User's Manual

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4.2.3. Mechanical Specification
No Item Description
1 Dimension & Weight
1. Dimension: W 450mm
 H 630mm  D 284mm
(plinth included)
2. Weight: 40.5Kg
2 Method of Cooling Natural convection (Heat-sink)
3 Door Locking Type Two locks on the left side of the front of cabinet
4 Optic I/O
1. Position: Cabinet inside
2. Connector type: FC/APC
* Optic cable tray is provided in the inside of cabinet.
5 ANT PORT
1. location: 1 Port at bottom of cabinet
2. Connector Type: N Type Female
6 Power Input
1. Power: 110VAC
2. Position: bottom side of cabinet
3. Connector: MS3106A 16-10S
7 Ground 2Hole 16SQ at the left side of cabinet
8 Waterproof condition IP54 compliant
9 Misc. Features
1. Easy to maintain
2. Pole mountable (i.e., telegraph pole)
3. Lamp embedded with automatic On/Off function
according to the door opening status
4. Torque hinge used
4.2.4. Description of PW1900-C RU
[Forward path]
The CDMA signal(RF combined with modem signal) sent from optic module of MHU is
first divided into RF and modem signal at RFAGC module, then the RF signal(CDMA) is
amplified and filtered at the Driver Amp module(RFBS) and the modem signal is
conveyed to CPU of NMS controller through FSK modem.
The RF signal from the Driver Amp module(RFBS) is linearly amplified up to high
power level at HPA, passed through the Front-End Filter Unit, and finally transmitted
through an antenna.
[Reverse Path]
CDMA Rx signals incoming from an antenna are first passed by the Front-End Filter
Unit, amplified on a low noise and high gain performance at RRLNA/RRBS, and
combined with modem signal at combiner(RRCOM). The combined signal is transmitted