Add-ons
12
System Telephones on the Forum 500 / Forum 5000
Add-ons
On the back of the Forum Phone 520 and the Forum Phone 530
you will find sockets to which add-ons and accessories can be con-
nected, either directly or via various adapters:
z
one socket on the Forum Phone 520, and
z
two sockets on the Forum Phone 530.
The following components are supported by the Forum 500 /
Forum 5000:
z
U
pn
adapter
Forum Phone 500 module 2nd Forum Phone
z
a/b adapter
z
Forum Phone 500 power supply 2nd phone
(on a U
pn
adapter and on an a/b adapter)
z
Audio adapter
Forum Phone 500 module Headphone
The Forum Phones can be expanded as follows:
z
the Forum Phone 530 by up to three
keypad modules
Forum Keypad 530.
Keypads are connected directly to the telephone (i.e. without
adapters).
Please refer to the chapter entitled
The Keypad Module on the
Forum Phone 530
starting on page 31.
z
Forum Phone 520 and Forum Phone 530 can each be
expanded by the connection of a second Forum Phone.
A second telephone is connected via a U
pn
adapter
(Forum Phone 500 Module 2nd Forum Phone) and in addition
via an AC adapter, if this is necessary. Only a limited number of
system telephones can be connected in this way for operation
as second telephones.
