Description of Product

BL–703 Balun Converter solve the problem such as unmatchable between the Impedance of twist pair devices with 75 ohms to 120 ohms and physical interface etc. As the E1 intercommunication usuallyunmatched because of the products offered by different communication device manufacturers, it makes the device use in large amount. It can support E1 data rate 2.048Mbps,and realize the transport transparent between 75ohm and 120 ohm.The output sign according CCITTG.703 .

Features

According to ITU-T G.703
Connects 75 ohm dual coax to 120 ohm twisted pair
Data rates up to 2.048Mbps
Coax BNC connectors, Female or Male optional
Settled 120ohm balance port pin
Mounts in standard 19″ (48.3 cm) Rack

Electrical Characters

Impedance: 75 ohm unbalanced coaxial to 120 ohm balanced twisted pair
Bit Rates: 2.048Mbit/s as ITU-T Recommendation G.703 Line Code
Return Loss: 2.048Mbit/s as per G.703 requirements
Insertion Loss: <0.9dB from 51kHz to 51.55MHz
Cross Talk: >60dB from 51kHz to 51.55MHz between 2 baluns mounted 15mm apart
Pulse Shape: 2.048Mbit/s as per G.703
Signal Levels: 2.37V nominal peak voltage for 2.048Mbit/s at the coaxial end
Isolation Voltage: 250VDC for 1 minute between windings
Pulse Test: 3kV as per ITU-T, K.17

 

Download datasheet: BL-703

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