ONE300 – Installation Manual
22
Each block of jumpers allows:
• To connect or not a 100 Ohms impedance adaptation,
• To connect the power supply for ISDN terminal (30 volts).
For the power feeding, jumpers operating in pairs:
• No power feeding, both jumpers removed,
• With power feeding, both jumpers set.
For 100 Ohms adaptation, jumpers can be used in sending, in receiving or in
sending/receiving.
You find below some examples of configurations according to the position of the
jumpers:
Configuration without impedance adaptation and power feeding of the terminal:
Configuration
100 Ohms impedance adaptation
disconnected.
Power feeding for ISDN terminal
disconnected.
Configuration with impedance adaptation and without power feeding of the terminal:
Configuration
100 Ohms impedance adaptation
connected. The first jumper of the pair is
associated with the transmission, the
second one with the reception.
Power feeding for ISDN terminal
disconnected.
Configuration without impedance adaptation and with power feeding of the terminal:
Configuration
100 Ohms impedance adaptation
disconnected.
Power feeding for ISDN terminal
connected.
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