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Optical Converter KOE-4
Optical converter KOE-4 is a device designed to convert electric PRA (E1) 2Mbit/s interface (G.703/120Ω standard) into relevant optical signal for fiber transmission. The device allows different coding selection in the optical interface. Each chassis contains 4 fully independent converters. Capabilities: 
• Four fully independent converters; • Electric interface: E1 2Mbit/s G.703/120Ω • basic E1 2Mbit/s G.703/120Ω • 256…2048 kbit/s biphase coding (STANAG 4210) as option • Optical interface: • wave length 1300nm, 850nm as option • multilple coding standards (CMI, HDB-3, diphase and others) • MFM optical interface • Remote management and configuration by Q2 interface • Size: casette 19″ 1U • Working temperature -40°÷ +50°C • Power supply: 27VDC (22÷30) 
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