3 Commissioning
Page 30
User’s Manual for ION-U 7/8/85/17/19
The Vdc/100 power cable is available for locations where the power drawn on each
cable must be limited to a maximum of 100 VA. This cable is a 3.2 m (10.5 ft) 16
AWG cable with a 7-pin Amphenol C016 series plug on one end to connect to the RU
Mains connector. The other end of the cable is un-terminated with 4 end splices to
connect to the -48 vdc power source.
1
2
4
5
7
Amphenol 7-Pin
female connector
Protective Cap
4x end splice
B0302AUA
RU Mains
Connector
7-Pin Amphenol C016
Series
Pin
Name
Color
1
0V
2
–48V
3
n.c.
4
0V
5
–48V
6
n.c
7
Ground
figure 3-12 Vdc/100 power cable
table 3-5 Vdc/100 power
cable
For the AC power supply connection, a minimum cross section of 1.5
mm
2
is required and for the DC power supply connection, a minimum
cross section of 2.5 mm
2
is required. 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 cable at the mains
connector while power is on. Turn off mains* power before
connecting the power cable at the remote unit, then, engage mains
power again.
* Mains power must be interruptible with an external 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 16 Amps for 240-Volt service.
For the DC power supply, observe the local regulations of the DC service
provider.
Use the following method to install and connect the Mains power to the RU:
1. Locate the Mains power cable that was delivered with the RU.
2. Locate or install a suitable power junction box or receptacle near the RU and
route the power cable from the power source to the RU. Do not connect the
cable to the
RU’s Mains connector at this time. The power source must be
interruptible.
