User Manual

ADCP-75-179 • Preliminary Issue A • September 2004 • Section 1: Overview

Page 1-9

3.2 Control and Monitoring Software

The EMS software and the SNMP Proxy Agent software provide control and monitoring

functions for the Digivance system through the local, NOC, and SNMP interfaces. The EMS

and SNMP Proxy Agent software are stored on CD-ROM’s which are shipped in a separate

package along with the software user manuals. The EMS software package is available without

the SNMP Proxy Agent if the SNMP interface capability not required for the application.

Software installation consists of copying the software files from the CD-ROM’s to a designated

directory on the hard-drive of the EMS computer.

The EMS software provides the capability to provision and configure the Digivance system for

operation. This includes selecting a site name, setting alarm thresholds, and setting forward and

reverse path RF gain adjustments. The EMS software also provides the capability to get alarm

messages (individual or summary), obtain data measurements, and to upgrade the HU/RU

system software. All control and monitor functions (except software upgrade which is not

supported by the NOC/NEM and SNMP interfaces and HU/RU pair site number assignment

which is not supported by the SNMP interface) may be implemented using the NOC/NEM

interface, the SNMP interface, or the EMS software GUI.

3.3 Fault Detection and Alarm Reporting

LED indicators are provided on the front panel of the HU and on the front panels of the RU

modules to indicate if the system is normal or if a fault is detected. In addition, normally open

and normally closed alarm contacts (for both major and minor alarms) are provided at the HU

for connection to a customer-provided external alarm system. All alarms can also be accessed

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

3.4 Powering

The HU is powered by ±24 or ±48 VDC and must be hard-wired to a local office battery power

source through a fuse panel. A screw-down terminal strip is provided on the rear side of the HU

for the power connections.

The RU is powered by 120 or 240 VAC power (50 or 60 Hz) and must be connected to a 20 Amp

AC power source. If the RU modules are installed in an outdoor cabinet, the AC wiring is placed

in conduit and permanently connected to the internal cabinet wiring. If the RU modules are

installed in an indoor mounting shelf, a standard three-conductor AC power cord is provided for

connection to a standard AC power outlet. A back-up battery system is available for specified

outdoor cabinets as an accessory. The battery-backup system powers the RU if the AC power

source is disconnected or fails.

3.5 Equipment Mounting and Configuration

The HU is a single-unit assembly that is designed for mounting in a non-condensing indoor

environment such as inside a wiring closet or within an environmentally-controlled cabinet. The

HU is intended for rack-mount applications and may installed (usually within 20 feet of the

EBTS) in either a 19- or 23-inch, WECO or EIA, equipment rack.