JETWAY NF792R Series User Manual page 21

(3) LAN1_LED / LAN2_LED (2-pin): LAN LED Activity Function Select
LAN2_LED
LAN1_LED
(4) COM3 / COM4 (9-pin): RS232 Serial Port Header
COM3
6
COM4
Pin1
(5) FP_AUDIO (9-pin): Line-Out, MIC-In Header
This header connects to Front Panel Line-out, MIC-In connector with cable.
FP_AUDIO
16