Cisco Unity Installation Manual page 142

Dialogic D/160SC-LS
voice board
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UNITY INSTALLATION GUIDE
Hardware settings
Do the following procedures as you install voice boards.
To set the SW100 switch
For each Dialogic ISA voice board that has a rotary switch,
set the rotary switch to a unique value starting with 0 and
continuing in sequence.
For example, set the rotary switch on the first three ISA
voice boards in the Unity server as shown below. This is also
the order in which you install the boards in the server.
First ISA board
Second ISA board
Third ISA board
To set the SW4 switch
Set switch SW4 to "Off hook" on all boards as shown below.
Off hook