Connectors
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The SEM 25/35 system has a large number of connectors, all numbered on the actual apparatus. Also, all cables should be marked with the same numbers, so setting up should be no problem if one is able to find the proper cables. In order to check on the cables needed, see Cables.
 
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)
 

Last updated: 17-06-2005 10:24 +0200
Copyright © 2001, 2002, 2003, 2004, 2005 A.J.M.O. Witkop. All Rights Reserved.