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DN1726-0811
14
VITAL LED Heartbeat Patterns
Communication status and other vital controller parameters can be obtained from VITAL LED heartbeat patterns. It is
located near the RS-232 port (COM3), see Figure 1. This information is particularly useful when connecting the
controller to the rest of the EntraPass system. The following table lists all conditions along with a brief description. Refer
to Table 3, if you must reset or change the communication mode of the KT-400 Ethernet Four-Door Controller.
Table 1: VITAL LED Heartbeat Patterns
Booting Up Steady
Factory Default DHCP Continuous LONG Pulses
Unable to Resolve DNS 2 LONG Pulses
Forced Default Static 3 LONG Pulses
DHCP Server Failed 4 LONG Pulses
Receive Broadcast Single 2.5 Sec. Burst
Card Read or Swipe
Single 0.5 sec burst, resume
previous flash
Hard Reset 4 SHORT Pulses
Corporate Gateway 3 SHORT Pulses
Global Gateway 1 SHORT Pulse
Fail Soft Continuous SHORT Pulses
Firmware Update 5 pulses / sec @ 50% duty cycle
Rebooting 10 pulses / sec @ 50% duty cycle