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UN1
UN1/660
Receiver Base Unit, part of RC1L/507, containing
demultiplexing and error checking circuits. Unsupported
printed circuit board for mounting in PN3/53. Indexing
positions 1, 2, 8. DD 1971. OBSOLESCENT.
UNl/661
Digital Transmitter Unit, to work in conjunction with
TMlL/502. Accepts 16 digital signals and time division
multiplexes them for transmission. Unsupported printed
circuit board for mounting in PN3/53. Indexing positions
1, 2, 5. DD 1971. OBSOLESCENT.
UNl/662
Digital Receiver Unit, to work in conjunction with
RClL/507 for demultip1exing 16 digital signals.
Unsupported printed circuit board for mounting in PN3/53.
Indexing positions 1, 2, 9. DD 1971. OBSOLESCENT.
UNl/663
Analogue Transmitter Unit, to work with TMlL/502. Accepts
three analogue signals of 3kHz bandwidth, and codes and
multiplexes them for transmission. Unsupported printed
circuit board for mounting in PN3/53. Indexing positions
1, 2, 5. DD 1971. OBSOLESCENT.
UNl/664
Analogue Receiver Unit, to work in
RClL/507. Decodes and demu1tip1exes 3
Unsupported printed circuit board for
Indexing positions 1, 2, 9. DD 1971.
conjunction with
analogue signals.
mounting in PN3/53.
OBSOLESCENT.
UNl/665
Data Store Unit, used in EPlM/527. Consists of 384 x 8
bit serial data store with start and stop code detectors.
Printed
circuit
board
with
33
way
ISEP
connector.
Indexing positions 3, 13, 29. DD 1971. OBSOLESCENT.
UNl/666
Inverter Unit, used in EPlM/527
bit data signals. Includes a 3
Printed circuit board with 33
Indexing positions 3, 13, 27. DD
to invert polarity of 8
pole, 2 way data switch.
way ISEP connector.
1971. OBSOLESCENT.
UN1/667
Inverter and Monostable Unit used
the polarity of 8 bit data signals.
circuit. Printed circuit board
connector. Indexing positions 3,
OBSOLESCENT.
in EPlM/527 to invert
Includes ~ monostable
with 33 way ISEP
13, 25. DD 1971.
UN1/668
Trigger
GE4M/540
produced.
OBSOLESCENT.
Processing
to enable
CH1/12,
Unit for
EBU ITS
coding
use with ITS Generator
waveform signals to be
pegs 48, 91. DD 1971.
UNl/669
Trigger Unit replacing obsolescent UNl/558
multi trigger facilities at various points in
composite
video
signal.
Produces
video
monitoring and has marker facilities. CH1/55B
printed
circuit
boards.
Indexing
49,
73.
DDMI9.147. OBSOLESCENT.
to provide
waveform of
feed for
with five
DD 1971.
UN1/670
Frame Comparator Unit used in EP1M/528 to compare measured
frame count from moving film with information from punched
paper tape; coincidence causes production of output pulse

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