Product Summary
Model 73A SCSI Crate Controller
Option now available for Level 1 FASTCAMAC
STANDARD INTERFACE FOR WIDE VARIETY OF PROCESSORS
DECstations - VAXstations - Alfa - Macintosh - IBM PC's & Clones and othersFAST TRANSFER RATES
The Jorway Model 73A allows up to 7 CAMAC Crates to be controlled by a personal computer or workstation using the popular Small Computer System Interface (SCSI) Bus. The single-ended SCSI bus is employed, allowing a maximum bus length of six meters. A high speed Schottky RISC microprocessor rapidly executes SCSI protocols. A FIFO buffer allows simultaneous Dataway and SCSI transfers, with a maximum transfer rate of 2 Mbytes/sec. in either Synchronous or Asynchronous SCSI mode.
2 Megabytes per second in standard block transfers
7.5 Megabytes per second read transfers with FASTCAMAC Option
A Level 1 FASTCAMAC option is now available on the Model 73A. When a F(5) read command is selected, FASTCAMAC block reads transfer data every 400 nanoseconds providing a 7.5 megabyte transfer rate for 24 bit data and 5 megabyte per second for 16 bit data.
The Model 73A functions as a master controller occupying the rightmost stations in the crate. It however supports the ACB (Auxiliary Control Bus) for operation with other auxiliary controllers in the crate. An optional version, the Model 73A-1, can operate as either a Master or Auxiliary Controller, allowing more than one Crate Controller to reside in a single Crate.
The Model 73A and 73A-1 are a double width CAMAC modules implementing most of the features of IEEE standard type A1 controller including a station number register and N26 (all N's).
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