Elecraft CAT cables
The cables are used from PC- to Control-RRC and from Radio-RRC to Radio. Work with all Elecraft K2/K3 when using a PC to control the radio via the CAT interface. Schematics are available in the users manual.
E1c = DSUB -9p F to DSUB -9p M 2m
E2c = DSUB -9p M to DSUB -9p F 1m