Sennheiser Pro1/Pro2 User Manual download pdf (Page 14)

Connection of an optional

mechanical handset lifter

(with connection possibili-

ties

and

only)

Putting the headset system into operation

You can also connect the HSL 10 mechanical handset lifter from Sennheiser

Communications (see “Accessories and spare parts” o

n page 36):

왘 Connect the base station to the fixe

d line phone as described under

왘 Connect the handset lifter to the ACC socket 

on the base station.



왘 Connect the handset lifter to the fixed line phone as described in the

instruction manual of the handset lifter.

Connection to an optional

electronic hook switch

control (EHS)

If your telephone has a built-in electronic hook switch, supporting either

the DHSG or the MSH standard, you require the corresponding connection

cables. Other hook switch standards require suitable adapter cables which

convert the control signals to the DHSG standard (see “Accessories and

spare parts” on page 36).

DW Pro1/Pro2 DHSG setting

Other standards

Adapter cable

e.g. Cisco, Avaya, Polycom

DHSG standard

DHSG cable

e.g. Siemens, Aastra, Agfeo, etc.

DW Pro1/Pro2 DHSG setting

If your telephone has a built-in electronic hook switch supporting the DHSG

or the any other hook switch standard (except for the MSH standard):

왘 Set the DIP switch  # 1 to the lower position.

왘 Set the DIP switch  # 2 to the upper position.

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Sennheiser Pro1/Pro2 User Manual Page 14