15 December 1965
The SB-640(XN-1)/BP is designed to switch radar
information from five radar sets to nine remote repeaters.
Switching is accomplished by use of identical switch and
amplifier assemblies, each assembly supplying
information to one repeater, and selection of radar
information is accomplished by remotely controlling the
position of the switch in each assembly.
Separate video amplifier, power supply, and trigger
Total - 13.5 amp
regeneration circuits are provided for each repeater.
Switch Unit (each) - 1.2 amp
Consequently, failure of any assembly in the switchboard
Amplifier Unit (each) - 0.3 amp
affects only one repeater. One section of the frame is
Operating Voltages and Power Requirements:
specially wired to permit presentation of AN/BPS-4 radar
115v, 60 cps, 3-ph
information on SS series radar indicator console in
addition to the normal SS/ST presentation. Provisions
are also included for the distribution of selected IFF from
three radar sets.
The SB-640(XN-1)/BP is intended for radar repeater
system on submarine installations.
RELATION TO SIMILAR EQUIPMENT
PRINCIPAL COMPONENTS AND PHYSICAL DATA
Radar Signal Distribution Switch- 1 75-1/2
board SB-640(XN- 1)/BP
REFERENCE DATA AND LITERATURE