
4.4 Connecting The IST Module
The IST Module (product code IMIST–xx) consists of a circuit board with attached ribbon cable, an AC
wall transformer assembly, a rear pedestal panel with jack openings, and mounting screws. The IST
Module installs inside the existing adjustable pedestal of certain model Impact SCS telephones and
provides a means whereby installers can add IST equipment to the same station port that its host
telephone occupies.
The IST Module works in conjunction with the following Impact SCS telephones and mounts inside the
adjustable pedestal:
•
8412F 12 Line Full-Duplex Large Screen LCD Speakerphone
•
8412S 12 Line Half-Duplex Large Screen LCD Speakerphone
•
8324F 24 Line Full-Duplex LCD Speakerphone
•
8324S 24 Line Half-Duplex LCD Speakerphone
•
8312S 12 Line Half-Duplex LCD Speakerphone
•
8212S 12 Line Half-Duplex Speakerphone
•
8212N Multiline Proprietary Telephone
•
8201N Single Line Proprietary Telephone (see note)
NOTE: On systems that require a DATA button to activate the IST Module, users must do this
activation remotely since the single-line proprietary telephone does not provide programmable
buttons that can serve as a DATA button.
The IST Module is fully operational with the FXT System, and functions simultaneously with the host
telephone.
General Description 4 – 5
General Description GCA40–215
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AC Wall Transformer
IST Equipment
ist_ped.cdr
Identifying IMIST Device Connections
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