Features, Additional v.54 features, Technical specifications – Black Box COMPACT T1 MT850A User Manual
Page 501: Controller software required, Service interface, Features -3, Additional v.54 features -3, Technical specifications -3

Compact T1 - Release 6.1
15-3
V.35/V.54 Cards
Features
Features
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Provides any n x 56/64 Kbps data rate up to 1.536 Mbps on each port
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Supports full non-blocking cross-connection of all timeslots to any T1 access line
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Enables up to 12 V.35 ports may be equipped in a single Compact T1
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Allows a total of 24 V.35 ports to be equipped in two Compact T1, occupying
only two rack units of equipment space in a 19-inch rack
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Includes integration of T1 CSU/DSU functionality and remote management
capabilities
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Supports adaptation and transport over TDM facilities
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Integrates frame relay or private line V.35 services with voice and Internet access
over T1 lines
Additional V.54 Features
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V.54 Loop Test capability
Technical Specifications
Controller Software Required
T1 Controller
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Release 1.2.2 or higher is required for the V.35 card
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Release 3.0 or higher is required for the V.35/V.54 card
Service Interface
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Two V.35 interfaces:
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DCE to DTE pinout
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Two sub-miniature DB-26 connectors
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Adapters outlined below