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I
NSTALLATION
For detailed information about the cables, see 4.1 Cabling on page
22.
4.4 Option
Unit
(Optional)
It is possible to install an option unit in the phone. The option unit, which
is built into the foot console, provides the phone with Gigabit Ethernet
and an extra bell and busy signal.
Gigabit Ethernet
The option unit offers a Gigabit Ethernet interface module, the
purpose of which is to pass on gigabit traffic to the PC connected
to the IP terminal. The phone itself does not require the gigabit
speed.
Extra bell and busy signal
The option unit offers an interface for auxiliary equipment, such as
an external bell or a busy signal indicator. There are three alterna-
tives using this function:
•
Busy Signal.
The busy signal is activated in off-hook mode.
Can be used to control a Do-not-disturb lamp at the door.
•
Extra Bell.
The extra bell is activated parallel to the ring
signal.
•
Combined Bell/Busy.
A combined busy signal and extra bell.
Steady active in off-hook mode, and flashing when the phone
rings. Can be used for lamp indication in an office landscape,
for example.