T3 IP telephone cabling
19
Power supply
The T3 IP telephones can be powered in various ways: The power supply also depends
on the network components being used.
Note
•
All
new T3 IP telephones from T3 IP II.2 and higher support power over LAN
(PoL) according to standard 802.3a/f!
•
Phantom power supply according to Cisco is
not
supported.
a)
Local power supply via power supply unit:
The power supply unit is connected to the IP telephone. It then supplies power to the
telephone and also to the link, if one is present.
If you are using a switch or another power supply component in your network which
supports Power over LAN, the power supply unit is not required.
8
7
6
5
4
3
2
1
+40V
GND
40 V DC/
max. 150 mA
Reference number
4.999.086.800
Supplies telephone
and
possibly 1 link
7: GND
8: +40 V
b)
Remote Power over LAN (PoL)
The telephone is supplied with power via two unused wires of the LAN cable (this is only
possible if these wires run without interruptions throughout the installation).
Detection and power supply in accordance with current standard 802.3a/f (midspan).
Max. range: 100 m with Cat.5 cable 26AWG (same as transmission range acc. to
IEEE802.3u)
T3 IP phone
lower side
Plug-in mains unit
Содержание T3 Comfort
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