User's Manual

MDSLN900Integrator’sGuide 056739A01,revision5
[1]
MDSLN900Integrator’sGuide
1.0INTRODUCTION
The LN900 (Figure 1), is a fixed location (not intended for mobile use), multi-modem system operating in licensed
bands between 896-960MHz, using channel bandwidths of 6.25kHz, 12.5kHz, and 25.0kHz. Modulation choices for
each bandwidth include FSK, QPSK, 16QAM, and 64QAM. Maximum power and modem speed is based on
frequency, modem choice, and applicable emission mask. Transmit operation in a normal running system is governed
by a Media Access Control Protocol, with distributed control functionality between AP and remotes, such that all
stations act to control the emissions and operation of other stations in the system.
The unit is designed for use inside data equipment to provide reliable connectivity in wireless networks. The LN900
power control circuit ensures that the RF output is linear and never exceeds +41 dBm at the antenna connector. The
module is designed for OEM use only. Host systems must be professionally installed. Host systems must be factory
configured by the OEM to operate at the correct frequency and output power setting. Refer to the table at the end of
this guide to determine applicable antenna types and the RF output power allowed.
1.1TransceiverFeatures
The LN900 maximizes performance and flexibility in wireless networks, offering the following key features:
Selectable frequency (896-960MHz)
Selectable bandwidth (6.25kHz, 12.5kHz, 25.0kHz)
Selectable modem choices (FSK, QPSK, 16QAM, 64QAM)
RSSI and EVM readback indicators
Store-and-Forward repeater operation
Same hardware for Master, Remote, or Store-and-Forward configurations
Supports RS/EIA-232(TTL), Ethernet, and USB user interfaces
Operates at 5.0 Vdc at the MiniPCIe card edge power connections and 10-60Vdc at the 3-pin power
connector.
Figure 1. LN900 Transceiver Module
(Mini PCI-Express Card Edge for Data/Power/& I/O and J700 Antenna)
NOTE: Some features may not be available on all units, based on the options purchased, or regulatory constraints in
the country of operation.

Summary of content (7 pages)