Adtec digital EN-91 / EN-91P (version 1.02.29) Manual - Manual (Page 34)

Item Function Options
Firmware Displays the currently running
firmware version of your unit. Read-Only
Back Panel
Connector Description
Power 1 & 2 Redundant AC Power, Standard 3 pin computer power plug
(Auto range 70-240 VAC Input)
GigE MPEG2 or RTP multicast transport egress port (SMPTE 2022)
COM2 API Serial Communication Interface **
COM1 Serial Port Used for Troubleshooting (Terminal)
Ethernet 10/100 base T ethernet interface (Monitoring/Management)
DVC Parport 9-pin parallel I/O interface for control systems **