Connecting The Earthing Wire - Mitel Aastra 470 System Manual

4. 3. 1

Connecting the earthing wire

The communication server's earthing connection is located on the rear panel of the
communications server next to the mains power socket. The earthing wire is se-
cured using a screw and a spring washer.
Fig. 21 Earthing connection
Direct connection
Socket-outlet
Mains power
Protective wire
Building earth
Fig. 22 Earthing of the communication server in the case of direct cabling and indirect cabling
Aastra 470 as of R3.2
syd-0337/1.6 – R3.2 – 09.2014
Aastra 470
Copper wire yellow/
2
green 2,5 mm
2
protected 4,0 mm
unprotected
Indirect connection
Mains power
Protective wire
(Main) distribu-
tion board
Copper wire yellow/ green
2,5 mm
Building earth
unprotected
Installation
Socket-outlet
Aastra 470
2 2
protected 4,0 mm
99