The Serial Connector

Serial Connectors connect to the Building Automation Network via a Cat 5/6 network connection and support up to 3 RS-485 communication channels. As with Computrols LX controllers, the Serial Connector supports per-channel licensing for ultimate flexibility.

Compact & Flexible

The Serial Connector comes in a 4″x 4” square box allowing for easy mounting on a wall or inside or outside of an existing enclosure. This compact device is ideal for connecting legacy devices using proprietary protocols to a more modern BAS.

Computrols Serial Connector

RS-485 Serial Connection

The Serial Connector comes in a 4″x4” square. The 3 Serial Connector’s RS-485 ports serve as a general-purpose interface to all the devices in your facility today: Variable Frequency Drives, VAV controllers, and chiller controls. Whether they talk BACnet, Modbus, N2, FLN, BLN, or any one of the dozens of protocols Computrols supports. Connect them with the Serial Connector, and control them with CBAS.

3rd Party Protocols

While the feature set of the Serial Connector will be expanding, upon initial release the product supports the following RS-485 communication protocols:

BACnet (MS/TP)


The Serial Connector also supports BACnet IP and can route supported RS-485 protocols over BACnet IP

Computrols Serial Connector mounting example options

Mobile App Configuration

A single button press on the Serial Connector reveals all of its options right on your smartphone. One-touch configuration pulls up Serial Connector options, providing the easiest networking setup to date.

BTL Certification

The Serial Connector is currently undergoing BTL testing.