Abeo LAN over G.703 Extender
5
2.4 Power Supply
The MXU9020 is powered by a mains supply with an input voltage of 100-250VAC, 50-60Hz
with an input current of 60 to 24mA, and an input consumption of 6 watts approximately.
The MXU9020 is provided ex-factory with a 250mA internal fuse. Mains power is connected
via the IEC inlet on the rear of the unit.
An alternative -48VDC powered unit is available. The input voltage and current ranges are
-36 to -72 volts DC, 200-100mA. A Buccaneer type socket is fitted to the rear panel, and a
plug is provided with the unit for the customer’s own wiring. The connections are labelled on
the rear panel of the MXU9020.
Note: The MXU9020 must be connected to mains safety earth for correct operation.
Excessive voltages are present inside the unit. There are no user serviceable parts inside the
unit, and the cover should not be removed by unqualified personnel. The unit must not be
exposed to damp or condensing conditions.
The network is connected to the BNC connectors at the rear of the unit as shown below:
Cable lengths should be restricted to those defined below. The total maximum attenuation
of each of the cables attached to the network port must not exceed 6dB whne measured at
1.024 MHz. The frequency/attenutation characteristic of the cables attached to the network
port shall follow a root frequency law.
Pin No,
Connection
1
-48VDC
2
Ground
3
0VDC
2.5 Unbalanced BNC E1 Line Port
Pin
Function
Tip
Signal
Ring
Shield
Cable
Max Length (metres)
UR202
720
RG59U
600
BT2002
650
BT2003
680
Summary of Contents for Abeo G.703 LAN
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