NXU-2A Operations Manual
iv Interoperability Now!
3.3.20 VMR ................................................................................................................................................. 3-9
3.3.21 VOX and VMR Sensitivity Adjustments ........................................................................................... 3-9
3.3.22 Restoring Factory Defaults ............................................................................................................. 3-9
3.4 NETWORK MANAGEMENT: SNMP SUPPORT ....................................................................................... 3-10
3.5 COMMUNICATIONS MODE ................................................................................................................... 3-11
3.5.1 Store Setup Changes with SAVE Command .................................................................................. 3-12
3.5.2 NXU-2A Configuration Using the NXU-2A Setup Utility .............................................................. 3-12
3.6 NETWORK CONFIGURATION ................................................................................................................ 3-15
3.7 I/O DESCRIPTIONS.......................................................................................................................... 3-15
3.7.1 Audio Input .................................................................................................................................... 3-16
3.7.2 Audio Input Test Point ................................................................................................................... 3-16
3.7.3 Audio Output ................................................................................................................................. 3-16
3.7.4 COR Input ...................................................................................................................................... 3-16
3.7.5 AUX Inputs .................................................................................................................................... 3-16
3.7.6 PTT Output .................................................................................................................................... 3-16
3.7.7 AUX Outputs .................................................................................................................................. 3-16
4 OPERATION ................................................................................................................................................. 4-1
4.1 GENERAL .............................................................................................................................................. 4-1
4.2 FRONT PANEL INDICATORS ................................................................................................................... 4-1
4.2.1 Power LED ...................................................................................................................................... 4-1
4.2.2 Link Active LED .............................................................................................................................. 4-1
4.2.3 Channel Active LED ........................................................................................................................ 4-1
4.2.4 Audio Input LED.............................................................................................................................. 4-1
4.3 REAR PANEL CONNECTORS, ADJUSTMENTS AND LEVEL POTENTIOMETERS ......................................... 4-1
4.4 NXU-2A OPERATION ........................................................................................................................... 4-1
4.4.1 Operation at Power-Up ................................................................................................................... 4-2
4.4.2 Input/Output Level Adjustments ...................................................................................................... 4-2
4.4.3 COR Input Description .................................................................................................................... 4-2
4.4.4 RS-232 Serial Data .......................................................................................................................... 4-2
4.4.5 Auxiliary I/O .................................................................................................................................... 4-3
4.5 CONTROLLING CONNECTIONS ............................................................................................................... 4-3
4.5.1 Serial or Telnet Control ................................................................................................................... 4-3
4.5.2 Web Browser Control ...................................................................................................................... 4-4
4.6 SECURITY .............................................................................................................................................. 4-5
4.6.1 Password Setting ............................................................................................................................. 4-5
4.6.2 Web Access with Password Protection ............................................................................................ 4-6
5 NXU-2A TROUBLESHOOTING ................................................................................................................ 5-1
6 NXU-2A FAQ (FREQUENTLY ASKED QUESTIONS)........................................................................... 6-1
6.1 GENERAL .............................................................................................................................................. 6-1
7 THEORY OF OPERATION ........................................................................................................................ 7-1
8 INDEX ............................................................................................................................................................ 8-1