User's Manual

ADCP-75-187 • Issue 1 • September 2005 • Section 2: DESCRIPTION

Page 2-8

Figure 2-3. Interim Single-Band Remote Unit

3.2 Mounting

The RU may be mounted on a flat vertical surface (such as the side of a building) or on a utility

pole. A combination wall/pole mounting bracket is provided with each unit. A separate strand-

mount kit (accessory item) is available if it is necessary to mount the RU from a cable. A

grounding lug is provided on the bottom of the RU enclosure for connecting a grounding wire.

3.3 Fault Detection and Alarm Reporting

The RU detects and reports various faults including remote unit fault, optical fault, output power

fault, temperature fault, and power amplifier fault. A single bottom-mounted Light Emitting

Diode (LED) indicator turns from off to red if a major fault is detected. The status of the STM

and LPA, the alarm state, and other fault information is summarized and reported over the

optical interface to the HU. Fault and alarm information may be accessed at the HU through the

EMS software GUI or remotely through the NOC/NEM interface or SNMP interface.

3.4 Antenna Cable Connection

The antenna cable connection between the RU and the antenna is supported through a single N-

type female connector. The N-type connector provides a connection point for the antenna cable.

The forward and reverse path RF signals are combined on the same antenna cable. It is

recommended that a lightning protector (accessory item) be connected to the antenna port prior

to connecting the antenna cable. On an optional basis, the dual-band RU (future) may be

equipped with two N-type connectors to support antenna connections to two separate antennas.

20568-C