PDH DMR Links
PDH DMR Links Over 15 years experience in the development and production of Digital Microwave Radio Links: Digital Microwave Radios have found rapid acceptance and are installed world-wide.
Sagittar’s
The Sagittar SGT-LPN
series of Digital Microwave Radios are Sagittar’s flagship products in the point-to-point PDH market, which provide a high value proposition, exceptional configuration flexibility and are ideal for rapid installation in modern communications networks.
The SGT-LPN series of Unlicensed Band DMR Links deliver:
ISM Band 2.4GHz and 5.8GHz band
Exceptionally high link performance and reliability in extreme conditions
Rapid, simple installation by semi-skilled labour with plug-and-play software
Easy-to-configure and high product flexibility
Lowest lifetime cost of ownership
Unsurpassed price/performance ratio
Key features include:
2E1, 4E1, 8E1, 16E1, 32E1 and 10/100BaseT Ethernet transmission, selectable traffic capacity
The products are software scaleable and can be configured either locally or remotely
Same Base Unit supports different service cards, i.e. 8E1, Fast Ethernet
Same IDU supports different ODU
Full range of configurations and frequency bands
Software Spectrum Analysis
Choice of RF channel without interference can be configured using software
Management & Control via LCD or Web browser
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
Easy-to-configure and high product flexibility
Rapid, simple installation by semi-skilled labour with plug-and-play software
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PDH DMR Links
PDH DMR Links
Data Sheet: General Specifications System Configurations
Non-Protected (1+0) 1+1 Hot Standby System Space and frequency diversity
RF Channel Selection
IDU Controlled or via NMS
Modulation Type
QPSK (or 16QAM)
Digital Line Code
HDB3
Digital I/O Connectors
DB-37 E1 75, unbalanced or 120, balanced 10/100BaseT: 100 balanced RJ45
Intermediate Frequency
310MHz/70MHz
Unfaded BER
10-11 or better
Loopbacks
Port Loopback, Frame Loopback, IDU IF Loopback, Remote Line Loopback.
MTBF
180,000 Hours
Frequency (GHz)
2400 ~ 2483.5
Capacity
2E1, 4E1
2300 ~ 2500
5725 ~ 5850 4E1, 8E1, 0/2/4E1+FE
Transmitter Output Power Attenuation Range
25dBm
25dBm
20 /27dBm
20dB
Receiver Overload
-20dBm
Receiver Sensitivity
-87dBm /4E1 QPSK, -83dBm / 8E1, 0/2/4E1+FE QPSK
(1x10-6 BER)
-90dBm /2E1 QPSK -83dBm/4E1 16QAM -80dBm/8E1 16QAM -77dBm/16E1 16QAM -74dBm/32E1 16QAM
Microwave Link Interface Interface types
Contact Details: sales@sagittar.com Web: http://www.sagittar.com Version: 38724 Issue 1.6
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PDH DMR Links
PDH DMR Links Mechanical Dimension (mm) Weight IDU-ODU Interconnection
IDU:
482 x 44 x 265mm
ODU:
300 x 230 x 125mm
IDU:
3.5kg
ODU:
5kg
Single Cable, RG-8 Type, 50 unbalanced Recommended Cable:
Belden 9913
Maximum Distance:
Up to 1000 Ft. (300 m)
ODU Connector Type:
“N” Male
IDU Connector Type:
“TNC” Male
ENVIRONMENTAL Temperature Range Relative Humidity
IDU: ODU: IDU: ODU:
-10～+50C -33～+55C 20%～90% 0%～100%
SERVICE CHANNELS AUX Data
Bit Rate: 19.2kbps,Protocol: RS232C Interface: RJ45
Software upgrading interface
Bit Rate: 115.2kbps Protocol: RS232C Interface: RJ45
Engineering Orderwire
Headset with Microphone and Earphone, 3.5mm (1/8 inch)
NMS Data Channel
Rate: 100Mbps, Protocol: 10/100 Base-T, Interface: RJ45
POWER SUPPLY Standard Input
-40VDC to -60VDC
Power Consumption
30Watts
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HighPerformance LPN Series Telecommunications and Networking Solutions
PDH DMR Links
PDH DMR Links 2.4GHz ISM Band (2400～2483.5MHz) Frequency Configuration Channel number:
4
Pairs
Interval between two channels:
7
MHz
55
MHz
T/R spacing for the same channel: H
(High Band Radio Station)
(Low Band Radio Station)
Tx
Rx
(MHz)
(MHz)
1
2404
2459
1’
2459
2404
2
2411
2466
2’
2466
2411
3
2418
2473
3’
2473
2418
4
2425
2480
4’
2480
2425
CH
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L
CH’
Tx (MHz)
Rx (MHz)
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PDH DMR Links
PDH DMR Links 2GHz (2300～2500MHz) Frequency Configuration
(1)
Channel number:
12
Pairs
7
MHz
116
MHz
Interval between two channels: T/R spacing for the same channel: H
(High Band Radio Station)
L
(Low Band Radio Station)
CH
Tx (MHz)
Rx (MHz)
CH’
Tx (MHz)
Rx (MHz)
1
2303.5
2419.5
1’
2419.5
2303.5
2
2310.5
2426.5
2’
2426.5
2310.5
3
2317.5
2433.5
3’
2433.5
2317.5
4
2324.5
2440.5
4’
2440.5
2324.5
5
2331.5
2447.5
5’
2447.5
2331.5
6
2338.5
2454.5
6’
2454.5
2338.5
7
2345.5
2461.5
7’
2461.5
2345.5
8
2352.5
2468.5
8’
2468.5
2352.5
9
2359.5
2475.5
9’
2475.5
2359.5
10
2366.5
2482.5
10’
2482.5
2366.5
11
2373.5
2489.5
11’
2489.5
2373.5
12
2380.5
2496.5
12’
2496.5
2380.5
A
B
2GHz (2300～2500MHz) Frequency Configuration
(2)
Channel number:
6
Pairs
Interval between two channels:
14
MHz
T/R spacing for the same channel:
116
MHz
H
(High Band Radio Station)
CH
Tx (MHz)
Rx (MHz)
1
2307
2423
2
2321
2437
3
2335
2451
4
2349
2465
5
2363
2479
6
2377
2493
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L
A
B
(Low Band Radio Station)
CH’
Tx (MHz)
Rx (MHz)
1’
2423
2307
2’
2437
2321
3’
2451
2335
4’
2465
2349
5’
2479
2363
6’
2493
2377
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PDH DMR Links
PDH DMR Links
5.8GHz ISM Band (5725～5850MHz) Frequency Configuration (1) Channel number:
6
Pairs
Interval between two channels:
7
MHz
82
MHz
T/R spacing for the same channel: H
(High Band Radio Station)
CH
Tx (MHz)
L
Rx (MHz)
(Low Band Radio Station)
CH’
Tx (MHz)
Rx (MHz)
1
5729
5811
1’
5811
5729
2
5736
5818
2’
5818
5736
3
5743
5825
3’
5825
5743
4
5750
5832
4’
5832
5750
5
5757
5839
5’
5839
5757
6
5764
5846
6’
5846
5764
5.8GHz ISM Band (5725～5850MHz) Frequency Configuration (2) Channel number:
3
Pairs
Interval between two channels:
14
MHz
T/R spacing for the same channel:
82
MHz
H
(High Band Radio Station)
L
Tx
Rx
(MHz)
(MHz)
1
5732
2 3
CH
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(Low Band Radio Station) CH’
Tx (MHz)
Rx (MHz)
5814
1’
5814
5732
5746
5828
2’
5828
5746
5760
5842
3’
5842
5760
HighPerformance LPN Series Telecommunications and Networking Solutions