SVR250 Programming cable

[hobbes]

Does anyone happen to know the pinout of the FY-4 programming cable for the Pyramid SVR-250? It looks like an RJ-11 connector inside the unit, but I haven't been able to find any information on the cable itself.

[jackhackett]

Is the service manual any help? They have it on their site, under Product Support.

[hobbes]

The schematic in their service manual is for Rev L of the controller board, my unit is apparently Rev D. The "L" version shows a 2.5mm programming connector on the board, which doesn't exist on mine; it has an RJ-11 instead.

[jackhackett]

http://www.pyramidcomm.com/service-manuals/

SVR-250 manual, first schematic lower left corner shows RJ11 programming jack. Were you maybe looking at the SVR-200? Those had a 2.5mm jack.