57501 R1 Transponder 261 Extension Harness April 02, 2024 18:56 Updated Drawing for extension cable to standard ACM transponder harness for transponders mounted in tail. 57501 R1 Transponder 261 Extension Harness.pdf 300 KB Download Related articles 57308 R1 Flarm AT-1 Harness 57500 R6 XPNDR & GPS & ADSB Advanced Control Module and Advanced Panel Install Manual 57100 R6 ACM to AF-5000+6000 Harness