User Manual

ADCP-75-159 • Issue 1 • August 2003 • Section 2: Description

Page 2-14

4.2 STM and LPA Module Installation

Two mounting slots are provided within the indoor mounting shelf for installing the STM and

LPA modules. The mounting slots include tracks that guide each module into the installed

position. Separate mounting slots are provided for STM and LPA modules. Two D-sub

connectors (one male, one female) are located at the rear of each mounting slot. Each mounting

slot connector mates with a corresponding D-sub connector located on the rear side of each

module. A wiring harness links the mounting slot connectors together. The connectors and the

attached wiring harness provide the electrical interface between the STM and LPA modules.

The modules are held in the installed position with captive screws.

4.3 WDM and CWDM Installation

Mounting slots are provided in the indoor mounting shelf for installing a WDM or CWDM

module (accessory items). Each module is equipped with push-pull type fasteners for securing

the module to the mounting slot. A power cable is included with the mounting shelf for

supplying DC power when a CWDM module is installed.

4.4 Fiber Optic Cable Installation

Fiber optic cables and patch cords should be routed to the indoor mounting shelf using existing

fiber management systems. All fiber optic connections are made directly with the STM, WDM,

or CWDM modules. It is recommended that some provision be made at the mounting shelf for

storing excess patch cord slack.

4.5 Antenna Cable Connections

The antenna cable should be routed to the indoor mounting shelf for connection to the STM

module. If lightning protection is required, it is recommended that a lightning protector

(accessory) be installed near the point where the antenna cable enters the building or enclosure.

4.6 AC Power Wiring and Grounding

A standard three-conductor AC power cord is provided with the indoor mounting shelf for the

AC power connections. The receptacle end of the power cable connects to the AC connector on

the STM. The plug end of the power cable connects to a standard 120 VAC outlet. If AC power

spikes are likely to occur, a surge protector should be installed to protect the equipment from

damage. A grounding stud is provided on the left side of the mounting shelf for connecting a

separate grounding wire directly to the mounting shelf chassis.

4.7 User Interface

The RU mounting shelf user interface consists primarily of the mounting slots and AC and DC

power cables. The user interface points are indicated in Figure 2-6 and described in Table 2-3.