DM 4xxx to GM back to back bridge pinout

DM 4xxx to GM back to back bridge pinout

Note: this design, due to high amplitude signal from DM to GM and consequent noise on analog side, is not recommended. Substitute design would be using the DM (programmed as analog) to DM (digital) or using a RICK (repeater interface communication kit)

DM4xxx-----------------------------GM360

PIN17 (EXT PTT MIC)-----------PIN8 CSQ

PIN19 (CSQ DETECT) ---------PIN3 PTT

PIN14 (RX AUDIO)--------------PIN5 (TX AUDIO)

PIN12 (AUDIO GROUND)-----PIN7 (AUDIO GROUND)

PIN11 (TX AUDIO)---------------PIN11 (RX AUDIO)

please check the GM radio pinout setting codplug in the attachment.