Instruction/ maintenance manual of the product MDR210A-485 Black Box
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MDR210A - 485 900 MHz. Frequency Hopping RS - 485 Master/Slave auto - sensing radio interface. Black Box Corporation – Lawrence, PA - http://www.blackbox.
2 Table of Contents Description………………………………………………………………3 Features………………………………………………………………….4 Serial Port Scanning…………………………………………………5 Application Fields…………………………………………………….
3 Description The MDR210A - 485 uses an embedded 100 - milliwatt, frequency - hopping wireless modem that provides communication between a local RS485 network and a remote network of RS485 connected devices. The MDR210A - 485 will automatically sense the direction of data flow and switch the RS485 and Radio devices accordingly.
4 Features res General Purpose 900 MHz. Spread Spectrum Frequency Hopping Transceiv General MDR210A - 485 Frequency Range 902 to 928 MHz., unlicensed IS M Band Type Frequency Hopping Spread Spectrum Transceiver Frequency Control Direct FM Transport Protocol Transparent networking Channel Capacity Hops through 25 channels.
5 9XSTREAM - 192/96 Radio Introduction The 9XSTREAM - 192/96 radio is a 100 - milliwatt frequ ency hopping wireless modem that communicates with other equipment using a standard 19200 or 9600 - baud asynchronous serial data stream. The radio is half - duplex and can sustain a continuous data stream at the specified data rate.
6 9XStream Frequency Hopping Data Radio FCC Complia nce Warning: Changes or modifications to the 9XStream Data Radio not expressly approved by MaxStream, Inc.
7 Ante nna Antenna Connector MMCX Female Antenna Impedance 50 Ohms unbalanced Approved Antennas Integral wire antenna (factory installed) Astron AXQ9PRLMMCX – 1/4 wave flexible whip Astron AXH900 RP.
8 hop in a different sequence) the two modules will jump to separate channels on the next hop. Using networks, multiple module pairs can operate in the same vicinity with minimal interference from each other. The network parameter is user - defina ble using the MDR210A - 485 Set - up Hop Table.
9 Figure 2a – Generation of Data Packets Data Validity (Cont.) To verify data integrity, a 16 - bit cyclic redundancy check (CRC) is computed for the transmitted data and attached to the end of each data packet before transmission. The receiver will then compute the CRC on all incoming data.
10 Data Packets – A grouping of data to be sent over - the - air. Each data packet contains a header and data that is collected from the data buffer. The size of the packets varies up to 64 bytes depending on how many bytes of data are in the data buffer.
11 Application Notes Why does Sensitivity Matter? Receiver sensitivity is the lowest power level at which the receiver can detect a wave and demodulate data. Sensitivity is purely a receiver specification and is independent o f the transmitter. As the wave propagates away from the transmitter, it attenuates as the distance increases.
12 Application Notes (cont.) Range Receive d Detectable by Detectable by (meters) Power MDR210A - 485 Commercial Radio 100 - 68.526 dBm YES YES 500 - 82.506 dBm YES YES 1000 - 88.526 dBm YES YES 3000 - 92.048 dBm YES NO 5000 - 102.506 dBm YES NO 8000 - 106.
13 Appe ndix A – Specifications General Frequency Range 902 to 928 MHz, unlicensed ISM Band Type Frequency Hopping Spread Spectrum Transceiver Frequency Control Direct FM Transport Protocol Transparent Networking Channel Capacity Hops through 25 channels.
14 FCC Compliance Warning: Warning: This device complies with part 15 of the FCC Rules. Operation is subject to the following conditions: 1. This device may not cause harmful interference, and 2. This device must accept any interferen ce received, including interference that may cause undesired operation.
An important point after buying a device Black Box MDR210A-485 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Black Box MDR210A-485 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Black Box MDR210A-485 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Black Box MDR210A-485 you will learn all the available features of the product, as well as information on its operation. The information that you get Black Box MDR210A-485 will certainly help you make a decision on the purchase.
If you already are a holder of Black Box MDR210A-485, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Black Box MDR210A-485.
However, one of the most important roles played by the user manual is to help in solving problems with Black Box MDR210A-485. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Black Box MDR210A-485 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
