DN1769-1809 31Kantech Telephone Entry System Installation Manual7 - Heartbeat PatternsThe KTES status can be obtained from the HEARTBEAT blue LED patterns. It is located near the ribbon cableconnected to the door PCB, see Figure 8: PCB view of main board. This information is particularly useful whenconnecting the KTES to the EntraPass system. The following table lists all conditions along with a briefdescription. Refer to Table 4 on page 30, if you must reset or change the communication mode with the KTES.Table 6: Heartbeat PatternsBooting Up SteadyFactory Default Continuous LONG pulsesForced Default Static 3 Long PulsesModem Initialization Single 2.5 Sec. BurstDialup Communicationwith EntraPass 2 Short PulsesCorporate GatewayCommunication withEntraPass3 Short PulsesHard Reset 4 Short PulsesFail Soft Continuous Short PulsesFirmware UpdateQuick Pulses5 pulses per sec.@ 50% duty cycleRebootingVery Quick Pulses10 pulses per sec.@ 50% duty cycle