Installation
130
Aastra 470 ab R3.0
syd-0337/1.5 – R3.0 – 05.2013
ports in groups of 4 ports. If the temperature then drops, the FXO ports
are automatically reactivated group by group. This behaviour can
occur particularly when the ambient temperature is higher than nor-
mal and/or with a system with maximum configuration. Normally local
exchanges produce a loop current of approx. 25 mA, which does not
cause any restrictions.
– Circuit type as per EN/IEC 60950: TNV-3
Connection
Assignment of the RJ45 sockets on the front panel:
Tab. 52 Connection FXO network interface
Public analogue network
Communication server
FXO signal Pin Socket
–1
–2
–3
a4
b5
–6
–7
–8
a
b
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