Error Corrector Coder. The unit adds redundant check in-
formation to an input signal using the Reed-Soloman (63,
59) code, interleaved six ways. Input and output is in the
form of 6-bit words, with 11.456MHz clock and a frame-
marker pulse, all at TTL levels. The unit forms part of
equipment CD4M/504 which multiplexes together digital video
and other signals to produce an output signal at 68Mbit/s.
Power requirements +5V at current to be advised. 4U
solderwrap card with 'J' width Front Panel. Parent equip-
ment CD4M/504. DD 1982.
DPCM Coder. 6U printed circuit board
the 68 Mbit/s transmission equipment
requirements +5 V at 1 A, -5 V at 4
printed circuit board. DD 1984.
for DPCM coding in
(Mark 11 ) . Power
A. 6U unsupported
Parallel Interface Coder. This equipment generates a bit-
parallel word-serial digital video output which conforms to
CCIR Rec 656 from analogue inputs of YUV or RGB and mixed
PA20/541. Sub-units GE7/509, C011S/503, C08S/512,
AM23/521C. D&ED (V) 1987.
Decoder for measureing stereophonic sound
CH1/64B replaces CD3/1, CD3/2. DD 1976.
A.F.R. Data Decoder. Converts serial fault reporter data
into a parallel form suitable for driving as even segment
display and a printer. The input signal from a fault
reporter is obtained from a connection to the telephone
system. The print out on 60mm paper roll includes the time
that the message was received. 4u BMM chassis. DD 1977.
Single Instruction Decoder. Unit accepts decoded tens and
units input and combines them into gates to produce
operating pulses. Both TTL and relay contacts outputs are
available. Part of the instruction decoding system for
Monitoring and Information Centres. 4U unsupported card
with J size front panel. DD 1977.
Dual Instruction Decoder. Unit accepts decoded tens and
units input and combines them in gates to produce operating
pulses. Part of instruction decoding system for Monitoring
and Information Centres. 4U unsupported card with J size
front panel. DD 1977.
Stereophonic Decoder working on the Zenith-G.E. system and
was designed principally for use in the RC5L/10 RBL
receiver. The input is 75Q unbalanced and requires a IV
p-p multiplex input for an output of +IOdBm into 600Q from
left and right channels. Auxiliary monitoring outputs are
also available. Power requirements +18V, -5.2V. CH1/64A.
DD 1977. EDI 10357(I)SEP79. DDMI 5.408(82).
Stereophonic Decoder. This unit accepts a multiplex signal
at standard level and decodes this to produce left and
right stereo outputs. The unit is derived from, similar to
and compatible with a CD3/23. The difference between the