REPLACING THE FUSE
Disconnect all power sources (batteries and AC-DC power converter) from the Telesis
PX24U/PX24M Hybrid IP PBX system. Unscrew the fuse holder.
Replace the broken fuse with a new one (2Amp)
Place the new fuse into the fuse holder and screw it. Connect all power sources to the
system again.
DEM: Analog E&M Card ( Expansion Card for PX24M)
2- or 4-wire selection can be made individually for each port through the jumpers P04,
P14, P24, P34.
4-wire configuration: A1 and B1 are omni-directional and they transmit voice, A2 and
B2 are also omni-directional and they receive voice.
2-wire configuration: A1 and B1 are used in transmitting and receiving voice, they are
bidirectional.
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