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Connecting analog users ¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢¢
You may connect all analog terminals to the
telephone system that you are also permit-
ted to operate on the analog telecommuni-
cations network.
a/b terminals
are:
- Telephone (a/b telephone) with tone dial-
ling (DTMF).
r
key as the flash key (flash
time: 50-150 ms),
S
key and
R
key.
Only restricted use can be made of tel-
ephones that are set to pulse dialling.
- Group 3 fax machines
- Answering machines
- Modem (up to 28 800 bps)
Connect a/b terminals by means of two
wires to the La and Lb wires (speech wires)
of the Vario ports. You must not connect
the Da and Db connections.
System telephones
Connect system telephones by four wires to
the Vario ports by connecting them to the
La and Lb wires (speech wires) and the Da
and Db wires (data wires; data for signalling
and displays).
For connection, carry out the following
work:
- Place the connecting leads through the
housing openings.
- Fit the screw terminals to the connecting
leads.
- Plug the screw terminals of the individual
leads onto the provided slots (see draw-
ings 2).
- If you route a connecting lead of the tel-
ephone system outside of the building,
you are advised to use external lightning
protection.
