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			G.703 point 6 2048 kb/s RSOH and MSOH bytes
Other interface	management interface service channel interface			10 Base-T/100 Base-TX adaptive; 10 Base-T/100 Base-TX adaptive
Mechanical / Environmental	operation climatic conditions (temp./humidity.)			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
	weight IDU weight ODU			3,17 kg - 1U; 5,96 kg - 2U <6 kg