Cables

Cables
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Cables

The SEM system uses many cables, some of them available in different lengths. Nearly all cables come complete with connectors. Exceptions are the battery cable that has eyelets on the battery side, and some simpler cabling like the connection between antenna and antenna tuner, or the field wire used to connect the Remote Control set. Apart from cables the system uses an amazing number of earth connections, all made out of woven metal strips.

Cables are most readily identified by their connectors - i.e. the numbers of those connectors. All parts of the system show these numbers stencilled next to each connector, nearly all cables are also marked with these numbers next to their connectors, though in some instances these markings will have disappeared over time.

Due to the many different vehicles to be fitted, cables come in different lengths. The only way to identify a specific cable is through it's Versorgungs Nummer, the NSN. One would expect to find a certain systematic approach there, but a recent find of a complete set of cabling for mounting a double set in one specific vehicle proofs this to be a wrong assumption: the numbering turned out to be in near perfect numerical order. So now it seems highly likely that the cables were actually manufactured and numbered for each individual mounting set, using NSN's that hold no real logic. An unexpected approach, as this means some cables with the same length - or at least, very near to each other - will be available under wildly different Versorgungs Nummer. This makes the logistic problem as well as manufacturing more complex.

Also, somewhere in the 1980's the system seems to have changed. Newer cables show cable numbers as well as connector numbers on each side of the cable, the old system only had connector numbers. The newest versions of the manuals show these cable numbers, older ones do not. Some cable numbers seem to be ambiguous, the same number might be used for different purposes, though the actual cable is indeed the same.

SEM 25 & SEM 35 cables
Number Connector Connector Vers.-Nr. Length Use Remarks Part of

3 1 Eyelets 5995-12-147-1056 1 mtr Power from battery One side has eyelets

2 2 2 5995-12-174-9322 5.9 mtr Power distribution Light power cable

2 2 2 5995-12-180-7884 ? Power distribution

10 10 10 5995-12-180-6375 ? Vehicular Antenna Tuner Control for SEM 35 portable transceiver on vehicular mounting Also 10-10 cables exist - difference unkown

10 10 10 5995-12-150-1017 10 mtr Antenne-Standbetrieb SEM 25/35

11 11 11 ? ? Außenbord Bediengerät - Außenbord Sprechstelle

12 12 ? ? Außenbord Bediengerät - Armaturtafel

13

14 14 14 5995-12-143-1106 6.5 mtr Antenna signal from Vehicular Antenna Tuner to SEM 25

14 14 14 5995-12-145-4586 2.5 mtr Antenna signal from Vehicular Antenna Tuner to SEM 25

15 15 15 ? ? Antenna signal from Antenna Tuner to EM 25

16 16 16 5995-12-180-6386 ? Transceiver/Receiver Control Box

20 20 5995-12-148-3102 20 cm Power for SEM 35 portable transceiver on vehicular mounting Unusual: one male and one female connector SEM 35 Ergänzungssatz 3

21 45 5995-12-148-3104 30 cm Audio signals for SEM 35 portable transceiver on vehicular mounting Connector 45 is U-77/GR angled. SEM 35 Ergänzungssatz 3

22 22 5995-12-148-3103 25 cm Controls for SEM 35 portable transceiver on vehicular mounting SEM 35 Ergänzungssatz 3

23 23 5995-12-148-3101 23 cm Antenna signal for SEM 35 portable transceiver on vehicular mounting SEM 35 Ergänzungssatz 3

41 41 41 ? ? BV Bediengeraet - Außenbord Bediengerät

51 51 51 5995-12-180-6383 ? Signals and controls. Hooks up B.V. Verstärker (On-board Communications Amplifier) to Grundplatte (Mounting)

51 51 51 5995-12-174-9323 7,2 mtr Signals and controls. Hooks up B.V. Verstärker (On-board Communications Amplifier) to Grundplatte (Mounting)

51 51 51 5995-12-143-9169 2,5 mtr Signals and controls. Hooks up B.V. Verstärker (On-board Communications Amplifier) to Grundplatte (Mounting)

52 51 52 5995-12-180-7883 ? Signals and controls. Daisy-chains multiple sets

51 52 5995-12-142-2868 25 cm Signals and controls. Daisy-chains multiple sets