UN090039 UN9/39
Switching Unit.
indication panel
Panel. CH1/64J.
Interprets position of switches on
for VHF Radio Control and Indication
DD 1977.
UN090040 UN9 /40
Store
Switching
Unit.
Three
separate
logic
changeover
"switches" all two way, one with eight poles, two with six
poles. Used in MIC switching system for fast changeover
between two pre-selected sources. CH1/64J. DD 1977.
UN090041 UN9/41
Test
Tone
Switching
Unit.
10
printed
circuit
boards
mounted Lippa Issostatt changeover switches on 3U high ISEP
card with edge connection to 80 way UECL connector. SCPD
1977 .
UN090042 UN9/42
Switch Unit.
3U high ISEP card containing 3 x 8 way solid
state destination routing switches (unbalanced). Used on
CMCR EMX systems. SCPD 1977.
UN090602 UN9M/602
Diversity Switch Unit.
The unit is fed with the vision and
sound ouputs from two receivers and automatically selects
the better signal. Designed for use at transmitter sites
where propagation abnormalities require diversity
reception; incorporates automatic equalisation. PN3/54
with hinged rear cover carrying relay sub-assembly etc.
Sub-units EQ5/542, MA1/3, MA1/503, PS2/184, PS2/187G,
UN1/723, UN23/636. DD 1977. EDI 10325(P)OCT77.
UN090603 UN9/603
Code
Switching Unit.
Part
of modification
to EP1M/527.
BBC ISEP card. DD 1977.
UN090604 UN9/604
Three Way Switch Unit used to switch between three 26 bit
parallel digital inputs i.e. 26 pole, 3 way digital switch
- TTL levels. 5U CDX unuspported card. DD 1977.
UN100012 UN10/12
Telephone Unit
superseding UN10/7
for use with Telephone
No.7l3. Not suitable for Telephone PO No.246 or handset
with differential transmitters. Printed circuit board
x 54mm. DD 1967. DD Spec 3.466. ACO
UN100033 UN10/33
Telephone Dialling Unit for OB's used in conjunction with
UN10/34. Provides the OB with dialling facilities over
links and accepts incoming calls. Diecast box l78mm x
l27mm x 57mm. Power requirements +24V d.c. DD 1976.
DDMI 6.295(77). DDHB 6.138(76).
UN10/33A
Telephone Dialling Unit.
Provides the OB with dialling
facilities over links and accepts incoming calls. As
UN10/33 but mounted on a CH1/65B chassis. Power
requirements -36V or -24V. CH1/65B. SCPD 1983.
UN100035 UN10/35,35A Telephone Interface Unit. Interfaces between incoming line
and telephone instrument 713 with P03 handset. Unit
includes a ring detector and ring out relay. Incorporates
a bell, receive amplifier and facilities for switching to
high impedance listen only. "A" version does not have high
impedance listen mode. Intended for use with UN10/36.
SCPD 1977.
UN100036 UN10/36
Telephone Line Selector Unit.
Provides ring detection and
selection
for
5
telephone
lines.
Latched
indication
of
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