Sagittar

Variable 5.8GHz

4/8E1 and FE

1

Key Features

4E1, 8E1 selectable traffic capacity

The products are software scaleable and can be configured either locally or remotely

Spectrum Analyzer for interference detection

Same Base Unit supports different service cards, i.e. 4E1, 8E1

Service card type can be identified by the Base Unit

Exceptionally high link performance and reliability

Management & Control via LCD or NMS

Integrated WEB Server

Rapid, simple installation by semi-skilled labour (a plug-and-play solution)

Easy-to-configure and high product flexibility

Adaptive Reed-Solomon Forward Error Correction (FEC) for high grade of service

Automatic Transmit Power Control (ATPC)

SNMP (NMI) Option available

Low power consumption

Protection Option available

2

IDU Overview

DC IN

V.11

V.24

Alarm

Interface

IN : 4 Photo

Couplers,

5 Relays

Phone

Service

Card

Switch

TO ODU Keypad

LED

Indicators

LCD

Grounding

10BASE-T

Management

RS232

3

IDU PCB

IDU Main Board Service Card

IDU

LCD&Keyboard

4

IDU Specification

General Specification

Tributary Payload Options 4E1, 8E1

Tributary Interface RJ48C

Tributary ITU-T compliance G703, G823

Loopbacks Port Loopback, Frame Loopback, IDU IF Loopback, Remote Line Loopback

Alarm Inputs 4 Photo-couplers

Relay Outputs 5 Form “C” Relays

Auxiliary Interfaces EOW, V.24 (RS232 : 9.6Kbps and 64Kbps), V.11 (RS422 : 9.6Kbps)

Intermediate Frequency 310MHz / 70MHz (up to 300m)

Management LCD, Internet Browser (WEB), SNMP

MTBF 180,000 hours

Dimensions (mm) 482 x 44 x 254

Power Consumption 8W

Temperature Range -10C to -55C

5

5.8V ODU

6

ODU Specification

General Specification

Frequency Source / Stability Synthesizer ± 5 ppm

RF Channel Selection IDU and controlled via NMS : 7 channels (4E1), 3 channels (8E1)

Modulation Type QPSK

Receiver Type Dual conversion

Intermediate Frequency 310MHz / 70MHz (up to 300m cable)

Transmitter

Output Power Up to +20dBm

Attenuation Control Range 10dB

Receiver

Noise Figure < 4.0 dB

Overload -20 dBm

Receiver Sensitivity (1E-6 BER) -89dBm/4E1, -86dBm/8E1

System Gain Up to 119dB

Dimension / Weight 300 mm x 230mm x 125 mm / 3.5Kg

Temperature / Humidity -33 ~ +55C, / 0% ~ 100%

Power Supply / consumption -40 VAC to -60 VAC / < 30W

7

Local Port Loop-back

DC/DC converter

Modulator

Service

data

MUX

IDU-ODU

Communication

Module

Demodulator

Card

connection

Demux

EOW

NMS CPU

Service

Card

DC in

Tribs

Dip

lexer

8

Local Frame Loop-back

DC/DC converter

Modulator

Service

data

MUX

IDU-ODU

Communication

Module

Demodulator

Card

connection

Demux

EOW

NMS CPU

Service

Card

DC in

Tribs

Dip

lexer

9

Local IF Loop-back

DC/DC converter

Modulator

Service

data

MUX

IDU-ODU

Communication

Module

Demodulator

Card

connection

Demux

EOW

NMS CPU

Service

Card

DC in

Tribs

Dip

lexer

10

Remote Tributary Loop-back

DC/DC converter

Modulator

Service

data

MUX

IDU-ODU

Communication

Module

Demodulator

Card

connection

Demux

EOW

NMS CPU

Service

Card

DC in

Tribs

Dip

lexer

11

Front Panel LED Indicators

Normal No Power Power working PWR

It is normal when LED is on for 1sec and off for 1sec, otherwise there is a fault.

IDU Fault CPU working WORK

IDU fault Normal IDU alarm IDU

Cable Fault Normal Cable Fault CABL

ODU fault Normal ODU alarm ODU

Received BER exceeds BER alarm

Threshold

Normal BER Alarm BER

Received frame synchronisation may be intermittent.

Normal Frame loss FLO

Remote Fault Normal Remote Alarm RAS

Tributary LOSS Normal Tributary LOSS TLOS

Operating in Loop-back mode Normal Loop-back Test TEST

LED on LED off LED Description LED