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I N S T A L L A T I O N P R O C E D U R E S
Earthing / bonding point con-
nection
3.6.4
Subrack power supply
3.6.4.1
Local power interfaces
WARNING
3.6.4.2
Single circuit power supply
60
Proceed as follows:
1. Select one of the possible earthing / bonding points (6) on the subrack
mounting flange to be used for the subrack earthing.
2. Remove the M6 screw (5) from the selected earthing / bonding point.
3. Fix the crimp lug (2) of the earthing cable (1) with the M6 screw (5) (don't
forget the toothed washer (3) and the washer (4)) on the selected earth-
ing / bonding terminal (6) of the subrack mounting flange.
4. Tighten the M6 screw (5) provisionally.
5. Connect the other end of the earthing cable (1) to a suitable terminal of
the CBN.
End of instruction
Risk of operating trouble!
It is essential to keep the resistance of the earthing connection between the
subrack and the protective ground very low (recommended value according
to EN 60 950: < 0.1 Ohm).
The FOX615 subrack provides 1 interface for the common power supply of
the subrack and FAMO1 or FAMO1-F. The power interface of the subrack
connects
•
2 conductors (blue) for the U
•
2 conductors (red) for the 0 V and system ground (subrack construction).
This power interface is alternatively provisioned with power from the
•
power cable for single power supply (refer to
•
DUPF1 for dual power supply (refer to
The DUPF1 provides 2 power interfaces for the 2 power cables of the 2
power supply circuits (supply protection).
Hazardous electric currents. Risk of flashover and electric shock!
With life power supplies short circuits with flash over might result.
→ Before connecting the power supply make sure that the external - 48/
60 V
power is switched off.
DC
The following installation description applies for FOX615 installations with-
out DUPF1.
Figure 33
shows the principle of the power supply via a single supply circuit.
(-48/-60 V
),
T
DC
Figure
33),
Figure
34).
FOX615
Installation
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