAU passes its status to
the Hub.
• If a fault is detected, the
ALARM LED is red. If no fault
is detected, the LED is green.
• If a fault or warning condition
is detected, the information is
passed to the Hub.
The Hub queries status of
each RAU and compares it to
previously stored status.
• If a fault is detected, LEDs
on the front panel turn red.
• If a fault or warning condi-
tion is detected in any unit,
the Hub initiates a call to
AdminManager.
PC/Laptop
running
AdminManager
RAU
RAU
Use AdminManager to communi-
cate with one or more remotely or
locally installed systems.
If a fault or warning condition is
reported, the AdminManager graphi-
cal user interface indicates the prob-
lem. AdminManager can also send
an e-mail and/or page notification to
designated recipients.