Siemens HiPath 3000 V3.0 or later Gigaset M1 Professional, Руководство по обслуживанию, Страница: 586 / 1202

Installing HiPath 3000
P31003-H3560-S403-54-7620, 09/05
4-108
HiPath 3000 V6.0, HiPath 5000 V6.0, Provisional Service Manual
inst_h3.fm
Installing HiPath 3750, HiPath 3700
4.3.3.5 Grounding the System
4.3.3.5.1 Not for U.S.: Grounding the System
Grounding: Grounding options
If one or two ECs are required in addition to the BC, the four metal connecting plates must be
installed to properly ground these cabinets.
The illustrations starting with Figure 4-61 show different grounding options.
Note on possible ground loops
7
Danger
The HiPath 3750 system and the MDFU or MDFU-E must be grounded as shown in
Figure 4-60 by a separate ground conductor (minimum cross-section = 2.5 mm
2
)
Make sure that the ground conductor is securely installed and strain-relieved.
Failure to follow these instructions can result in electrical shock.
7
Danger
If your personnel are not qualified to work on the low-voltage network (230 Vac), you
must hire a licensed electrician to ground the system separately using option 1b
(Figure 4-62).
>
To avoid ground loops from remotely operated devices (V.24 system peripherals),
the devices should be connected to the same low-voltage network (sub-distribution
board) if possible.
If the building floor plan does not permit this, you may need a line driver to isolate
the external devices in the event of a malfunction.