Motorola SG4-DRT-2X Instruções de Operação descarregar pdf (Página 19)

Overview 2-5

SG4000 Installation and Operation Manual

Network Monitoring

The optional LIFELINE Status Monitoring System enables you to monitor the SG4000 from a

headend or a remote location. The transponder (LL-SG4) consists of a plug-in module mounted

in the lid.

The entire LIFELINE system includes:

LL-CU control units

Connected to the system at the headend and interrogate each SG4000 field

transponder with FM outbound and inbound transmissions. A variety of outbound

and inbound frequencies can be selected depending on the configuration of the

system. The control unit reports this information to the status monitor computer.

Status Monitor

Computer and Software

Includes an IBM

-compatible computer that is connected to the control unit (CU)

through an RS-232 link. LIFELINE software enables the operator to view

measurements taken by the transponders.

LL-SG4-* Field Installed

Transponders

Installed in individual field components, this unit interfaces with the CU at the

headend. It reports parameters, such as forward amplifier DC current draw, AC

and DC voltage, management and control of RF ingress switching, and tamper

status.

Options and Accessories

Table 2-1 provides a list of options and accessories for the SG4000.

Table 2-1

Options and accessories

Model Description Function

JXP-B*

Fixed attenuator Attenuator pads are used to adjust amplifier levels and are available

in 1 dB steps from 1 through 24 dB. The appropriate value must be

installed.

JXP-ZX

0 dB attenuator This attenuator is used in place of JXP-B* pads when no attenuation

is needed.

FTEC

Crowbar

overvoltage

protection

The FTEC is an electronic crowbar/surge protector.

LL-SG4

LIFELINE

module

This module enables the system operator to monitor the SG4000

from a remote location. See Section 3, “Bench Setup and Operation”

for parameters monitored. See the product catalog for additional

information.

GFAL

Test probe This probe is used to evaluate node performance.

SG4-EPIM

Embedded

control module

This board controls the ingress switch and receiver A/B redundant

switching.

SG4-PS

Power supply

Provides the +24 VDC supply to the station. It has an extended

voltage range.

SG4-

SERCAB/*

Service cable An 8-fiber service cable that is available with SC/APC connectors.

LME-87-*

Forward

equalizers

Used to increase the output tilt of the receiver in an 870 MHz system.

They are available in 1 dB increments from 2 dB through 8 dB.

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 107 108

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Motorola SG4-DRT-2X Instruções de Operação Página 19

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