Extensions and accessories for system telephones (OpenPhone 71, 73, 75) Headset
1. Plug the keypad extension’s RJ45 jack into the system telephone’s RJ45 socket
(1).
2. Screw the keypad extension onto the system telephone (2).
3. Plug the power supply unit’s RJ45 jack into the socket provided on the righthand side of the keypad extension.
4. Pass the power supply unit’s cable through the recesses provided on the underside of the keypad extension and the system telephone.
5. Connect the power supply unit to the mains power supply.
6. Connect the system telephone with the U pn
or ethernet port.
5.3
Headset
A headset can be connected to the OpenPhone 71/73/75 system telephones and to the OpenPhone 73/75 IP telephones.
The headset must comply with the DHSG standard (connection via RJ45 jack). The manufacturers Plantronics and GN Netcom make devices suitable for this purpose.
Alternatively, you can connect a “normal” headset (RJ11 jack) using an adapter.
The headset must comply with DIN Norm EN 60950-1 Point 6.2 (“Safety of information technology equipment including electrical business equipment”).
Connecting a headset to a system telephone
The connector for the headset is in the bottom of the system telephone’s casing and is indicated by this symbol .
1. Plug the RJ45 jack on the headset cable into the socket provided.
2. Pass the cable through the recesses provided on the underside of the system telephone.
3. Activate the headset on the system telephone in the menu “Telephone settings: Headset” (see also the system telephone’s user guide).
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