User's Manual

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MDS NX915 Integrator’s Guide

Part No. 05-6697A01

1.0 INTRODUCTION

The MDS NX915 (Figure 1), is a multi-modem modular system offering both Frequency Hopping Spread Spectrum

and DTS transceiver modes that are designed for use in the license-free 902-928 MHz band. The unit is designed for

use inside data equipment to provide reliable connectivity in wireless networks.

The NX915 power control circuit ensures that the RF output never exceeds +30 dBm at the antenna connector. The

module is designed for OEM use only. Host systems, if used with antennas having standard connectors, must be

professionally installed. Host systems using integrated antennas or unique antenna connectors must be factory

configured by the OEM to operate at the correct output power setting. Refer to the table at the end of this guide to

determine applicable antenna types and the RF output power allowed.

1.1 Transceiver Features

The NX915 maximizes performance and flexibility in wireless networks, offering the following key features:

•Up to 81 channels over 902–928 MHz, divided into multiple zones

•User-selectable option to skip sub-bands with interference

•Multiple available network addresses

•Network-wide configuration from the Master station, eliminating most trips to Remote sites

•RSSI and LQI readback indicators

•Poor load VSWR detection alarm indicator

•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 4.5 Vdc at the MiniPCIe card edge power connections

Figure 1. NX915 Transceiver Module

(Mini PCI-Express Card Edge for Data/Power/& I/O and J300 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)

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MDS NX915 Integrator’s Guide Part No. 05-6697A01 1.0 INTRODUCTION The MDS NX915 (Figure 1), is a multi-modem modular system offering both Frequency Hopping Spread Spectrum and DTS transceiver modes that are designed for use in the license-free 902-928 MHz band. The unit is designed for use inside data equipment to provide reliable connectivity in wireless networks. The NX915 power control circuit ensures that the RF output never exceeds +30 dBm at the antenna connector.
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.0 INSTALLATION The transceiver is designed for installation in existing electronic equipment. The I/O and power connections are made through the Mini PCI-Express card edge and it mounts to the host heatsink assembly using two #4 screws inside the RF can area. The required heatsink contact area on the bottom surface of the PCB has the solder mask removed for proper heat transfer. Only one cable connection is required to the radio for the J300 Antenna connector.
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7. Set the radio’s basic configuration with a PC terminal through the Host system. The three essential settings for all transceivers are (See Section 3 for commands): •Frequency •Power •Modem 8. In a normally operating system, you will see the CR100 POWER LED turn on at start-up. 9. Optimize the installation by checking: •Antenna aiming and SWR check •Optimal baud rate setting •Radio interference checks 3.0 RADIO PROGRAMMING There are no manual adjustments on the radio.
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.0 DC INPUT REQUIREMENTS 4.1 Power Consumption Ratings The module has the following nominal power consumption ratings when operated at the required input voltage of 4.5 Vdc (-0.05/+0.05 V tolerance) at the power connections: Active Receive Mode: 130mA, Transmit Mode (Worst Case Load): 1.3 Amperes 4.5 VDC Power Regulation must be met by OEM to satisfy LMA conditions: OEM Integrator should consult with Product Support for individual circuit implementations.
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.0 REGULATORY AND RF OUTPUT POWER REQUIREMENTS 5.1 Technical Assistance Factory technical assistance is available by contacting GE MDS during business hours (8:30 AM to 6:00 PM Eastern Time). Use one of the following means to contact the factory: Telephone: (585) 241-5510 FAX: (585) 242-8369 E-mail: gemds.techsupport@ge.com Web: www.gemds.com 5.2 Regulatory Information Federal Communication Commission Sec 15.
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pour chaque type d'antenne indiqué. Types d'antennes ne figurent pas dans cette liste, ayant un gain supérieur au gain maximum indiqué pour ce type, sont strictement interdites pour une utilisation avec cet appareil. FCC Limited Modular Approval Notice This device is offered as an FCC Part 15 Unlicensed Limited Modular Transmitter (LMA).
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5.3 RF Output Settings Consult Table 3 for the maximum applicable power settings. The NX915 is a multi-modem system offering both Frequency Hopping Spread Spectrum and DTS transceiver modes in the license-free 902-928 MHz band. It therefore has specific output power limits for each modem dependent on your installation.