Foreword
Taken from the 1968 Marconi Catalogue.
Line Communications Division was created in 1956 to direct the Company's expertise in digital techniques towards certain problems that had arisen in telegraph and telephone communications. It was clear that new transmission techniques and a greater degree of automation were needed to keep abreast of the tremendous growth in telecommunications traffic.
In the short time since its formation, the Division has made a breakthrough by winning large contracts from the British Post Office for pulse code modulation equipment. The Division has also won contracts for an automated message switching system, MARS, and is nearing completion of an electronic teleprinter which will go into production this year.
It had, of course, taken on responsibility for the further development and marketing of the Company's well-established digital communications equipment - such as Marconidata, Autoplex and Autospec, all of which have successful sales histories.
Line Communications Division keeps in close touch with markets and trends in relation to technical developments and canthus be sure that its development and production effort is directed towards fulfilling the greatest user needs with equipments that incorporate the most advanced techniques.
The following year, in 1969, saw an increase in focus on telegraph transmission systems and multiplex carrier equipment. An introduction to these new products, and others, is available here and here.
Products
|
Name or Model No. |
Approx. Date |
Description |
Details |
Comments |
|
|
|
|
|
|
1952 |
Radio Telephone Terminal Type B |
here |
Siemens-Marconi joint venture |
|
1952 |
Constant Volume Amplifiers |
here |
Siemens-Marconi joint venture |
|
1952 |
Channel Shifting and Restoring equipment |
here |
Siemens-Marconi joint venture |
|
|
|
|
|
HW11 |
< 1958 |
Five-Band Privacy equipment |
here |
Siemens-Marconi joint venture |
HW12 |
< 1958 |
Simplified Five-Band Privacy equipment |
here |
Siemens-Marconi joint venture |
HW21 |
> 1958 |
Radio Telephone Terminal |
here |
Siemens-Marconi joint venture |
HW22 |
< 1958 |
Radio Telephone Terminal |
here |
Siemens-Marconi joint venture |
HW23 |
1960 |
Radio Telephone Terminal |
here |
Siemens-Marconi joint venture |
HW31 and HW32 |
< 1958 |
Constant Volume Amplifiers |
here |
Siemens-Marconi joint venture |
HW41 |
< 1958 |
Channel Shifting and Restoring equipment |
here |
Siemens-Marconi joint venture |
HU20 Series |
1961 |
'Autoplex' equipment |
here |
|
HU120 Series |
1962 |
Transistorised 'Autoplex' equipment |
here |
|
HU126 |
< 1968 |
Seven-unit Monitor |
here |
|
|
|
|
|
|
|
1961 |
Transistorised Channelling equipment |
here |
ATE-Marconi joint venture |
|
|
|
|
|
H1851 |
< 1968 |
Patching, Monitoring and Ancillary equipment for Transmitters |
here |
|
H2851 |
< 1968 |
Patching, Monitoring and Ancillary equipment for Receivers |
here |
|
|
|
|
|
|
H5000, H5001 |
1964 |
Transistorised VF Telegraph equipment |
here |
|
H5010 Series |
1965 |
VF Telegraph Terminal |
here |
|
H5011 |
1965 |
FSK Tone Demodulator |
here |
|
H5100 |
< 1964 |
'Autospec' equipment |
here |
|
H5510 |
< 1968 |
Radio Telephone Terminal |
here |
|
H5510 Series |
1969 |
Radio Telephone Terminal incorporating 'Lincompex' |
here |
|
|
|
|
|
|
H6000 Series |
1964 |
'Marconidata' equipment |
here |
Introduction to 'Marconidata' here |
H6010 Series |
< 1966 |
'Marconidata' equipment |
here |
|
H6020 Series |
< 1966 |
'Marconidata' equipment |
here |
|
U1110 |
< 1968 |
'Marconidata' equipment |
here |
|
|
|
|
|
|
U1310 |
1968 |
24-channel PCM Transmission system equipment |
here |
|
H7027 |
< 1968 |
1+1 Carrier Multiplex equipment |
here |
|
|
|
|
|
|
MC124 |
1965 |
24-channel VF Telegraph equipment (line) |
here |
Marconi Italiana |
Piccolo |
1969 |
Telegraph Transmission system |
here |
|
|
|
|
|
|
MX120 |
1969 |
120-channel Carrier Multiplex equipment |
here |
Marconi Italiana |
MX150 Series |
1965 |
12-channel Carrier Multiplex equipment |
here |
Marconi Italiana |
MA150 and MX150 Series |
< 1968 |
12-channel Carrier Multiplex equipment |
here |
Marconi Italiana |
MX166, MX169 |
< 1968 |
24-channel Multiplex equipment |
here |
Marconi Italiana |
MX170 and MX171 |
< 1968 |
120-channel Carrier Multiplex equipment |
here |
Marconi Italiana |
MX180 Series |
< 1968 |
960-channel Multiplex Carrier equipment |
here |
Marconi Italiana |
MX190 Series |
1968 |
12-channel Carrier Multiplex equipment |
here |
Marconi Italiana |
|
|
|
|
|
MARS |
< 1968 |
Marconi Automatic Relay System |
here |
|
|
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