A/B Ports; Terminals Connected To A/B Ports - Aastra OpenCom 510 User Manual

Interfaces and Connectible Terminals
5.4

a/b Ports

5.4.1 Terminals Connected to a/b Ports

a/b ports can be used to connect analogue terminals, e.g. apparatus for speech
and data communications using pulse or DTMF dialling, e.g.:
■
analogue telephones,
■
G3 fax machines,
■
(external or internal) analogue modems,
■
external music-on-hold devices,
■
external voice mail systems,
■
external intercom systems.
Please note:
Analogue Telephones
If analogue telephones are to be connected, we recommend devices that support
dual-tone multi-frequency (DTMF) dialling as it is not possible to use the addi-
tional features of the OpenCom 510 with pulse dialling telephones.
Modems
The maximum transmission rate for analogue modems is 33.6 kbits/s (V.34+).
Music on Hold
A suitable external device for music on hold is the Genius 2000, manufactured by
Speech Design. If you are not using an external MoH device, the OpenCom 510
offers an internal MoH feature: You can change the MoH melody in the SYS Confi-
guration: Components menu of the Configurator. For further information, refer
to the online help.
Please note:
48
Observe the following notes on connecting analogue termi-
nals. Terminals that do not satisfy the technical requirements
for connection with the OpenCom 510 may cause damage to
the communications system!
For external music on hold, use only devices with an input
impedance of 600 ohms, floating connection. An incorrect in-
a/b Ports