
HS-Module 30
7
Operating mode: DHSG
The DHSG (Wireless Headset) interface is a ne ly designed industry standard hich various
headset and end device manufacturers have joined up ith.
This bidirectional interface ensures that all telephones and headsets function together irrespective
of the manufacturer, and provides a ide range of features. The telephone can signalise On-hook,
Off-hook and Ring to the headset and the headset can signalise On-hook and Off-hook to the
telephone the other ay around. Prerequisite for this feature is that both telephone and headset
conform to this protocol!
The DHSG interface requires an 8-core cable. The four inner ires of the 8-core cable transmit the
audio data for listening and speaking, hile the 4 outer ires transmit the control information.
With the help of the module, the control information contained in the 4 outer ires can no be
analysed. Ho ever, the audio data in the 4 inner ires must be transmitted to the headset jack on
the underside of the ST 30 ith a separate cable, as before.
Installation
1.Detach and plug in the ST 30 ISDN cable and check the telephone's soft are version hen
booting. It has to be 'Ver. 3.1' or higher. If this is not the case, perform an update first.
2. Detach the ISDN cable from the ST 30 and remove the plug. The display and LED should no be
dark.
3. Set jumperblock 1 to DHSG
4. Connect the headset jack on the underside of the ST 30 to the corresponding jack on the headset
(jack ith the telephone symbol, but NOT the handset symbol) using the 4-core cable supplied.
Caution: if the DHSG cable supplied by the headset manufacturer has an audio plug and a control
plug, do not use the audio plug, but the 4-core cable supplied ith the HS Module 30 instead.
5. Plug the 8-core cable supplied ith the headset into the jack on the HS Module 30 and set
jumperblock 2 to DHSG You can also use the cable supplied ith the HS Module 30.
Exception: if you are using a headset from GN-Netcom and the HS 30 8-core cable supplied, you
should set jumperblock 2 to 'AUX'.
6. Lay the cable around the module, plug in the module and feed the cable though the opening.