Notes On The Mains Supply; Notes On Emc And Earthing - Aastra OpenCom 510 User Manual

Installation

4.1.2 Notes on the Mains Supply

The OpenCom 510 may be connected only to mains sockets with a protective
earth conductor.
Install the OpenCom 510 only near easily accessible, wall-mounted mains sockets.
Always use a dedicated circuit with 10 A protection to supply the 19" frame (1-
12 frame).
If the OpenCom 510 is being powered by two MPS+1-AC power supply units, each
of the two units must be plugged into its own mains socket. It is not permissible
to use multiway mains strips to connect more than one OpenCom 510 power
supply unit or a OpenCom 510 and other devices to the same mains supply
together.
The mains cables of the MPS+1-AC power supply units must have ferrite rings
fitted. The mains cables are factory-fitted with ferrite rings.
Mains cable with ferrite ring
Install an overvoltage protection device.

4.1.3 Notes on EMC and Earthing

Please note:
Use earthing wrist straps connected to the appropriate points on the frame (see C
in the illustration OpenCom 510: 1-12 frame mounting points on page 25).
The mains socket's protective earth conductor and the telephone earth line must
be connected to one reference point for potential equalisation. This is normally
the OpenCom 510 housing.
22
MOS modules:
Observe the regulations regarding modules and packaging
carrying the MOS trademark!
Safety Precautions