SRM6000 Wireless Serial Radio Modem
902-928 MHz

Data-Linc Group's SRM6000 license-free wireless serial modem for the 900 MHz ISM band

Features License-free wireless— operates in the 902-928 MHz ISM (industrial/scientific/medical) band Rated range of up to 25 miles (40 km) and installed range of up to 35 miles (56km) with line-f-sight and an omni directional antenna— farther with Repeaters or higher gain antennas Employs Smart Spectrum™ frequency hopping technology for maximum data integrity— even in high noise environments Factory or field configured for your application, ensuring trouble-free installation User configurable for Master, Remote, Repeater or Repeater/Remote mode Frequency key options allow for different systems to operate simultaneously in close proximity Note: For European Union applications see SRM6100/EU

Data-Linc Group’s wireless, license-free SRM6000 Serial Modem offers superior reliability, versatility and performance for wireless serial transmission. The SRM6000 is factory pre-configured for easy, hassle-free installation. It offers an unsurpassed rated range of up to 25 miles (40 km) and an installed range of up to 35 miles (56 km) with line-of-sight and an omni directional antenna, farther with Repeaters and/or higher gain antennas.

The SRM6000 employs Smart Spectrum^TM frequency hopping spread spectrum (FHSS) technology in the 902-928 MHz frequency band for secure, robust communication. Data-Linc Group’s FHSS technology, coupled with 32-bit CRC error detection, enables the SRM6000 to reliably deliver critical information.

RF site surveys are usually unnecessary and an FCC site license is not required. The SRM6000 wireless technology eliminates the need for hard wire or fiber cable, which are often expensive and difficult to install.

The SRM6000 supports a number of configurations, including point-to-point and point-to-multipoint and even multiple Repeaters if required. Multipoint operation permits an unlimited number of Remotes. The SRM6000 can also function as a Repeater/Remote to extend range or work around obstructions. Back-to-back radio modems are not required for Repeater function.

Industrial Applications

The SRM6000 is ideal for industrial automation systems with:

• PLCs located on moving platforms, overhead cranes and turntables or other revolving equipment

• Remote PLC programming

• SCADA systems, such as water/wastewater, utilities and oil/gas systems

• Underground or off-shore communications

• High RFI environments (e.g., steel, manufacturing)

• Industrial automation machine control on plant floors

Data-Linc Group's SRM6000 utilizes Smart Spectrum technology— ideal for critical applications that demand reliable and secure communications. See also Smart Spectrum FAQ.

Download a printable pdf (743K) version of this SRM6000 data sheet.
To read pdf files you need to have Adobe Acrobat Reader installed on your PC.

SRM6000 Specifications

Operating Frequency
License-free, 902-928 MHz

Transmitter
Rated Range. 25 miles (40 km), line-of-sight distance
using omni directional antennas
Installed Range. Up to 35 miles (56 km), line-of-sight distance
using omni directional antenna
Output Power. 1 Watt maximum (10 programmable
steps up to 1 Watt) (+30 dBm)
Modulation.
Spread Spectrum, GFSK
Spreading Code. Frequency Hopping
Hop Patterns. 15 (user selectable)
Occupied Bandwidth. 230 KHz

Receiver
Sensitivity. -108 dBm @ 10^-6 raw BER;
Selectivity. 40 dB @ fc ±230 KHz;
60 dB @ fc ±460 KHz
System Gain. 135 dB

RF Data Transmission
Error Detection. 32 Bit CRC
Data Encryption. Substitution Dynamic Key
RF Data Rate. 144 Kbps - 188 Kbps

Interface
RS232. Asynchronous, 10 or 11 bit words,
Optional RS422 and AE485*
* AE422/485 Auto Enable function compatible with RS422/485
Data Throughput (uncompressed).
1200 Baud - 115.2 Kbaud (115.2 Kbaud throughput measured assuming 75% frequency availability)
Connector. RS232, DB9 female

Antenna
Standard thread SMA female
Supplied bench test antenna
Optional external omni directional or yagi antennas

Power
Supply Voltage. 10.5 - 18.0 VDC; 12 VDC wall mounted transformer. Optional 24 VDC
Transmit Current. 650mA @ 12 VDC @ 8 Watt
Receive Current. 100mA @ 12 VDC

Operating Modes
Point-to-point, point-to-multipoint, Store-and-forward Repeater, Repeater/Remote

Diagnostics
Serial Data Port. Stored signal strength, noise and disconnect information
Optional. LincView™ Diagnostic Software for real-time RF network monitoring

Operating Environment
Temperature. -40° to 167°F (-40° to +75°C)

Humidity. 0 to 95% non-condensing humidity

Enclosure
Standard. NEMA 1; 18-gauge steel with mounting flanges.
Chassis Mount. Available for Allen-Bradley, GE Fanuc and Schneider PLCs

Weight:
2 lbs (.91k)

Standard Enclosure Dimensions

PLC rack mount SRM6000 RF serial modems shown in Schneider Quantum and Allen-Bradley SLC chasses.

Multiple mounting orientations available with universal mounting brackets. Optional DIN rail clip mounts on the back of the modem.

Smart Spectrum^TM Frequency Hopping Technology

Data-Linc Group has optimized wireless communications for maximum reliability with Smart Spectrum frequency hopping technology. Smart Spectrum ensures reliable wireless communications without requiring an FCC site license. Smart Spectrum uses a unique combination of advanced frequency hopping, high radio frequency (RF) data rate and sensitive RF receiver.

Smart Spectrum uses a high RF data rate of 188 kbps to ensure adequate throughput data rates even with high interference. Additionally, the outstanding noise immunity when coupled with a sensitive RF receiver allows long range communication with easy-to-install omni directional antennas.

Data-Linc Group's SRM6210E utilizes Smart Spectrum technology— ideal for critical applications that demand reliable and secure communications. See also Smart Spectrum FAQ.