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 and 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-of-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 interference 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 SRM6000Serial 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 LincView™ Diagnostic Software, an optional RF network diagnostics management tool for stand-alone SRM modems, offers system network monitoring and maintenance from Master locations.) 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 SRM6000wireless 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 and diagnostics
• SCADA systems, such as water/wastewater, utilities and
oil/gas systems
• Underground or off-shore communications
• High RFI environments (e.g., steel, manufacturing)

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

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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)

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*
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 antenna

Power
Supply Voltage. 10.5 - 18.0 VDC; 12 VDC wall mounted transformer. Optional 24 VDC
Transmit Current. 650ma @ 12 VDC @ 1 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

Weight:
2 lbs (.91k)

Enclosure:

Standard. NEMA 1; 18-gauge steel with mounting flanges.
Optional. NEMA 4 available
Chassis Mount. Available for Allen-Bradley, GE Fanuc and Schneider PLCs

Standard Enclosure Dimensions

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

LincView^TM Diagnostic Software

Data-Linc Group’s LincView™ Diagnostic Software provides an optional RF network diagnostics management tool for any of the wireless stand-alone modems in the SRM Family. LincView offers complete system network monitoring and maintenance from your Master location. Key parameters at a remote location can be monitored or changed with a few simple keystrokes. This allows technicians to track the actual data path to the Master, view every SRM network link in miles or kilometers and monitor key parameters such as signal or noise level, voltage and much more. LincView even provides visual trend analysis of packet errors, supply voltage levels and radio temperature.