Carrier 19XRV specifications Table E LED Status Indicators, Run, RUN LED Error LED Status

APPENDIX B — OPTIONAL BACNET COMMUNICATIONS WIRING (cont)

COMMUNICATION LEDS — The LEDs indicate if the controller is communicating with the devices on the network. See Tables E and F. The LEDs should reflect communication traffic based on the baud rate set. The higher the baud rate the more solid the LEDs become. See Fig. B for location of LEDs on UPC Open module.

REPLACING THE UPC OPEN BATTERY — The UPC Open controller's 10-year lithium CR2032 battery provides a minimum of 10,000 hours of data retention during power outages.

IMPORTANT: Power must be ON to the UPC Open when replacing the battery, or the date, time, and trend data will be lost.

Remove the battery from the controller, making note of the battery's polarity. Insert the new battery, matching the battery's polarity with the polarity indicated on the UPC Open controller.

NETWORK POINTS LIST — The points list for the control- ler is shown in Table G.

	Table E — LED Status Indicators
LED	STATUS
Power	Lights when power is being supplied to the controller. The UPC Open controller is protected by internal solid-state polyswitches on
	the incoming power and network connections. These polyswitches are not replaceable and will reset themselves if the condition
	that caused the fault returns to normal.
Rx	Lights when the controller receives data from the network segment; there is an Rx LED for Ports 1 and 2.
Tx	Lights when the controller transmits data to the network segment; there is a Tx LED for Ports 1 and 2.
Run	Lights based on controller status. See Table F.
Error	Lights based on controller status. See Table F.

Table F — Run and Error LEDs Controller and Network Status Indication

RUN LED		ERROR LED	STATUS
2 flashes per second	Off		Normal
2 flashes per second	2 flashes,	alternating with Run LED	Five minute auto-restart delay after system error
2 flashes per second	3 flashes,	then off	Controller has just been formatted
2 flashes per second	1 flash per second		Controller is alone on the network
2 flashes per second	On		Exec halted after frequent system errors or control programs halted
5 flashes per second	On		Exec start-up aborted, Boot is running
5 flashes per second	Off		Firmware transfer in progress, Boot is running
7 flashes per second	7 flashes per second, alternating with Run LED		Ten second recovery period after brownout
14 flashes per second	14 flashes per second, alternating with Run LED		Brownout

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