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Ce n'est pas un travel guide

Tel Electronics Inn-Form XL

Tel Electronics Inn-Form XL

This device is a Tel Electronics Inn-Form XL which interfaced with a PBX system using a serial data connection to process SMDR (phone switch call accounting) data. This kind of unit retails new for $1000s even today, if you could even find someone to buy it. It is a relic of a PBX system that was shut off long ago. The parallel port connection seen here is a printer interface.

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Plus icon EXIF data

X-Resolution72 dpi
Y-Resolution72 dpi
Exposure0.033 sec (1/30)
Aperturef/3.5
Exposure Bias-2/3 EV
Focal Length18 mm
Focal Plane X-Resolution4433.295337 dpi
Focal Plane Y-Resolution4453.608247 dpi