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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