andym Posted February 28, 2015 Share Posted February 28, 2015 In the absence of the elusive pukka EMERs, I'm producing an "imagineered" Clansman installation for Maud the Stalwart and need to make up the appropriate cables. Does anyone know what cores do what in the assorted seven pin connectors between 352, IBHA, IB3, Initiate Box etc.? Do I actually need all seven cores, as I've only got six core cable to hand? Andy Quote Link to comment Share on other sites More sharing options...
g0ozs Posted February 28, 2015 Share Posted February 28, 2015 Andy The headset cable does use all 7 see: http://www.g0ozs.org/clansman/audio.shtml But you could probably get away with sharing a wire for the left and right headphone. I'm not sure the Stalwart had a Harness (IB3/CB3 or IB3/CB2) fit which only makes sense in a single radio setup if there is an intercom requirement and I think the one photo I have seen (cant remember where unfortunately) showed a 353 in place of the original Larkspur B47. So it was probably a simple setup with the 353 connected to the ARFAT connected to the TUUAM much as in a minimal FFR landrover setup. If you plan to use a 352 clip-in then the 7-pin cable from the 2nd audio socket goes to the initiate box which in turn goes to the TUUAM. Looking at the EMER Tels L212 (VHF Antennas Technical Handbook - Technical Description) I see the pinouts are 353 to ARFAT (12 pin): Pins not mentioned are not used ! Pin S - +24V Pin H - Tuner Keying Pin P - 0V Pin L - TX Inhibit Pin O - Silent Tune ARFAT or Initiate to TUUAM (7 pin): Pins not mentioned are not used ! Pin B - Silent Tune Pin C - +24V Pin E - Earth Pin F - Key 351/2 to Initiate All 7 pins are connected through from 1SK2 to 1PL1 so a headset can be connected to 1SK2. Pins D and G of the audio sockets are connected internally to the initiate box The ones used internally to the Initiate Box are Pin C (+24V from Radio) Pin E (ground) Pin F (PTT) The output pin B going to TUUAM is grounded to Pin E for silent tuning. Note also that there is 20V DC signalling from the TUUAM to the radio on the coax inner Hope this helps Iain Quote Link to comment Share on other sites More sharing options...
andym Posted February 28, 2015 Author Share Posted February 28, 2015 Brilliant - thanks Iain. Maud had a harness intercom when I got her so I'm updating to ANR and adding a 352. Andy Quote Link to comment Share on other sites More sharing options...
Starfire Posted March 1, 2015 Share Posted March 1, 2015 Hi Andy, The harness cables should be 12 core. I've got the pinout if you need it. Cheers, Terry Quote Link to comment Share on other sites More sharing options...
andym Posted March 2, 2015 Author Share Posted March 2, 2015 Hi Andy, The harness cables should be 12 core. I've got the pinout if you need it. Cheers, Terry Thanks Terry, the 12 core information is easier to find and understand. The problem with the 7 core is that the connectors are used for a number of different things in different places. Andy Quote Link to comment Share on other sites More sharing options...
Starfire Posted March 2, 2015 Share Posted March 2, 2015 In that case, you want these two manuals from VMARS: [TABLE=class: cms_table, width: 777, align: left] [TR] [TD=width: 55]4091[/TD] [TD=width: 521]4091_AESP_5995-C-100-521_Cable_Assemblies_Repair.pdf[/TD] [TD=width: 144]Cable[/TD] [TD=width: 150]Clansman.Cable.Assemblies.Manufacture.and Repair.Techniques[/TD] [/TR] [TR] [TD=width: 55]4092[/TD] [TD=width: 521]4092_AESP_5995-C-110-521_Cable_Assemblies_Repair_Detail.pdf[/TD] [TD=width: 144]Cable[/TD] [TD=width: 150]Clansman.Cable.Assemblies.Manufacturing.and. Repair.Detail[/TD] [/TR] [/TABLE] Quote Link to comment Share on other sites More sharing options...
andym Posted March 2, 2015 Author Share Posted March 2, 2015 Thanks, will do! Andy Quote Link to comment Share on other sites More sharing options...
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