Adtec digital EN-20 (version 2.03.06) Manual - Manual (Page 31)

Back Panel Diagram
The back panel contains the ports and connection points for the device.
Processor Connectors
Connection Function
AC Power AC Power- standard 3-pin plug (70-240 VAC 50-60 Hz), 5Vdc Power (x2) -
External Power Only
GigE GigeE Interface- MPTS Output over RTP/UDP
COM2 API Serial Communication Interface
COM1 Serial Port used for Troubleshooting
Ethernet 10/100 base T-Ethernet interface
Video/Audio Inputs