How to interpret the 'Check Device' display on a D1255 or D1260 keypad.
Why does the keypad display "Check Device"?
How to locate which point generated the 'Check Device' display and modify programming to prevent the display.
How to correct the D8112/5505 not sending a Reboot report.
The 8112/5505 panel is communicating alarm and trouble signals but after resetting the panel it does not report the reboot.
Does Max Number of B208 Limit the number of B308's that can be used?
Does Max Number of B308s Limit the number of B208 's that can be used?
The maximum number of B208 modules and B308 modules that are available to the panel type can be connected at one time.
The only limit would be available power and SDI2 cable distance specifications which are detailed in the module documentation as well as the panel Installation and System Reference Guide (ISRG).
The B-Series panel onboard relay can be configured for either:
Standard Form-C relay
Aux Power configuration, Right two pins covered, the C terminal has 12Vdc available and upon activation will switch to the NO terminal.
Relay A turned off, NO to Common reads 0Vdc. Relay A turned on, NO to Common reads +12Vdc.
Aux Common configuration, Left two pins covered, the C terminal is Common. Upon activation Common is switched to the NO terminal.
Relay A turned off, NO to Aux= 0Vdc Relay A turned on, NO to Aux= 12Vdc
Dry Contact Configuration No jumper used, NO and C and NC works as a standard dry contact.
Relay A turned off, NO to C= Open, NC to C= Short Relay A turned on, NO to C= Short, NC to C= Open