User’s Manual for Node M and Node C
Network Elements
Page 32 M0121A4A.doc
Mains AC Mains DC
PIN Connection Colour Connection Colour
1 Phase brown not connected
2 Neutral blue -Vdc* black
3 not connected +Vdc* red
4 PE green / yellow PE green / yellow
table 4-3 Pin assignment of 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.
) 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 units, then, engage mains again.
* Black is always the negative potential while red is the positive one.
** Mains power must be interrupted with an external AC or DC breaker. For the AC or DC 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.
Option: 48 Vdc (36-72 Vdc). The external DC breaker should be 20 Amps.
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