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User’s Manual for Node C Network Elements
Page 22
M0121A1A_uc.doc
3.2.3 Power
Connection
Before connecting electrical power to the units, the system must be grounded as
described in the previous chapter.
Mains power must be connected at the mains connector of the Interface Unit. The
power supply plug is included with the Node C.
The correct wiring
of the power supply
plug is as follows:
figure 3-10 Power supply plug
figure 3-11 Mains connector
A minimum cross section of 1.5 mm
2
is required for the power supply
connection. Each wire must observe the applicable national regulations
regarding loop impedance, voltage drop, and methods of installation.
Make sure to connect the correct voltage to the unit.
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 mains connector
while power is on. Turn off mains* power before connecting the
power cord at the Interface Unit, then, engage mains again.
power cord at the Interface Unit, then, engage mains again.
* Mains power must be interrupted with an external AC breaker. For the AC 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
16 Amps for 240-Volt service.
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
16 Amps for 240-Volt service.
Mains