12
CONNECTIONS
AHnet:
RJ45 CAT5 connector for addressable RS422 control. There is
a loop through connector to use as signal RS422 output. Up to 30
devices can be connected on the same RS422 bus.
AHnet address:
Shows the AHnet Address configured on this unit
Term ON:
Brighting when the RS422 bus termination is active. Activate
only the RS422 bus termination on the last unit of the bus
RX:
Illuminates when the unit receives a RS422 AHNet command
OSD – OK +:
- Changing AHnet Address. Press OK button. Change the AHnet number
address using + and – keys, and press OK to save the new address
- RS422 bus termination. Press + key to activate the RS422 termination.
Press – key to deactivate the RS422 termination
GPI/GPO external contact close connector:
1. GND
2. Command microphone UP connecting to GND. Connecting to
GND more than 2 seconds, activates the AHlink signal (5 beeps sounds
when the AHlin signal is activated)
3. Command microphone DOWN connecting to GND
- Use a pulse signal to RISE and LOWER the microphone
4. Red LED ring brights connecting to GND (only in conference mode)
5. Green LED ring brights connecting to GND (only in conference
mode)
6. GND
7,8. GPO1. Contact close of the central button located on cover plate
9,10. GPO2. Contact close of the talk button located on THE cover
plate
Summary of Contents for AHDTL
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