Data-Linc Group's HSM240E-SD

HSM240E – SD

High-Speed 802.11b/g Modem in the 2.4GHz band

Meet the Swiss Army Knife of License-Free, Long-Range, High-Speed, Wireless Modems: 

  • Supports Ethernet, serial & digital I/O simultaneously
  • High throughput Class 1, Div2 802.11b/g OFDM
  • Designed for band-intensive applications: IoT, Big Data & Industry 4.0
  • High-speed with selectable RF speeds up to 54Mbps(108 Mbps using turbo mode)
  • Backward compatible with its previous version HSM800E
  • High power offers robust, exceptionally long-range solutions(up to 9 miles/14.5km)
  • Capable to operate in access point/ client configuration, function as network bridge/ router or serve as a serial server(RS-232/RS-485)

Contact or call 425-882-2206 for questions, information or to discuss your project. Ready to start your project? Fill up our Request Project Assistance Form, and our team will contact you to assist you in your project.

Product Description

Data-Linc Group's High-Speed Modem

Meet the Swiss Army Knives of Modems – License-Free, Long-Range, High-Speed, Wireless Modems with Ethernet, serial & Digital I/O

License-free, wireless, high-speed HSM240E-SD modem offers unique, user-friendly features to increase efficiency & security in the 2.4GHz band. The premium, top-of-the-line modem offers node-to-node deterministic mesh network repeatability allowing greater range and multiple channel spacing options for increased network scalability, reliability & the reduced threat of signal loss.

DATA-LINC GROUP’s HSM240E-SD, the Swiss Army knives of modem is a three-in-one solution, as it can simultaneously transfer data via Ethernet, serial, & digital I/O. In addition to this flexibility, the HSM also supports standard Wi-Fi communication with selectable RF speeds up to the 54Mbps in the standard mode for point-to-point and point-to-multipoint communication, and using turbo mode, can achieve speeds up to 108Mbps. In high RF noise or crowded bands, the user can set the modems to ignore those bands to maintain data integrity.


The modem is backward compatible with its legacy version HSM800Es & offers 630mW power for ranges up to 9 miles with clear LOS (line-of-sight). It is capable of operating in access point/client configuration mode, & function as a network bridge/router or act as a serial server (RS-232/RS-485).

Additionally, HSM’s integrated Modbus® protocol simplifies its integration with any other Modbus RTU/TCP device to decrease cost by reducing the components and cables needed for the integration. This capability also gives the user the opportunity to expand the function of the single digital I/O port by using any third-party Modbus devices in a virtually seamless deployment.

HSM240E- SD’s powerful over-air network diagnostics and configuration is designed for band-intensive applications used for IoT, Big Data, and Industry 4.0. Other key features include MAC and IP address filtering and VLAN tagging that separate traffic for bridging and routing modes.


The combination of these outstanding features has produced a superior quality modem with an array of connectivity options – making it an excellent choice for band-hungry applications. From Agriculture to Mining, Metals, & Cement to Water/Wastewater and industries in between, the HSM240E-SD High-Speed Modem is your Swiss Army knife for the solution to your industrial wireless network needs.




License-free, 2.412 GHz ~ 2.462 GHz ISM band


Whip antenna

Power supply 12 VDC, 2 Amp


Frequency Range: 2.412 – 2472 GHz ISM Band (AU,NZ, Brazil unlocked)       

Range with line-of-sight (LOS) Up to 9 miles/ 14.5 km     

Output Power: 15 to 630mW (User selectable or factory locked)

Transmit Modulation: OFDM (Orthogonal Frequency Division Multiplexing)


Receiver Sensitivity: –92 dBm at 11Mbps (802.11b), –74 dBm at 54Mbps (802.11g)  

RF Encryption: WEP(64 bit), WEP(128 bit),WPA2-PSK(AES), WPA-PSK(AES), WPA Enterprise

Channel Spacing: 5 MHz (13 channels 2.412 – 2.472GHz)                                           

Data Rate: 54Mbps (20MHz channels, auto); 108Mbps in Turbo Mode (40MHz single channel);   Auto Mode selects fastest rate possible relative to RSSI           

Antenna: Standard female, Standard polarity 

Front Panel Interface:

LED Indicators: OK (power), RX, TXLINK, RS-232, LAN, RS-485, DIO (digital I/O)                       

Digital I/O: Input voltage-free contact, Output – FET 30 VDC 500 mA                   

Ethernet: 100Base- T, RJ-45 connector, IEEE 802.3                       


  • RS232 – DB-9 female DCE, RTS/CTS/DTR/DCD                                                                                   
  • RS 485 – 2-pin terminal block, non-isolated
  • Data rate (BPS): 1200, 2400,4800, 9600, 14400, 19200, 38400, 57600, 76800,115200, 230400 bps
  • Settings: 7/8 data bits, stops/start/parity (configurable)

SMA Antenna: Standard thread SMA, female, 50Ω; 100-Base T, RJ45 connector




Top Panel LED Indicators: OK (power), RX, TXLINK, RS-232, LAN, RS-485, DIO (digital I/O)       

RF Network: Web-based diagnostics

Reported diagnostics: RSSI measurements, log file connectivity information/statistics

Power Supply       

Avg Current: 270 mA at 12 V (idle); 140 mA at 24 V (idle)

Transmit Current: 470 mA at 12 V (400mW); 250 mA at 24 V (600 mW)

Nominal Supply: 9 to 30 VDC under/overvoltage protection


System Address: ESSID, 1-31 character text string

User Configurable (Via HTTPS embedded web server): 

  • AP/WP/Bridge/Router/VLAN
  • Embedded Modbus Master/Remote for I/O transfer
  • Modbus TCP/RTU gateway
  • Point to point, point to multipoint
  • Serial client/server/multicast
  • Simultaneous RS-232/RS-485 connection
  • Wireless distribution system (AP-AP Repeater)

Security – Data encryption, 802.11i with CCMP 128-bit AES, support for 802.1× Radius server, HTTPS protocol

Bandwidth Protection: MAC address, IP filtering, ARP/GARP filtering; Whitelist/blacklist


EMC: 4.5in x 5.5in x 1.2in (11.4cm x 14.0cm x 3.0 cm) 

Hazardous area: CSA Class I, Division 2; ATEX; IECEx nA IIC

RF (radio): EN 300 328, FCC Part 15; RSS 210

Safety: IEC 60950 (RoHS compliant)

UL® : UL Listed

Enclosure: Powder-coated Aluminum weatherproof 

Dimensions:  4.5 in x 5.5 in x 1.2 in (11.4 cm x  14.0 cm x  3.0 cm )

Operating Environment: Temp -40 to +140º F (-40 to +60º  C) ; 0-99% RH non-condensing

Weight: 1.0 lb (0.45 kg)

Specifications are subject to change without notice.