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GDK-20W DIGITAL WIRELESS KEY TELEPHONE SYSTEM
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SECTION 4. ISDN DESCRIPTION
4.1 ISDN Boards in GDK-20W
1. There are two kinds of ISDN Cards on GDK-20W system, as follows.
Board Type STIB STIB 2 Remark
Option 1 Port 2 Ports
Interface S/T Up: S/T
Down: T
S/T Interface in STIB can be selected by changing
the Jump Switch on the STIB Board.
Maximum number of
cards on GDK-20W.
2 Card 2 Card
2. You can install STIB within the station and CO line capacity of the system.
MODEL Max. Stations Max. CO Lines
GDK-20W 34 8
3. The maximum 8 ISDN devices can be connected to the single S-Interface port, and any kind of ISDN
devices, which are compatible with ETSI ISDN specification, can be connected to the S-Interface. For
example, ISDN phone, G4 Fax, video terminal, ISDN PC card, etc. can be connected.