Field phone and switchboard inter-operability

[maple_leaf_eh]

Originally Posted by Chris Suslowicz

I think the remote handset is entirely passive, and powered from the J1 or J2 box in Wireless Harness 'B' (soft-skinned vehicles) or the equivalent in AFVs. (I must sort my library into some kind of order; I can't find the appropriate manuals at the moment.) The buzzer or other tone generator is in the J1 control box (from memory).

WD1 is identical to D10 cable. (D9 never made it into service, I can't remember exactly why, but suspect the insulation wasn't robust enough, and why D10 had a protective outer layer of Nylon over the PVC. The earlier telephone cables (D1 to D8) were a cloth-covered rubber insulated type, with wax (Ozokerite?) impregnated jacket. I've got the details somewhere.)

Chris.

I know a fast way to dull any knife is to try to cut WD1 wire! And yes, I think it was the J1 box on the C42. It's been a long time since I had to remember those designations!