Set Up BSP Adapters

BSP adapters add addressable wired sensor coverage to a compatible Verkada alarm panel using a single cable run. There are two adapters:

• QX61 BSP RS-485 Adapter - Converts an RS-485 port on the alarm panel into a BSP cable run. Each QX61 supports one BSP run and one RS-485 passthrough, so the port can still be used for another RS-485 device.

• QX51 BSP Sensor Adapter - An addressable sensor module that expands the panel's input capacity. Each QX51 supports up to two sensors, and multiple units daisy-chain off a QX61 or a BP42's onboard BSP port.

When taking over a non-Verkada addressable or polling loop system, disconnect all non-Verkada polling loop modules before connecting the loop to the Verkada alarm panel. Non-Verkada modules are not rated for the higher voltage supplied by the BP52 and may damage the cable.

---

Supported configurations and limits

Before installation, run the BSP calculator for each QX51 chain you plan to deploy. Use the results to determine how many adapters you need, and verify that your design stays within the voltage, current, and cable-length limits for your wire gauge.

QX51 modules per BSP run	Up to 100
Sensors per QX51	Up to 2
Powered sensors per QX51	1
Powered sensors per BSP run	Up to 50
BSP runs per QX61	1
RS-485 passthrough per QX61	1

Each QX51 supports the following sensor combinations:

• One unpowered sensor, such as a door contact.

• Two unpowered sensors.

• One unpowered sensor and one powered sensor, such as a door contact and a motion sensor.

• One powered sensor.

Two powered sensors on a single QX51 are not supported. Powered sensors draw 12V from the QX51's AUX terminal, which supports one device.

---

BSP adapter setup

1

Confirm your alarm panel is added to your New Alarms site and is online.

2

Wire the adapters.

1. Connect the QX61 to the panel's RS-485 port using a 4-conductor cable.

2. Connect the QX51s:

   • Daisy-chain the BSP cable from the QX61 through each QX51.

   • If you are using a BP42, daisy-chain the QX51s directly from its onboard BSP port.

Refer to the QX61 and QX51 install guides for wiring diagrams and terminal block details.

3

Add the adapters to Command.

Either add the QX61 and QX51 serial numbers to your Command organization and move them from unassigned devices into your Alarm site, or add them through bulk provisioning.

4

On the Devices page, select the alarm panel, then select the BSP run for the RS-485 port the QX61 and QX51 are wired to.

5

In the top right, click Identify to locate each sensor by triggering it rather than matching devices manually. Use Identify when commissioning new or existing runs.

1. Trigger each sensor one at a time. Open the door contact or walk in front of the motion sensor.

2. The triggered sensor appears in Command, where you can name and configure it.