BSP Addressable System Calculator
Design your BSP addressable sensor system, whether for new installs or legacy takeovers. Calculate the number of QX51 sensor adapters required and ensure your design meets power and distance limits.
Daisy-chain up to 100 QX51 sensor adapters, each of which supports up to 2 sensors
Alarm Panel
QX61
BSP RS-485 Adapter
QX51
BSP Sensor Adapter
QX51
BSP Sensor Adapter
Calculate your installation needs
Run this calculator for each chain of QX51s you plan to deploy
Sensor and adapter count
QX51s have 4 possible configurations — enter how many QX51s you need in each configuration to support the desired sensor count.
1 unpowered sensor per QX51
eg., 1 door contact
2 unpowered sensors per QX51
eg., 2 door contacts
1 powered sensor per QX51
eg., 1 motion sensor
1 unpowered + 1 powered sensor per QX51
eg., 1 door contact and 1 motion sensor
Total unpowered sensors: 0
Max 200 unpowered sensors
Total powered sensors: 0
Max 50 powered sensors
Wire gauge
Installation summary
Hardware needed
0 QX51 sensor adapters
To connect 0 unpowered and 0 powered sensors
Max distance to farthest QX51
1200 m
on 18 AWG wire
Estimated end-of-line voltage
35.8 V
Min voltage: 18 V
Estimated current
3 mA
Max current: 380 mA
Recommendation: Normal operation.