User's Manual

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To be used only for the purpose for which it is submitted. All rights reserved to AMDS LLC. Reproduction without written
consent is prohibited.
AMDS CONFIDENTIAL
1.5.2. Wiring
The TGB equipment enclosure wiring is supplied in another document and
is beyond the scope of this manual. All TGB connections to the wiring and
interconnect of the TGB equipment enclosure are provided below to assist
the operator in installing the TGB inside the equipment enclosure.
1.5.3. Alarms
1.5.3.1. Intrusion
The enclosure the TGB is mounted in is equipped with pin switches on
both the front and rear doors that activate and intrusion alarm when a
door is opened. A feature of the outdoor enclosures intrusion switch is
the ability to “pull out” the switch to cancel the alarm. The switch has a
30-minute mechanical delay, after which the intrusion alarm will again
be asserted.
1.5.3.2. Temperature
The TGB is equipped with high (120F) and low (41F) temperature
sensors. The TGB notifies the TGB controller of the type of alarm.
1.5.3.3. Power System
The rectifier has several alarm outputs to signal different types of faults
associated with the power system.
Low Voltage Alarm – Asserted upon loss of AC Commercial Power.
Rectifier Failure – Asserted when DC output voltage is out-of-range.
Load Fuse Failure – Asserted when one of the load fuses (Fan, Heat
Exchanger, Intrusion Alarm) opens.
Battery Failure – Asserted when output voltage drops below
threshold, Low voltage disconnect is activated, or Bypass switch is in
Bypass position.
1.5.4. RF Subsystem
1.5.4.1. Spark Gap
The antenna bulkhead connector is a Gas Discharge Tube Surge
Arrestor designed to shunt lightening induced transients to ground;
thereby protecting the TGB electronics from damage. The arrestor
contains a replaceable gas tube element that should be inspected
regularly are replaced as necessary.
1.5.4.2. Cavity Filter / Duplexer
The cavity filter is a frequency selective device designed to protect the
RF front end from overloading by out-of-band signals. The cavity filter
assembly is tuned and assembled as a unit by qualified AMDS
personnel. No cables or connectors should be changed or replaced,