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CAMAC - 3939 Byte-serial, Fiber Optic U-Port Adapter View Datasheet Request Ordering Information     ABOUT 3939 The Model 3939 is a single-width U-Port adapter module used in CAMAC Serial Highway systems operating in byte-serial mode to five megabytes per second. A unique clock restorer allows full five megabyte per second operation with up to 62 remote crates. U-Port adapter options allow a maximum fiber optic cable length of one kilometer or three kilometers. When the elements of a CAMAC Serial Highway system are operated in byte-serial for maximum data rate, the D-Out port from the serial driver (SD) or serial crate controller (SCC) provides one balanced pair for clock and eight pair for the associated data byte. The 3939 transmitter serializes each byte and transmits the data at ten times the SC clock rate over a single fiber optic cable. The downstream 3939 receiver converts this serial word to a clock and eight data bits for presentation to the SCC or SC D-In port. The 3939 can be used with a Type L-2 serial crate controller (such as the Model3952) or with a serial driver (such as the Model 3992 or 3994). The Model 1739U-Port Adapter is used with the 2050- or 2160-Series Serial Highway Drivers.

Features Fiber optic cable isolation of CAMAC Serial Highway Operates in byte-serial mode with a single fiber optic cable loop Options available for one kilometer and three kilometer maximum cable length Includes strap-selection for 5, 2.5, and 1 megabyte per second Unique clock restorer circuit allows five megabyte operation with up to 62 remote crates External batteries can be used for power-down backup Applications Isolated fiber optic highway for Serial Highway Drivers and Type L-2 serialcrate controllers Systems requiring excellent immunity from electromagnetic or electrostatic interference Remote systems operating at a high potential difference Systems requiring maximum Serial Highway data throughput -- Jump to Data Acquisition Product -- Counters and Pulse Output Modules Relay Multiplexer Mainframe/Chassis Analog and Digital I/O Analog I/O and Signal Conditioners Counters and Pulse Output Modules Digital Input and Output Memory, Controllers, DSPs & Mainframes Modules for the V710 Termination Panel Signal Conditioner Chassis Special Functions Termination Assemblies and Panels VME to VXI Carrier/Adapter Card VXI Software Applications, Drivers, etc. Grand Interconnect Analog Input Analog Output Cables and Connectors CAMAC Equipment Controllers & Misc. Counters, Timer and Clock Module Digital Input Digital Output Display Memory Modules Process Interface Special Function Modules Software Drivers Transient Recorder Modules Instrumentation Recorders Signal Conditioning Systems Data Loggers/Recorders Temperature Loggers Cyber Systems Data Acquistions Systems Return to Product Category