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BX5

OBSOLESCENT.

BX5/l3

Box, Relay, Seconds Intergrating used on

DD 1956/60. DD Spec 3.293. OBSOLESCENT.

BA4/4.

BX5/l4

Box, Relay, Minutes Integrating used on

DD 1956/60. DD Spec 3.293. OBSOLESCENT.

BA5/4.

BX5/l5

Box, Relay, Hours Integrating used on BA4/4. DD 1956/60.

DD Spec 3.293. OBSOLESCENT.

BX5/l6

Box, Relay, Days Integrating used on BA4/4. DD 1956/60.

DD Spec 3.293. OBSOLESCENT.

BX5/17

Box, Relay, G.T.S. Contains four digit switches with lamp

indicators giving time indication. DD 1956/60.

DD Spec 3.293. OBSOLESCENT.

BX5/18

Box, Relay, GTS Auxiliary. Accommodates relays which in

conjunction with BX5/17 form a G.T.S. Unit. DD 1956/60.

DD Spec 3.293. OBSOLESCENT.

BX5/19

Box, Relay, Sync and Fuse Alarm used to give alarm when

time integrators on G.T.S. Units fail to function

correctly. DD 1956/60. OBSOLESCENT.

BX5/24

Te1ecine Projector Interlocking Relay Box used where a 3

phase supply is not available. Electrically interlocks a

single channel Pye telecine projector drive to its

associated SEPMAG recorder when they are fitted with a

single phase se1syn or GEC twintorq machine. Box 380mm x

l33mm x 95mm. SCPD 1967. OBSOLESCENT.

BX5/25

Used at Newcastle in association with PA6/55 at Manchester

to indicate condition of a switch at Manchester on the

Manchester-Carlisle switching system. 5lmm x 89mm x

l14mm. DD 1967. WITHDRAWN.

BX5/26

Safety Relay Box used in OB vehicles to trip the mains in

the event of a reversed polarity, excess voltage (240

maximum), earth fault condition or lack of adequate earth.

DD 1968. WITHDRAWN.

==========================================================================

BX5 Sub Group not available for new designs DD 1977.

BX6 SWITCH BOXES

BX6/1

Used at Douglas, Isle of Man, for remote switching of UHF

link receivers in conjunction with BX5/5 and PA17/23

installed at Snaefell. DD 1957/60. OBSOLESCENT.

BX6/2

Similar to

facilities.

BX6/l but

Installed

has

at

two additional switching

Douglas. DD 1957/60.