Wiring & electrical connections
Wire the BRMUX to the BR motherboards over the RS232 ports (up to 6) and the JST CANbus connectors (up to 8, for external calls and landings). Supply the board with 12–24 VDC/AC.
- Up to 5 pluggable motherboards form the group
- 8 positive/negative inputs and 8 GND outputs
- Refer to the summary electrical diagram before powering
Programming & multiplex manoeuvre
Program the board from the on-board keypad and display, navigating the tree menu. Set the multiplex manoeuvre and assign each floor to its respective slave board.
- Supports generic configuration and staggered (offset) floors
- Enter Programming mode to change parameter values
- Assign floors to slaves for duplex/triplex/quadruplex groups
Fault alerts
The BRMUX signals failures through the display and the 2 diagnostic LEDs, and stores up to 100 diagnostic errors. Consult the failures table in the manual for each code's meaning and remedy.
Faults & diagnostics
Err 80BRMUX watch-dog errorCritical
BRMUX watch-dog error.
Cause: The BRMUX board was blocked and was restarted.
Err 83EEPROM read error, error sectionCritical
Error of the command of EEPROM's reading regarding the error section.
Cause: The EEPROM's section reserved for errors results to be damaged in reading.
Err 84EEPROM write error, error sectionCritical
Error of the command of EEPROM's writing regarding the error section.
Cause: The EEPROM's section reserved for errors results to be damaged in writing.
Err 85EEPROM time-out errorWarning
Error time-out of EEPROM.
Cause: EEPROM's failure.
Err 86EEPROM read error, parameters sectionCritical
Error of the command of EEPROM's reading regarding the parameters/data section.
Cause: The section of EEPROM reserved for parameters/data results to be damaged in reading.
Err 87EEPROM write error, parameters sectionCritical
Error of the command of EEPROM's writing regarding the parameters/data section.
Cause: The section of EEPROM reserved for parameters/data results to be damaged in writing.
Err 88EEPROM reading errorWarning
Error of EEPROM's reading.
Cause: EEPROM's data reading error.
Remedy: Try to switch the card off and on.
Err 89EEPROM writing errorWarning
Error of EEPROM's writing.
Cause: Error of storage of data in EEPROM.
Remedy: Try to switch the card off and on.
Err 95CAN CHM2S communication errorCritical
Error of communication with module CAN CHM2S.
Cause: External Calls Serial Adapter damaged, or inverted CAN connections / programming error of CHM2S.
Remedy: Check the CHM2S adapter and the CAN connections.
Err 96Call stuck errorWarning
Error call stuck.
Cause: A call button results permanently pressed.
Remedy: Verify the connections of the call buttons.
Err 150Master-Slave communication errorCritical
Error of communication Master and Slave.
Cause: The Master board does not read communication with Slave board n. X.
Remedy: Check the Master-Slave connections.
Err 151Master communication errorCritical
Error of communication Master.
Cause: The Slave board does not read communication with the Master board.
Remedy: Check the Master-Slave connections.