UN230ll6 UN23/ll6
UN230ll7 UN23/ll7
UN230ll8 UN23/ll8
UN230ll9 UN23S/ll9
UN230l20 UN23/l20
UN230l2l UN23/l2l
UN230l22 UN23L/122
UN230l23 UN23/l23
UN230l24 UN23/l24
UN210125 UN21/125
Subscribers Logic Unit to provide necessary switching for
internal subscribers on CMCR telephone system. Uses CMOS
devices. Power requirements l2V. 3U ISEP card. SCPD
1979.
Shift Register Logic. 2 Section Unit, one half used to
convert 32 input signals to serial output signals, second
hals used to convert serial input signals to 32 outputs
each separately latched; uses CMOS integrated circuits.
Power requirements l2V. 3U ISEP card. SCPD 1979.
Data Entry Control Logic 1. Part of PA6/98 Entry Control
Panel assembly, as used in the SYPHER 2 dubbing suite.
Power requirements 5V at 60mA. 4U unsupported card.
Parent equipment PA6/98. DD 1979.
Data Entry Control Logic 2. Part of PA6/98 Data Control
Panel assembly, as used in the SYPHER 2 dubbing suite.
Power requirements
5V
at
100mA.
4U unsupported card.
Parent equipment PA6/98. DD 1979.
Data Interface l.ogic Control 1. Part of Data Interface
between RD4L/507 and PA6/98, as used in the SYPHER 2
dubbing
suite.
Power
requirements
5V
at
100mA.
4U
unsupported card. Parent equipment RD4L/507. DD 1979.
Data Interface Logic Control 2. Part of Data Interface
between RD4L/507 and PA6/98 as used in the SYPHER 2 dubbing
suite. Power requirements 5V at lOOmA. 4U unsupported
card. Parent equipment RD4L/507. DD 1979.
VHF Drive System Control Unit. Controls drive selection on
VHF FM relay stations. Comprises one UN23/l05 control unit
with a PS2/236 Power Supply, mounted together in a PN3A/50B
termination panel fixed to a PN3A/ 53M termination box.
Power requirements 240V a.c. 50Hz mains. CH1/64A. Sub-
units UN23/l05 and PS2/236. TCPD 1979.
Studio Signalling Control Unit. Printed circuit board
mounting 2 studio red light signalling circuits. Power
requirements :!:12V, -50V, :!:6V. 3U card. Parent equipment
EP10/18. Sub-unit PA6/90. DD 1979. DDMI 3.673(80).
DDTM 3.239(80).
Splice and End of Tape Detector. This printed circuit
board is mounted on the tape transport deck of the EPl/17
tape reclamation equipment. It carries the splice and end
of tape detectors to provide the control logic output
associated with these functions. It also carries the
current sense resistors for the erase and record head and
the bias adjustment control. Power requirements +5V at
lOmA. Printed circuit board approximately lOOmm x 30mm.
Parent equipment EPl/17. DD 1979. DDMI 7.444(80).
Motor Relay Interface Control Unit. This unit carries the
logic circuitry which interfaces the switches of the PA6/71
control panel to the solid state relay of the PA17/171, all
forming part of the EP17/1 tape recl amation equipment.
Power requirements +12V at 30mA. Printed circuit board
315

15