Installation
60
a/b Ports
The a/b ports a/b1 to a/b4 can be used for connecting analogue terminals. These can
be for voice or data communication, and use DTMF or pulse dialling, e.g.
• analogue telephones
• class 3 fax machines
• analogue modems (external or internal)
• external devices for music on hold
• external voice mail systems.
Additional a/b ports can be provided by installing interface cards (on an
OpenCom 130 / 150).
Please note: Adhere to the following notes and recommendations regarding
the connection of analogue devices. Devices not meeting the
technical requirements of the OpenCom 100 can cause damage
to it.
Analogue Telephones
If analogue telephones are to be used, we recommend the use of devices featuring
voice-frequency (VF) signalling, as the additional features of the OpenCom 100
cannot be used with pulse dialling.
Modems
The maximum transmission rate for analogue modems is 33.6 kbit/s (V.34+).
Music on Hold
A suitable external device for music on hold is the Genius 2000, manufactured by
Speech Design. If you do not operate an external MoH device, the OpenCom 100
offers an internal MoH, which you can load in the Web console Configurator in the
System: Components menu. For details, refer to the online Help.
Please note: Use only devices with an input impedance of 600 ohms, floating
connection, for external music on hold. Incorrect input imped-
ance can cause irreparable damage to the OpenCom 100.
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