CONTEMPORARY CONTROLS BASrouterSX High Performance BACnet Router User Manual
BACnet Multi-Network Routing with SSL and Wireshark® Capture with Optional GSA Compliance
The BASrouterSX is a high-performance BACnet router that provides stand-alone routing between BACnet networks such as BACnet/IP, BACnet Ethernet (ISO 8802-3), and BACnet MS/TP. Besides a highspeed processor, it has advanced features such as MS/TP Backbone, Backward Routing, Allowlist option for enhanced security, MS/TP slave proxy support (allowing auto-discovery of MS/TP slaves) and MS/TP frame capture and storage for use with Wireshark®. As a BACnet/IP Broadcast Management Device (BBMD), up to 50 BDT and 147 Foreign Device Registration (FDR) entries can be supported. The BASrouterSX has two physical communication ports—a 10/100 Mbps BACnet/IP Ethernet port and an optically-isolated EIA-485 port for MS/TP. Router configuration is accomplished via web pages using HTTPS (HTTP over SSL). The BASrouterSX-GSA is a GSA-compliant model which has been tested and approved for use in U.S. government buildings.
Versatile Routing Between…
- BACnet/IP and BACnet MS/TP
- BACnet Ethernet and BACnet MS/TP
- BACnet/IP and BACnet Ethernet
- BACnet/IP and BACnet Ethernet and BACnet MS/TP
- Two BACnet/IP networks (between two UDP ports)
IP Network Support
- Web server for commissioning and troubleshooting
- MS/TP capture using Wireshark
- 50 BBMD entries, 147 FDR entries
Flexible Communications
- 10/100 Mbps Ethernet with auto-negotiation and Auto-MDIX
- MS/TP slave auto-discovery and proxy support
- MS/TP Backbone
- Backward Routing
- Allowlist
- Optically-isolated MS/TP port
- MS/TP baud rates from 9.6–115.2 kbps
Convenient Installation
- 24 VAC/VDC (± 10%), 47–63 Hz input voltage
- DIN rail mount
BACnet/IP Network Security
Although the BACnet MS/TP network is secure by nature, the BACnet/IP network could contain security weaknesses. The BASrouterSX can optimize BACnet/IP network security by utilizing an Allowlist. By configuring the Allowlist, only specific BACnet/IP devices can communicate to the BACnet internetwork. The BASrouterSX-GSA is a GSA-compliant model which has been tested and approved for use in U.S. government buildings.
MS/TP Backbone
MS/TP backbone allows BACnet communication to occur in some special cases, for example when two routers are connected via MS/TP. The BACnet/IP devices on either side of the routers in this case have no idea of the MS/TP link in between and this results in the messages being dropped because of smaller size of the Max APDU on the MS/TP side. Enabling this feature allows the BACnet/IP devices to work properly.
BACnet MS/TP capture using Wireshark
MS/TP Traffic capture is continuously stored to a buffer in the BASrouterSX. By clicking the Generate button, the buffer is written into a Wireshark compatible file. The file can then be viewed on a PC with the free Wireshark tool.
Broadcast I-Am
In normal operation, the router forwards broadcast I-Am messages received from the BACnet/IP side to the BACnet/MSTP side. For MS/TP devices with small memory, this may cause an issue if they receive a flood of I-Am messages. When this feature is enabled, the router does not forward the broadcast I-Am messages to the MS/TP side.
Ordering Information
| Model | RoHS | Description |
| BASRTSX-B |  |
BACnet/IP to MS/TP to Ethernet Router with SSL |
| BASRTSX-B-GSA | |
BACnet/IP to MS/TP to Ethernet Router for GSA |
Worldwide Locations
United States
Contemporary Control Systems, Inc.
2431 Curtiss Street
Downers Grove, IL 60515 USA
+1 630 963 7070
[email protected]
Germany
Contemporary Controls GmbH Fuggerstraße 1 B
04158 Leipzig
Germany
+49 341 520359 0
[email protected]
United Kingdom
Contemporary Controls Ltd 14 Bow Court
Fletchworth Gate
Coventry CV5 6SP
United Kingdom
+44 (0)24 7641 3786
[email protected]
China
Contemporary Controls (Suzhou) Co. Ltd
19F, Metropolitan Towers,
No.199 Shishan Road,
Suzhou New District,
215009 China
+86 512 68095866
[email protected]