P:\INSTALLATION INST\Access Control\INST-936.vsd 0106 Page 11
OPERATION NOTES
Pressing the PROGRAM button on the Control Module sets a new Encode Code (EC)
between the Control Module and the Keypad and puts the Keypad into Programming Mode. If
no further programming is required, press * * to exit.
If the Control Module receives more than three (3) invalid EC’s in a row, the unit will go into
LockUp Mode. Once in LockUp Mode, the unit is essentially shut down and can only be
restored to normal operation by pressing the PROGRAM button.
Upon communication loss or LockUp, all relays are released and the Main Door latching is
cleared if set. The Remote Bypass will not work and the Keypad will be forced to the non-24
hour mode if enabled. If communication is lost for more than 2 seconds, the unit goes into
LockUp Mode and can only be restored to Normal Operation by pressing the PROGRAM
button.
If communication is lost with the Control Module or the Control Module is in LockUp Mode,
the Keypad will indicate the problem by flashing the Red LED very fast.
Since the Encode Code (EC) is only sent at the beginning of a Latch Open sequence, this is
the only time the unit knows if the EC’s match. Upon a power up, both units will communicate
with each other and the second and third relays, remote bypass and clock input will work
normally. Upon the first attempt to send an Control Module packet with a non-matching EC,
the device will be put into the LockUp mode, and from that point, until a new EC is
programmed, the unit will essentially be shut down.
Pressing the PROGRAM button while the unit has lost communication can cause the EC to
be erased and will require an EC setup upon re-establishing communication. For this reason,
it is recommended that the Keypad and the Control Module be powered by the same power
supply so they are both powered up and down at the same time.
Since the output is on to indicate a Non-Alarm status when using Output B relay as an Alarm,
a loss of communication or invalid EC will always create an alarm indication.
