Why doesn't my EF Johnson 5300SLES radio power up when using the cable documented in the manual?
EF Johnson Remote Cable Assembly P/N-597-2002-245 is required for RS series radios (connected to J6 and J8 on the Logic PCB).
EF Johnson Remote Cable Assembly P/N-597-5357-746 is required for EFJ 53ES series radios, including all EFJ 5300SL and EFJ 5300SL ES radios
Thess can be purchased from EF Johnson.
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