SEM 25 & SEM 35 connectors
as found on the different parts of the sets
| Nr. | 
Purpose | 
Location(s) | 
Description | 
Type number | 
| 1 | 
System power in | 
Überspannungsschutz
(Transients Filter) | 
Female, 2-pins, round 3 notch bayonet, 5 external notches,
ext. diam. 25.8 mm. | 
 | 
| 2 | 
Power distribution | 
Überspannungsschutz
(Transients Filter)
 S/E 25 Grundplatte
(Transceiver Mounting)
 E 25 Grundplatte
(Receiver Mounting)
 B.V. Verstärker
(On-board Communications Amplifier)
 S/E 35 Grundplatte
(Transceiver Mounting)
 Verteiler NF (Audio
Junction Box) | 
Male, 2-pins, round 3 notch bayonet, 5 external notches,
ext. diam. 25.8 mm. | 
 | 
| 3 | 
Mounting to transceiver/receiver
 Carries all signals and controls | 
S/E 25 Grundplatte
(Transceiver Mounting)
 Sender-Empfänger
25 (Transceiver)
 E 25 Grundplatte
(Receiver Mounting)
 Empfänger 25
(Receiver) | 
 | 
 | 
| 9 | 
Signals and controls
 Daisy-chains BV-Bediengerät
 (Local Communications Control Box) | 
B.V. Verstärker(On-board
Communications Amplifier)
 BV-Bediengerät(Local
Communications Control Box) (Two connectors on each) | 
 | 
 | 
| 10 | 
Antenna tuner control | 
Antennen-Abstimgerät
(Antenna Tuner)
 S/E 25 Grundplatte
(Transceiver Mounting)
 S/E 35 Grundplatte
(Transceiver Mounting) | 
Male, 12-pins, centrally 4 bigger ones, 2 x 4 smaller
on the outside, round 3 notch bayonet, 5 internal notches, ext. diam. 22.2
mm.
 CHECK WHETHER THIS ONE IS FEMALE
ON BOTH SIDES | 
 | 
| 11 | 
Audio accessories  | 
Außenbord-Bediengerät
(Extra Vehicular Control Box)
 Außenbord-Sprechstelle(Extra
Vehicular Telephone) | 
 | 
 | 
| 12 | 
Power (Armaturtafel) (Juncton Box?) | 
Außenbord-Bediengerät
(Extra Vehicular Control Box) | 
Unknown | 
 | 
| 13 | 
Field Wire to Fernbesprechgerät
(Remote Control Box) | 
Ortbesprechgerät
(Local Control Box) | 
Two line binding posts for field wire | 
 | 
| 14 | 
Antenna signal - for transceiver only | 
S/E 25 Grundplatte
(Transceiver Mounting)
 Antennen-Abstimgerät
(Antenna Tuner)
 S/E 35 Grundplatte
(Transceiver Mounting) | 
Female | 
 | 
| 15 | 
Antenna signal - for receiver only | 
E 25 Grundplatte
(Receiver Mounting)
 Antennen-Abstimgerät
(Antenna Tuner) | 
Female | 
 | 
| 16 | 
Control, Transceiver | 
S/E 25 Grundplatte
(Transceiver Mounting)
 E 25 Grundplatte
(Receiver Mounting)
 S/E-Bediengerät
(Transceiver Control Box) | 
Female, 23-pins,  1 bigger central, 8 in middle
ring, 14 on the outside, round 3 notch bayonet, 5 internal notches, ext.
diam.  25,5 mm.
 CHECK WHETHER THIS ONE IS FEMALE
ON BOTH SIDES | 
 | 
| 17 | 
Unknown | 
S/E 25 Grundplatte
(Transceiver Mounting)
 E 25 Grundplatte (Receiver Mounting) | 
Not a proper connector, but a capped entry to a six position
screw connection bar | 
 | 
| 18 | 
Un-earthed 600 Ohm audio - loudspeaker | 
S/E 25 Grundplatte
(Transceiver Mounting) | 
 | 
 | 
| 20 | 
Power | 
Sender-Empfänger
35 (Transceiver)
 S/E 35 Grundplatte
(Transceiver Mounting) | 
 | 
 | 
| 21 | 
Audio signals - connects to 45 on SEM 35 | 
S/E 35 Grundplatte
(Transceiver Mounting) | 
Female, 10 pins, 4 in middle row, 3 each in 2 outer rows,
round 3 notch bayonet, 5 internal notches | 
 | 
| 22 | 
Controls | 
Sender-Empfänger
35 (Transceiver)
 S/E 35 Grundplatte
(Transceiver Mounting) | 
 | 
 | 
| 23 | 
Antenna signal | 
Sender-Empfänger
35 (Transceiver)
 S/E 35 Grundplatte
(Transceiver Mounting) | 
 | 
 | 
| 41 | 
Audio accessories 
 Also connects BV-Bediengerät to
 Außenbord-Bediengerät through special cable
41-41 | 
BV-Bediengerät(Local
Communications Control Box) (Two connectors on each)
 Außenbord-Bediengerät
(Extra Vehicular Control Box) | 
 | 
 | 
| 42 | 
Audio accessories  | 
S/E-Bediengerät
(Transceiver Control Box) | 
 | 
 | 
| 43 | 
Audio accessories  | 
Außenbord-Sprechstelle(Extra
Vehicular Telephone) | 
 | 
 | 
| 44 | 
Audio accessories  | 
Fernbesprechgerät
(Remote Control Box) | 
 | 
 | 
| 45 | 
Audio accessories  | 
Ortbesprechgerät
(Local Control Box)
 S/E 35 Grundplatte
(Transceiver Mounting) (Two connectors on each)
 Sender-Empfänger
35 (Transceiver)
 Relaisstellenzusatz SEM 35 (Relay Set SEM 35) | 
 | 
 | 
| 46 | 
? | 
Relaisstellenzusatz SEM 35 (Relay Set SEM 35) | 
  | 
 | 
| 51 | 
Signals and controls. Hooks up B.V. Verstärker to
Grundplatte (51-51), daisy-chains multiple sets - up to three - through
Grundplatte (Transceiver Mounting) (51-52)  | 
S/E 25 Grundplatte
(Transceiver Mounting)
 E 25 Grundplatte
(Receiver Mounting)
 B.V. Verstärker(On-board
Communications Amplifier)
 S/E 35 Grundplatte
(Transceiver Mounting)
 Verteiler NF (Audio
Junction Box) | 
Female, 23 pins, 1 bigger centrally, two rings of 8 and
14,  round 3 notch bayonet, 5 internal notches, ext. diam. 25.5 mm. | 
 | 
| 52 | 
Signals and controls. Daisy-chains multiple sets - up
to three - through Grundplatte (Transceiver Mounting) (51-52)  | 
S/E 25 Grundplatte
(Transceiver Mounting)
 E 25 Grundplatte
(Receiver Mounting)
 S/E 35 Grundplatte
(Transceiver Mounting) | 
Female, 23 pins, 1 bigger centrally, two rings of 8 and
14,  round 3 notch bayonet, 5 internal notches, ext. diam. 25.5 mm. | 
 | 
| 70 | 
Type audio accessories. Unknown where this officially
hooks up to - presumably either headset, handset or speaker.. | 
Verteiler NF (Audio
Junction Box) | 
 | 
  | 
| 71 | 
Type audio accessories. Used together with 72 to hook
up Ortsbesprechgerät (Local Control Box) | 
B.V. Verstärker(On-board
Communications Amplifier) | 
 | 
 | 
| 72 | 
Type audio accesories. Used together with 71 to hook
up Ortsbesprechgerät (Local Control Box) | 
B.V. Verstärker(On-board
Communications Amplifier) | 
 | 
 | 
| 73 | 
Audio - emergency use. No volume control | 
Sender-Empfänger
25 (Transceiver) | 
 | 
 |