User Manual

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User Manual
Warnings
• Caution: do not open the unit before disconnecting the mains. Internal
assemblies can be accessed by qualified personnel only.
• Do not connect supply outputs to remote units before switching off the
unit or disconnecting the mains.
Being a DC supply provided, a wrong connection can damage the remote
unit. Verify the proper polarity before switching on the equipment
TRS/TRSN installation
The TRS/TRSN sub-rack should be placed as close as possible to the TPRN to
allow an easy cabling in case of mixed fibre-copper cables. If the sub-rack
mounting location is not provided with a good air circulation, leave at least
one unit free between sub-racks.
The kit includes
• 1 TRS/TRSN
• 1 power cable
To install the TRS/TRSN remote supply unit follow next steps:
1. Fix the TRS/TRSN sub-rack to the cabinet with 4 screws
2. During the installation phase don’t connect the power cable to the main
power line and don’t switch on the TRS/TRSN
3. Set the switch in accordance with your main power line (115 Vac or 230
Vac) for universal mains option. In case of negative supply option (-48
Vdc), no switch is provided. Then connect the ground screw.
4. Before connecting the wires from TRS/TRSN to the remote units, open all
the fuses pulling the red circle then connect electrical wires for the remote
units (5.46c)
5. When all electrical wires have been connected and the system is ready to
start, connect the power cable, switch on the TRS/TRSN. Push one fuse at
a time (5.46b).
Each remote unit can be switched on/off by the relevant switch. The Pictures
5.46 below show how to do it.
TRS
TRSN
Fig. 5.46 Short circuit protection switches. (a): OFF position . (b): ON position: push down the
black button. (c): Pull out the red collar in order to switch off.
(
a
)
(
b
)
(
c
)