OS-1933-E3-003
Scope of Manual
1-2
044-05243 Rev A
Controller Module
The Controller Module shown in Fig. 1-7 provides control and monitoring of the OS operation through two
Ethernet ports, Form-C alarms, external alarm inputs and LED status indicators. Status and configuration
details are available through Ethernet web pages.
Power System
The power system shown in Figure 1-8, contains up to four +28.5 VDC plug-in 1300 watt rectifier modules.The
rectifier modules convert the system AC input power to 28.5 VDC to each MCPA and the Controller
Module. Performance of the power system is monitored and reported via the Ethernet web pages. Power
system faults are mapped to Form-C and optional wireless modem alarms
TMA Supply
The two Rx channels per sector provide DC power via Bias-Ts to external Tower Mounted Amplifier (TMA)
modules. Each channel is programmable via the Ethernet web pages. The Control Module monitors and
reports DC current. Loss of current or excessive current generates a fault and disables the channel. All fault
modes are continuously monitored for fault auto recovery. TMA power is provided independent of the bypass
status.
Fans
The system is cooled by two variable speed DC fans, located on the front and rear doors, providing air flow
through the booster cabinet. The fans draw ambient air through a filter mounted in the front panel vents and
send heated air out the filter mounted in the rear panel. The variable speed fans are dependant on the MCPA,
power system, Controller Module temperature sensors, and door intrusion status. Fan operation is disabled
when any door opens. Pulling out the door intrusion switch plunger emulates a door closure and activates the
fan operation. The variable speed fans maintain adequate cooling by operating at the slowest possible speed.
All temperature sensors are monitored by the Control Module and the hottest device controls the fan speed.
Fan speed increases or decreases by one step per one minute.
Ethernet Web Pages
The Ethernet web pages are accessible via the front panel Ethernet port on the Controller Module. Use a web
browser to view the following pages:
Form-C Alarms
The Form-C method includes four alarm levels detailing alarm severity as follows:
❑
Status/Static - Displays current firmware and user controllable configurations.
❑
Status/Dynamic - Displays the operator performance of the system in real time.
❑
Status/Alarm - Displays the status of all the individual alarm parameters.
❑
User - Displays Unique I.D. about this system and password entries.
❑
System/Configuration - Displays and allows modification to system configurations.
❑
System/Download - Firmware related interface.
❑
Minor - System requires maintenance.
❑
Major - System operating but not at optimum performance.
❑
Critical (one per sector, three total)- System disabled and bypass active due to a loss
of Tx or Rx.
Содержание OS-1933-E0-003
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