Model 77 - Card Mounted Sync-Async Short Haul Modem
Features
Full Duplex Sync/Async 19.2 KBPS
Clocking from External, Internal or Received Data
Compatible with Model 92
Loopback Switch for Simple Diagnostics
Mounts in Model 76-3 Card Cage
Product Description
The Model 77 Synchronous Short Haul Modem contains the same circuitry
as the Model 92 thus enabling them to communicate with each other over
any communications link. Up to 14 Model 77's can be placed in a Model
76-3. Installation and diagnostics are simplified with the Model 77
by virtue of the loopback switch and the six LED indicators.
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