BASrouterSX: BACnet Multi-Network Router with SSL and Wireshark Capture
Contemporary Controls
Product Overview
The BASrouterSX is a high-performance BACnet router providing stand-alone routing between BACnet networks such as BACnet/IP, BACnet Ethernet (ISO 8802-3), and BACnet MS/TP. It features a high-speed processor and advanced capabilities including MS/TP Backbone, Backward Routing, an Allowlist option for enhanced security, MS/TP slave proxy support for 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), it supports up to 50 BDT and 147 Foreign Device Registration (FDR) entries. 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 tested and approved for use in U.S. government buildings.
Device Description
The physical unit is a compact network router. It features a "CONTEMPORARY CONTROLS" logo and "BASrouterSX" branding. On the front panel, there are indicators for Ethernet (Tx, Rx, STAT, PWR, IP, LAN) and EIA-485 (Tx, Rx, TERM). It has a power input connector labeled "24 VDC +/- 10% 7W" and "24 VAC +/- 10% 15VA 47-63 Hz", with terminals for DC+ or AC HI, and COM for DC COM or AC LO. A reset button is also present. The device is designed for convenient installation, indicated by its DIN rail mount capability.
Versatile Routing Capabilities
- 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
While the BACnet MS/TP network is inherently secure, the BACnet/IP network can have security weaknesses. The BASrouterSX enhances BACnet/IP network security through its Allowlist feature. By configuring the Allowlist, only specific BACnet/IP devices are permitted to communicate within the BACnet internetwork. The BASrouterSX-GSA model, being GSA-compliant, has undergone testing and approval for use in U.S. government facilities.
MS/TP Backbone
The MS/TP backbone feature facilitates BACnet communication in specific scenarios, such as when two routers are linked via MS/TP. In such cases, BACnet/IP devices on either side of the routers may not recognize the MS/TP link between them, potentially leading to dropped messages due to the smaller Max APDU size on the MS/TP side. Enabling this feature ensures proper operation of BACnet/IP devices.
BACnet MS/TP Capture using Wireshark
MS/TP traffic is continuously stored in a buffer within the BASrouterSX. Clicking the "Generate" button writes this buffer to a Wireshark-compatible file, which can then be viewed on a PC using the free Wireshark tool. The web interface also provides options to generate and view this traffic.
Web Interface Configuration Example
The web interface allows configuration of key features. Users can enable or disable the "Allowlist Status" and specify "BACnet Allowlist IP Address" to control network access. The "MS/TP Backbone" can be enabled or disabled. Additionally, options exist to "Block Broadcast I-Am to MS/TP Network" and "Block Full Range Who-ls Broadcast to MS/TP Network" to manage network traffic and prevent issues with devices having limited memory. Configuration changes are applied using "Apply" and "Cancel" buttons.
Broadcast I-Am
Normally, the router forwards broadcast I-Am messages from the BACnet/IP side to the BACnet/MS/TP side. However, for MS/TP devices with limited memory, receiving a high volume of I-Am messages can cause issues. When this feature is enabled, the router prevents forwarding these 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 | Germany | United Kingdom | China |
|---|---|---|---|
| Contemporary Control Systems, Inc. 2431 Curtiss Street Downers Grove, IL 60515 USA +1 630 963 7070 info@ccontrols.com |
Contemporary Controls GmbH Fuggerstraße 1 B 04158 Leipzig Germany +49 341 520359 0 ccg.info@ccontrols.com |
Contemporary Controls Ltd 14 Bow Court Fletchworth Gate Coventry CV5 6SP United Kingdom +44 (0)24 7641 3786 ccl.info@ccontrols.com |
Contemporary Controls (Suzhou) Co. Ltd 19F, Metropolitan Towers, No.199 Shishan Road, Suzhou New District, 215009 China +86 512 68095866 info@ccontrols.com.cn |
Website: https://www.ccontrols.com
Contemporary Controls
