How to determine which antenna to use with the B444 or B440 cellular cards.
What is the difference between the B440 antenna and the one used by the B444?
Can the antenna from the B440 be used on the B444?
How to troubleshoot Comm Fail when intrusion alarm panels communicate over phone lines.
What would cause a control panel to go into Comm Trouble or Comm Fail?
How to determine which wireless interface to use with the EN1224-ON keyfob.
How to determine which control panels the EN1224-ON keyfob can be used with.
Is the EN1224-ON compatible with D7212 panel types (G, GV2, GV3 or GV4)?
How to prepare for the D6600 upgrade from version 1 to version 2 firmware.
What to be aware of when upgrading the D6600 receiver from version 1 toversion 2 firmware.
D6600, D6200, D6640, D6641
How to work with duress passcodes and avoid ‘Passcode in Use’ errors.
Why does ‘Passcode in Use’ display when adding a new code and how to prevent the message from displaying.