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SDR STM-1 Transmission equipment STM-1 on the radio-relay link
In the last few years network operators are facing rapid growth and fast migration from TDM to packed traffic. The main challenge is how to optimize investments and reduce maintenance costs. The transition from legacy circuit network (TDM) to high-speed packet network is rapid and new equipment must support both technologies. New telecom operators need low entry and operational costs, but also scalable equipment in order to follow future market developments.
SparkWave is optimized for different propagation conditions in different weather conditions. In many cases, spectrum economy plays a major role in considerably reducing operating costs.
The equipment SparkWave series has different outdoor and indoor radio relay units. SparkWave SDR indoor unit is modular. Different housings and high integration level allow easy interconnection, stacking with ESSI interface and direct connection to existent F/O networks. Outdoor units (ODU) is connected to the IDU via single coaxial cable up to 400 m. The outdoor units are connected to antennas using waveguide up to 1.8 m.
The SparkWave SDR STM-1 is intended for microwave transmission of STM-1 traffic, operating in 5, 6, 7, 8, 11, 13, 15, 18, 23 and 26 GHz frequency range.
Split Mount solution with STM-1 IDU and compact ODU. The STM-1 tributary interface can be optical or electrical. An additional 2Mbit/s wayside channel per traffic channel is available. Configurations 2+0 and 1+1 with the possibility of using the stand-by connection for low priority traffic are possible.
A management system with an SNMP agent and a OSPF router is built into the unit. No additional equipment is needed except a standard PC computer with built-in web browser.
The unit enables operation in ATPC (Automatic Transmitted Power Control) mode.
Technical data
Frequency plan
5,6,7,8 GHz
11 GHz
13 GHz
15 GHz
18 GHz
23 GHz
26 GHz
RF output power, dBm
22/26
21/26
20
20
19
18
18
Channel spacing
28 MHz
28 MHz
28 MHz
28 MHz
27,5 MHz
28 MHz
28 MHz
Frequency stability
± 5х10-6
Frequency seeting step
0,25 MHz
ATPC output power
adjusting range
20 dB in 1 dB step
Receiver treshold at
antenna connector in
dBm for BERR=10-6
modulation 28 MHz
128QAM -69
Link protection modes
Hot Stand-By, Space Diversity, Frequency Diversity, Hitless switch
Trafic interface
bit rate
installation mode
155.52 Mb/s ±20 ppm
SFP plug-in modle (electrical or optical)
E1 wayside channel
ITU-T recommendations
bit rate (plesiochronous)
multiplexing principle
indoor unit (IDU) -5°С...+45°С/8...95% ETSI EN 300 019 class 3.1Е outdoor unit (ODU) -33°С...+50°С/5...100% ETSI EN 300 019 class 4.1Е (-50°С...+50°С option)
storage/transport conditions
ETSI EN 300 019 class 1.1/class 2.3
EMC compatibility
ETSI 301 489-4
power supply
from 20V to 72V ETSI EN 300 132
power consumption IDU power consumption ODU
<19 W - 1U, <39 W - 2U
<25 W
dimensions (H x W x D) IDU dimensions (H x W x D) ODU
45 х 442 х 240 mm - 1U; 86 x 442 x 240 mm - 2U
200 х 150 х 80 / F305 x 120