10
The T Module 404 features 4 interfaces
(Vario ports) for system telephones or a/b
terminals.
Slots: X=1 - 4, freely optional
Connecting analog users
You may connect all analog terminals to
the telephone system that you are also
permitted to operate on the public tel-
ecommunications network.
a/b terminals are:
- Telephones (a/b telephones) with tone
dialling (DTMF), an
r
key as the flash
key (flash time: 50 - 180 ms.), a
S
key
and a
R
key.
Only restricted use can be made of tel-
ephones that are set to pulse dialling.
- Group 3 fax machines
- Answering machines
- Modems (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 wires.
System telephone
Connect system telephones by means of
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).
Connecting subscriber lines
- Mark the cables with the included mark-
ing system
- Strip 11 mm off the wires
- Push the individual wires into the termi-
nal until they move no further
without
pressing the terminal spring.
- To separate a connection, use a suitable
tool (screwdriver with narrow blade) to
press down the terminal spring and pull
out the wire.
Figure 6: Pin assignments of
the T Module 404
La4
Lb4
Da4
Db4
La3
Lb3
Da3
Db3
La2
Lb2
Da2
Db2
La1
Lb1
Da1
Db1
connections of a
TAE 2x6/6 NF/F
La Lb Da Db b´ a´
a´ b´ Db Da Lb La
1
2
3
4
5
6
1
2
3
4
5
6
The T Module 404 (User module)
Figure 5: T Module 404
