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Baluns are used to convert an interface from a BALanced signal to an UNbalanced signal.
A balanced signal uses an opposing pair of signals to give the correct signal. An unbalanced signal references a ground to give the correct signal.
Some standards, such as G.703, can be specified as a balanced signal on 120ohm twisted pair cable or as an unbalanced signal on 75ohm coaxial cable.
Cable runs can be much greater using a balanced signal, this is why various other interfaces use a pair of baluns to convert the standard interface to twisted pair and then back again after a much greater cable run than would normally be achievable.
Select which balun type is preferred.
Standalone is a single port in and out to go on a single circuit.
Rackmount is usually a multiport unit and fits in standard 19” network cabinets
Chassis type is to allow different types of interfaces to be fitted and added
Card types fit the chassis balun rack.
Choose the interface required to match the incoming G.703 signal presentation. This would usually be a pair of coaxial connectors.
Choose the interface required to match the outgoing G.703 signal presentation. This would usually be a balanced interface such as RJ45 or Telco but could simply be a conversion to a different coaxial interface.
Simply the number of E1 circuits that require a balun. Used in the Rackmount or Chassis type of baluns.
G.703 is normally presented as an E1 circuit running at 2Mbps. Higher speeds circuits are available, E2 which is 8Mbps and E3 which is 34Mbps. Select the correct speed to match your circuit.
G.703 is normally presented as an E1 circuit running at 2Mbps. Higher speeds circuits are available, E2 which is 8Mbps and E3 which is 34Mbps. Select the correct speed to match your circuit.