GE Grid Solutions MDS Master Station - LNMS Interface; Understanding

74 MDS™ Master Station MDS 05-6399A01, Rev. F
• MAC Acknowledgements – Total number of MAC frames acknowledged by the access
point. (when operating as a remote)
• MAC TTL Expirations – Total number of frames dropped due to expired time-to-live
counters.
5.11 LNMS interface
Understanding
Licensed Narrowband Modules are available in various global frequencies.
The term “LN” is used to denote all licensed 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 (MAC) 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 LN700 NIC module:
 Frequency Range(s): 757-788 MHz
 FCC Part 90 (private land mobile radio services)
 FCC ID: E5MDS-LN700
 ICID: n/a
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