GE MDS ORBIT ECR, Техническое руководство

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124 MDS Orbit MCR/ECR Technical Manual MDS 05-6632A01, Rev. F
Licensed Narrowband (LN) 3.5.5
Understanding
Licensed Narrowband Modules are available in various global frequencies.
The term “LN” is used to denote
all licenced narrowband modules within the Orbit family. Specific
identification, such as “LN400,” is used when necessary to reference band-specific hardware.
The LN NIC modules are reliable point-to-multipoint, wireless data transmission products. An LN NIC
can operate as an Access Point or Remote.
Licensed Narrowband modules provide robust long-distance communication in channel bandwidth sizes
of 6.25KHz, 12.5KHz, and 25KHz. Depending on bandwidth, raw data rates range from 20kbps to
120kbps. The radio is suitable to interface both Ethernet and Serial controllers such as PLCs, RTUs and
SCADA systems while offering greater throughput then traditional FSK solutions. The module utilizes
QAM modulation, a highly efficient PA, and a direct conversion receiver to provide dependable wireless
communications. An advanced Media Access Control provides advanced interference avoidance, error
detection, retransmission, auto repeat, and guaranteed collision free data. 10-Watts of peak power and
dynamic FEC extend coverage to up to 50 miles.
The specifications for the LN400 NIC module:

Frequency Range(s): 406-470 MHz, 330-406 MHz

FCC Part 90 (private land mobile radio services)

FCC ID: E5MDS-LN400

ICID: 101D-LN400
The specifications for the LN900 NIC module:

Frequency Range: 896-960 MHz

FCC Part 90 (private land mobile radio services) & Part 101

FCC ID: E5MDS-LN900

ICID: 101D-LN900
The general specifications for all LN NIC modules are:

Power Output: 20 dBm to 40 dBm peak power in 1.0 dBm steps (DEFAULT = 40 dBm)

Output Impedance: 50 Ohms

Antenna Connector: TNC female

Modulation Type: QPSK, 16QAM, 64QAM

FEC: Convolutional and Reed Solomon

Data Rates: 20kbps - 120kbps