Linx Technologies LICAL-ENC-HS001 - Manual (Page 10)

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Encoder MODE_IND Indication Table
The MODE_IND line is the primary means of indicating the state of the
encoder to the user. The table below provides definitions for the MODE_
IND signals.
HS Series Encoder MODE_IND Definitions
MODE_IND Signal Definition
Get Key Mode ON for 1 second after a successful key transfer.
Create PIN Mode
Flashes* for 15 seconds while waiting for user to enter a PIN.
It stops flashing when the fourth number is entered or when it
times out.
Enter PIN Mode ON when each PIN is entered.
*Flash = ON for 200ms and OFF for 200ms
Figure 10: HS Series Encoder MODE_IND Definitions
Encoder Create Pin Mode
For higher security applications, the HS Series encoder has the option to
set a Personal Identification Number (PIN) to control access to the encoder.
This PIN is a four-digit combination of the eight data lines that must be
entered before the encoder will transmit any commands to the decoder.
Create PIN Mode is entered by pressing the CREATE button on the
encoder. The MODE_IND line begins flashing to indicate that the encoder
is ready for the PIN to be entered. The user has 15 seconds to press any
4-button combination to set the PIN. After the fourth button press, the
MODE_IND line goes low. If 4 buttons are not pressed or the CREATE line
goes high within the 15 second window, no PIN is set. Once created, the
PIN can be erased only by learning a new key from the decoder.
Once the PIN has been set, the user must enter it correctly before the
encoder will transmit any commands. When entered, the encoder is active
for a period of time set by the SEL_TIMER line. If this line is connected to
ground, the PIN needs to be entered after 15 minutes of inactivity. If this
line is high, the PIN needs to be entered after 30 seconds of inactivity. If no
PIN is set, then the encoder activates as soon as the SEND line goes high.