User Manual

4. Commissioning
MF0123A1A PSR 700/800 MHz
Page 27
4.2.10. Power Connection
Before connecting electrical power to the RU, the system must be grounded as
described in section 4.2.4 Grounding (Earthing).
Connect the power supply plug of the power supply cable that is part of the delivery at
the POWER connector of the unit (see section 4.2.3). Depending on the location /
requirements of your site, one of the following cables is provided:
white
neutral
black
phase
green
protection earth
figure 4-4 Power supply cable (AC)
white
-48 V
black
0V
figure 4-5 Power supply cable (DC)
Connect the cable ends (shown above) of the power cable to your local power supply.
 Note: Observe the applicable national regulations regarding loop impedance,
voltage drop, and methods of installation. Make sure to connect the correct
voltage to the unit.
 Note: Do not connect or disconnect the power cord at the POWER connector
while power is on. Turn off mains power * before connecting the power cord
at the PSR, then, engage mains again.
* Mains power must be interruptible with an external delay-actions mains breaker. For the mains
breaker, observe the following recommendation:
120 Volt / 20 Amp max. or 240 Volt / 16 Amp, single-phase, 50 / 60 Hz AC service is needed,
i.e. the external AC breaker should be 20 Amps max. for 120-Volt service or 13 to 16 Amps for
240-Volt service. Always make sure that your local requirements are kept.
For the DC power supply, observe the local regulations of the DC service provider.