BELGACOM Forum 523, Руководство по монтажу и пусконаладке, Страница: 58 / 244

Port Assignment, Termination, Cable Length 56
Installation
Please note: Please observe the following advice and recom-
mendations when connecting analogue devices. Devices which do
not comply with these technical prerequisites may damage the
Forum 523/524!
Analogue Telephones
If you are using analogue telephones, we recommend you use
phones with DTMF dialling, because Forum 523/524’s advanced
features can not be used with pulse dialling
Modems
The maximum transfer rate for analogue modems is 33.6 kBit/s
(V.34+).
Music on Hold
It is possible to connect a suitable external Music on Hold device.
If you are not using an external MoH device, Forum 523/524 pro-
vides a preset internal MoH, for which you can also use your own
melody. that you can replace in the
Configurator of the Web
console, in the System : Components menu . Please see the
online help for further details.
Please note: Use only devices with an input impedance of
600 ohms, and a potential-free socket for external Music on Hold.
Using a device with incorrect input impedance may irreparably
damage Forum 523/524!
Mail
If you are using an external mail system, it must be able to handle
the number of digits used for internal telephone numbers, e. g.
five digits, if you have set up the system to use 5-digit internal
numbers.
The mail system can be connected to the internal a/b ports or to
the internal S
0
ports, but for both types of ports the mail system
can send messages to system terminals using code procedures:
* 6 8 Z
[Terminal]
0
: Message exists for this subscriber
* 6 8 Z
[Terminal]: No message exists (without trailing “0”).