Andover Controls Infinity Manual page 161

TOC
System Operation
COMM Port LEDs - Each of the four COMM Ports has three
indicators to show the status of the port. These indicators are useful
when troubleshooting a communications problem. The COMM Port
LEDs are as follows:
• TD - Turns on when the port is transmitting data.
• RD - Turns on when the port is receiving data.
• ONLINE - Turns on when the RS-232 RTS line is true, or when the
RS-485 driver is enabled.
The SCX920S
The SCX920S has the following status indicators:
CPU - Flashes every 0.2 seconds to show that the CPU is operating
properly.
TD - Turns on when the Infinet port is transmitting data.
RD - Turns on when the Infinet port is receiving data.
OVERRIDE - Turns on when one of the HOA switches is not in the
AUTO position.
+24V - Turns on when there is 24V DC at the expansion port.
Output Status - Each of the eight outputs has a status LED that turns on
when the output is on.
The TCX840 Series
Each of the controllers in the TCX840 series has the following status
indicators:
CPU - Flashes every 0.2 seconds to show that the CPU is operating
properly.
The TCX850 and TCX860 Series
Each of the controllers in the TCX850 series and the TCX860 series has
the following status indicators:
CPU - Flashes every 0.2 seconds to show that the CPU is operating
properly.
Andover Controls Corporation 6-11
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