panel for 3U high
racking with 96 way Euro-connector.
UHF Filter Relay Unit. The unit contains
will select either of the two UHF input
frequency changeover in the RC4M/8B
Connections are made by 5MB flying
requirements +12V d.c. pcb 100mm x 40mm.
RC4M/8B. DD 1983. DDMI 5.428(83).
two relays which
filters to allow
Relay Unit. Used to switch the outputs of VHF
quali ty moni toring receivers remotely via relays.
requirements +5V DC 250mA. 4u unsupported PN1/29J.
equipment EP15M/9. EP15M/10 (MIC). DD 1983.
Outgoing Relay Unit. Provides 12 TTL driven relay circuits
with contacts rated at 0.5 Amp. Drawing SP.30446. Power
requirements 7.5 V d~. PCB 111.76 x 254. SCPD 1983.
Synthesiser Interface Relay Unit. Contains relays to
control of a Marconi sender and revertive input lines.
Power requirements +5 V. Diecast box. 93.7 mm x 119.1 mm x
52.4 mm. Parent equipment PA1/130. DD 1984.
Relay Unit. Contains 16 relays for driving on-air cues and
external equipmet associated with the EP1M/519 TK-PPA
mixer. Located in the EP1M/152 Analogue Interface unit.
equipment EP1M/38A. DD 1984.
Telephone Select Unit. Relay Unit. Transistor-driven
interface relay unit for use in Telephone Effects Unit
UN4/10. The unit interfaces any standard approved British
Telecom telephone instrument with a ring/tone effects
generator. The unit consists of a select/de-select key.
and LED indicators for 'selected'. 'ringing' and 'engaged'
(handset lifted). Power requirements +24 V and 25 V
regulated. Non-BBC. H 114 x D 203 x W 50 mm (3U). Parent
equipment UN4/10. Communications and Engineering Services
Relay Unit. 8 x 4 changeover relays. identical to that
design covered by S.C.P.D Drawing SP31846. but fitted on a
Power requirements +24 V.
3 U Eurocard
(100 mm x 220 mm) Parent equipment UN23S/l75A & B. SCPD
P.A. Relay Unit. A Panel with Relays and Tag Block that
switches (on demand) control lines and audio pairs through
to P.A. as an extended or remote control/monitoring
facility. BBC chassis 2U x 19". TCPD 1986.
Clock Generator Unit. Similar to UN23/l5 but with
additional circuits to enable unit to be used with P .C.M.
coder monitor. IMHOF CDX. Parent equipment BA1/4. DD