Instruction manual

Maintenance and Test Procedures
Access Control Design Guide 41
LED52 (RS232 RX) – Flashes when the on-board RS232 port (TB15) is receiving data. Otherwise, the LED
is not illuminated.
LED53 (RS485 TX) – Illuminated when transmitting data to an external door or alarms controller.
LED54 (RS485 RX) – Illuminated when receiving data from an external door or alarms controller.
LED17/19 (COM D/E RX) – Illuminated when receiving data from the plug-in COM D/E port.
LED18/20 (COM D/E TX) – Illuminated when transmitting data to the plug-in COM D/E port.
LED21 (12V) – Illuminated when the 12Vdc supply is connected.
LED22 (DC COMMS) – Illuminated when an external door or alarms controller is connected.
LED23 (5V) – Illuminated when the on-board 5Vdc supply is operating.
LED24/26/28/30/32/34/36/38 (READER 1/2/3/4/5/6/7/8) – Illuminated when the reader is connected
properly.
LED25 (3V) – Illuminated when the on-board 3Vdc supply is operating.
LED27 (OK) – When the 8DBC is functioning correctly, this should flash once per second.
LED29/35/37 (COM C/COM D/COM E) – Indicates the Port Usage configuration setting for COM ports C,
D and E (as described in the 8DBC Installation Instructions). 1 flash = Normal Comms (indicates primary
port when two NIC4s fitted); 2 flashes = Bidirectional Comms; 3 flashes = Fall-Back Comms; 4 flashes =
Serial Device; 5 flashes = port off (another port has been set to the same setting); 6 flashes = Secondary
port when two NIC4s fitted.
LED 31 (COM A) – Flashes to indicate COM A port usage. 1 flash = port in use; 5 flashes = port not used
(RS232, NIC1 or NIC2 port set to Normal Comms port usage).
LED 33 (COM B) – Flashes to indicate COM B port usage. 2 flashes = port in use; 5 flashes = port not
used (RS232, NIC1 or NIC2 port set to Bidirectional Comms port usage).
LEDs on the 2DC
LED9/10 (RDR 1/2) – Illuminated when the reader is connected properly.
LED3/7 (Rx) – Illuminated when receiving data from a 20mA reader (off for Wiegand).
LED1/5 (Tx) – Illuminated when transmitting data to a 20mA reader (off for Wiegand).
LED4/8 (BY) – Illuminated when the bypass relay is energized.
LED2/6 (RL) – Illuminated when the release relay is energized.
LED11 (RxD) – Illuminated when receiving data from a database unit.
LED12 (TxD) – Illuminated when transmitting data to a database unit.
LED13 (DC COMMS) – Illuminated when the door controller comms to the database unit is active.
LED14 (OK) – When the controller is functioning correctly, this should flash at two-second intervals (one
second on and one second off).