Users Manual

74 MDS™ Master Station MDS 05-6399A01, Rev. G
- 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 band-
width sizes of 6.25KHz, 12.5KHz, and 25KHz. The 700MHz Licensed Narrowband module sup-
ports channel bandwidth sizes of 50kHz as well. 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 conver-
sion receiver to provide dependable wireless communications. An advanced Media Access Con-
trol (MAC) provides advanced interference avoidance, error detection, retransmission, auto re-
peat, and guaranteed collision free data. 10-Watts of peak power and dynamic FEC extend cover-
age to up to 50 miles.
The specifications for the LN100 NIC module:
x Frequency Range(s): 150-174 MHz
x FCC Part 90 (private land mobile radio services)
x FCC ID: E5MDS-LN100
x ICID: 101D-LN100
The specifications for the LN200 NIC module:
x Frequency Range(s): 216-235 MHz, 216-222 MHz
x FCC Part 80, Part 90 (private land mobile radio services), Part 95
x FCC ID: E5MDS-LN200
x ICID: 101D-LN200
The specifications for the LN400 NIC module:
x Frequency Range(s): 406-470 MHz, 330-406 MHz
x FCC Part 90 (private land mobile radio services)
x FCC ID: E5MDS-LN400
x ICID: 101D-LN400