UN9/576
UN9/577
UN9M/578P
UN9/579
UN9/580
UN9/58l
UN9/582
UN9/583
UN9L/584
UN9/585
UN9/586
UN9/587
- 387 -
UN9
Meter Switching Unit used in MN2M/5l8 to measure the d.c.
outputs from MN2M/5l3 on an external meter. CHl/43B,
coding
1,
4,
10.
DD 1970.
DD Spec 11.112.
ACO.
OBSOLESCENT.
Video Switch Unit used in PAlM/560 to switch in or out the
test signal from the video waveform. CHl/43, pegs 1, 3,
11. DD 1970. DD Spec 5.203. ACO. OBSOLESCENT.
Split Screen Switch Unit to enable simultaneous
comparisons to be made of two video signals, e.g. before
and after passing through a network. Includes UN16/5l0,
GE6/5l8, UN9/577 in CS2/l3A. DD 1970. CANCELLED.
Video Switch Unit used either as a bipolar video switch
for split screen application (soft or hard edge) or as two
independently driven video cut/fade elements with a common
output. Can also be used as a two channel video mixer
with independent operation by two 0-5V control potentials.
Two isolated outputs, with polarity of signal switchable
by means of a 50V relay. Mains operated. CHl/12A, pegs
49, 77. DD 1971. DD Spec 8.416. OBSOLESCENT.
Data Changeover Switch Unit consisting of a 9 pole 2 way
electronic data changeover switch for positive logic
signals. 9 inputs, 18 outputs, 1 control input. 33 way
ISEP board. DD 1971. OBSOLESCENT.
Data Changeover Switch consisting
electronic data changeover switch
signals. 18 inputs, 9 outputs, 1
ISEP board. DD 1971. OBSOLESCENT.
of a 9 pole,
for positive
control unit.
2 way
logic
33 way
Video Switch Unit for serially
automatically or for individual
switches. CHl/43B. DD
OBSOLESCENT.
switching 5 video inputs
selection manually by push
1971.
DD Spec 11.132.
Double Diversity Switch Unit for comparing the output from
two receivers as regards AGC level and presence of syncs
and selecting one of them. CHl/12A. DD 1971.
DD Spec 6.186.
DDTM 6.93.
EDI lOl~6(1)NOV7l.
OBSOLESCENT.
Soft-edge Video Switch Unit comprising UN9/579, GE2/604,
PN3A/37B.
DD 1971.
DD Spec 8.417.
DDTM 8.307.
EDI 10093(1)JUN71. OBSOLESCENT.
Display Position Switch Unit for positioning the clock
display horizontally and vertically. Contains PS2/22A and
PS2/22B. CH1/26A. DD 1971. DD Spec 7.253. OBSOLESCENT.
Event Switch Unit used in
Non-standard double sided
298mm x 228mm x 57mm with
OBSOLESCENT.
EP5/509 on master control panel.
board and chassis, dimensions:
35 way edge connector. DD 1971.
Vision Carrier Monitor Switch Unit, used in EP14M/506 to

87