Simoco Xm Ethernet Radio

Xm is a best in class radio modem renowned for overall data throughput and reliability. The software defined radio is a native IP device allowing for both Ethernet and Serial communications.

Resilient Communications

The Simoco Xm Ethernet Radio provides resilient communications for mission critical applications for Utilities such as SCADA & Telemetry, SmartGrids & Smart Cities.

Flexibility and Scalability

Within a Xm network every unit can serve as the central master, a repeater, a remote terminal or all of these simultaneously. These various configurations allow a variety of network topologies such as point-topoint, point-to-multipoint, and mesh, allowing for scalability and ease of deployment.


Combining both IP and serial connectivity, Xm modems are suitable for use with the latest SCADA technology, also providing a clear migration path from serial based infrastructure thanks to the modems inbuilt “migration solution software” which allows the phased replacement of legacy radio modems.

Frequency Bands: 135-154; 154-174; 215-240; 300-320; 320-340; 340-360; 368-400; 400-432; 432-470; 470-512; 928-960 MHz
Channel Spacing: 6.25 / 12.5 / 25 / 50 kHz
Frequency Stability: +/- 1.0 ppm
Modulation: Linear: 16DEQAM, D8PSK, π/4DQPSK, DPSK
Exponential (FM): 4CPFSK, 2CPFSK
RF Data rate - CE: Refer to brochure
RF Data rate - FCC: Refer to brochure
RF Data rate - Unlimited: Refer to brochure
Ethernet: 10/100 Base-T Auto MDI/MDIX RJ45
COM1: RS232
300–115 200 bps DB9F
COM2: RS232/RS485 SW configurable DB9F
300–115 200 bps
USB: USB 1.1 Host A
Antenna: 50 Ohms TNC female
IP Code: IP40
Temperature: -40 to +70 oC / -40 to +158 oF
Humidity: 5 to 95% non-condensing
Primary Power: 10 to 30 VDC, negative GND
Rx: 5 W @ 13.8 V; 4.8 W @ 24 V; (Radio part < 2 W)
Tx: 5W RF: 33.1 W @ 13.8 V; 31.2 W @ 24V
10W RF: 41.4 W @ 13.8 V; 38.4 W @ 24V
Sleep mode: 0.1 W
Save mode: 2W
RF Output Power (Carrier and Modulated): Linear: Programmable 0.5 - 2W
Exponential (FM): Programmable 0.1 - 10W
Duty Cycle: Continuous
Rx to Tx Time: < 1.5 ms
Intermodulation Attenuation: > 40 dB
Spurious Emissions (Conducted): < -36dBm
Spurious Emissions (Radiated): < -36dBm
Adjacent channel power: < -60dBc
Transient adjacent channel power: < -60dBc
Sensitivity: -90dBm to -122dBm (depending on bandwidth, modulation, FEC level, BER level and regulatory method & mask)
Anti-aliasing Selectivity: 50kHz @ -3dB BW
Tx to Rx Time: < 1.5 ms
Maximum Reciever Input Power: 20 dBm (100 mW)
Rx Spurious Emissions (Conducted): < -57dBm
Radiated Spurious Emissions: < -57 dBm
Blocking or Desensitization: -21dB to 7dB
Spurious response rejection: > 70dB
Casing: Rugged die-cast aluminium
Dimensions: 150 W x 118 D x 50 H mm (5.90 x 4.65 x 1.97 in)
Weight: 1.1kg (2.4lbs)
Radio Link Testing: Yes (ping with RSS, Data Quality, Homogenity)
Watched Values: Device-Ucc, Temp, PWR, VSWR, HW Alarm Input.
Radio channel-RSScom, DQcom, TXLost[%]
User interfaces-ETH[Rx/Tx], COM1[Rx/Tx],
Statistics: For Rx/Tx Packets on User interfaces (ETH, COM1,
COM2) and for User data and Radio protocol
(Repeates, Lost, ACK etc.) on Radio channel
Graphs: For Watched values and Statistics
Certifications: CE, FCC, ATEX, IECEx
Operating modes: Bridge/Router
User Protocols on COM: Modbus, IEC60870-5-101, DNP3, UNI, Comli, DF1, RP570, Profibus
User Protocols on Ethernet: Modbus TCP, IEC60870-5-104, DNP3 TCP, Comli TCP, Terminal server
Multi master applications: Yes
Report by exceptions: Yes
Collision Avoidance Capability: Yes
Repeaters: Store-and-forward; Every unit; Unlimited number
  • Long range
  • Diagnostics & Network Management
  • Reliability
  • SCADA protocols
  • Security & Integrity
  • Others - See brochure