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NL6000 Wireless Modem
NL6000 Wireless Modem
NL6000 User Manual
NL6000 User Manual
R Reevv11..11
WWW.RFNEULINK.COM
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Copyright Copyright © 2003 by RF Neulink. This manual may be reproduced for distribution with the NL6000 as long as the manual remains intact, in its entirety, with all appropriate Copyright, Intellectual property, and Trademark notices. This product contains intellectual property and copyrighted material owned by RF Neulink. Unless expressly agreed to in writing, no one may copy, disassemble, or distribute in any form, any computer readable information contained within this product, and in part
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TABLE OF CONTENTS 1. Product Overview ....................................................................................................... 6 1.1. Features ............................................................................................................. 7 2. Regulatory Information ............................................................................................... 9 3. Specifications .......................................................................................
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6.3. Serial Connection Setup .................................................................................. 31 Setting the Baud Rate......................................................................................... 31 Setting the Data Bits ....................................................................................... 31 Setting the Stop Bits ........................................................................................ 31 Setting the Transmit Character Timeout .....
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Appendix A Diagnosing and Correcting Performance Problems .................................... 45 Setting the Power Value............................................................................................... 45 Setting the Frequency Trim (includes setting Power) ............................................... 45 Setting the Deviation and Balance ............................................................................ 46 Setting the Receive Gain.....................................
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1. Product Overview The RF Neulink NL6000 is an integrated radio modem that provides reliable bi- directional RS-232 data transmissions on a land mobile radio channel. Configurable RS-232, radio, and packet data parameters provide the NL6000 with the flexibility necessary for use in both simple and complex networks. In its simplest configuration, the NL6000 transmits wireless data from one modem to another to send instructions and receive a response. In many cases, the factory- configured defaul
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The NL6000 s powerful and efficient packet communications protocol provides a solution to many of the problems affecting conventional wireless data networks. Bursts of noise, RF interference, inter-modulation, overload, and signal fade can corrupt and interrupt radio data links. The NL6000 eliminates these problems through the use of advanced technologies including sophisticated forward error corr ection tec hnol ogy. The NL6000 can trans mit in any of the following frequenc y ranges: • VHF 136
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Single and Multi- Point Addressing An NL6000 can be configured to transmit to a single unit, a group of units, or to broadcast to all units within range. Acknowledgement The NL6000 can be configured to request an acknowledgement (ACK) from the destination modem with each transmission. If it does not receive an ACK, the unit can retransmit a specified number of times. Auto-Transmit The NL6000 will automatically trigger transmission of data over the RF link: The NL6000 will wait for characters to
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2. Regulatory Information Notice It is the responsibility of the user of this equipment to obtain the proper FCC license to operate this product on the desired channel of operation. FCC Part 15 This product complies with Part 15 of the FCC rules and regulations (Code of Federal Regulations 47CFR Part 15). It may not be modified without the expressed consent of RF Neulink. Modification of this product could void the users authorizationto use the product. FCC Part 90 The NL6000 has been type accep
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3. Specifications GENERAL SPECIFICATIONS Dimensions 3.0 in L x 2.6 in W x 1.6 in H DC voltage input Nominal 10-15 VDC Operating temperature -30° C to +60° C Number of Channels 64 Number of ID codes 65,525 Over-the-air (Tx) data rate 12,000 bps or 22,050 bps Serial port baud rates 1200 bps, 2400 bps, 4800 bps, 9600 bps, 19.2 kbps, 28.8 kbps, 38.4 kbps RF input/output connector SMA-F Data interface 9-pin (DB9) Serial interface RS-232 async Mode of operation Simplex or Half Duplex Frequency control
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UHF RADIO SPECIFICATIONS Model Numbers NL6000 Transmission frequencies 450-470 MHz & 400-420 MHz Current Drain at 12 V: 0.2 amps IDLE radio channel Receive 0.2 amps Transmit: 0.5 watts 1.0 amps Transmit: 1.0 watts 1.2 amps Transmit: 2.0 watts 1.6 amps Transmit: 3.0 watts 1.9 amps Transmit: 4.0 watts 2.2 amps Transmit: 5.0 watts 2.6 amps Transmit: 6.0 watts 3.1 amps Transmitter: RF power 1 to 6 watts Modulation 4-FSK with spectral precoder Frequency stability 1.5 ppm Channel spacing 12.5 kHz (nar
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VHF RADIO SPECIFICATIONS Model Numbers NL6000-VHF (148-174 MHz) NL6000-VHF1 (136-162 MHz) Transmission frequencies 136-162 MHz, 148-174 MHz Current Drain at 12 V: 0.2 amps IDLE radio channel Receive 0.2 amps Transmit: 0.5 watts 1.0 amps Transmit: 1.0 watts 1.3 amps Transmit: 2.0 watts 1.7 amps Transmit: 3.0 watts 2.1 amps Transmit: 4.0 watts 2.4 amps Transmit: 5.0 watts 2.6 amps Transmit: 6.0 watts 2.8 amps Transmitter: RF power 1 to 6 watts Modulation 4-FSK with spectral pre-coder Frequency sta
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4. Hardware Installation and Operation 4.1. PartsDescription Figure3:PartsDescriptionoftheNL6000 Part# Description (1) AntennaConnector (2) USBPort(usedbyfactory) (3) Tx/RxLED (4) PowerConnector (5) Pwr/USBLED (6) SerialPort(DB9Connector) 4.2. PowerConnections Connecta12VDCpowersupplytothepowerconnectortoprovidepower totheNL6000. Note: Ifyouwanttouseanexternal poweramplifier,contacttheRF Neulinksalesdepartment. 4.3. SerialPort TheserialportontheNL6000isa9pinfemaleconnector. RF Neulink NL6000 Use
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The NL6000 is a Data Communications Equipment (DCE) device. Other equipment that can connect to the NL6000 via the serial port fall into one of the following categories: DTE Data Terminal Equipment (computers, mainframes, terminals) DCE Data Communications Equipment (modems, printers, other peripherals) Connect a DTE device to the DB9 connector with a 9-pin male connector wired one-for-one as shown in Figure 4 and Figure 5. Figure 4: DTE to DCE Connection DTE, 9 Pin Male on Computer DCE, 9 Pin F
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Connect a DCE device to the DB9 connector with a null modem cable wired as shown in Figure 6. Figure 6: DTE to DTE Connection 4.4. Antenna Connection You must connect a suitable antenna to the RF antenna connection. This antenna is used for both transmitting and receiving over-the-air messages. Caution: Do not operate the radio modem without an antenna. 4.5. LEDs Table 1 interprets the two LEDs on the NL6000. LED Color Meaning Tx/Rx Red Transmitting Green Receivingasignalontheactivechannel. None
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The NL6000 comes factory-configured for the broadcast mode of operation and tuned and tested on the default frequency of 464.550 MHz (UHF), 154.6000 MHz (VHF) and 221.5 MHz for the 216-235 MHz band. The NL6000 operates automatically after you properly install the physical units and configure the software parameters. In most networks with more than two units, you must set the MYID and TOID parameters before operation. Sections 5 and 6 discuss the available software parameters and the procedures f
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If a reliable path does not exist between a remote unit and a base station, you can configure one or more NL6000 units as a repeater to reach the hidden unit. The repeater can work with both simplex and half duplex networks. See Section 5.5 for additional detail on the unique behavior of a repeater unit. You can select from three radio channel transmission modes that provide increasing levels of error control. By evaluating the signal strength and path between two modems, you can select a transm
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Figure 8 shows the use of a wildcard (12FF) to transmit data to multiple units within range of Unit #1 that have a MYID starting with 12 Figure 8: Addressing with Wildcards Figure 9 shows the use of a wildcard (FFFF) to broadcast data to all units within range of Unit #1. Figure 9: Using Wildcards to Broadcast 5.5. Behavior of Repeater Units When configured as a repeater, the unit listens for packets that qualify for repeating in addition to its normal functions. A unit qualifies a packet for r
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Consider the following example of a repeater (MYID3000) configured to repeat packets transmitted from a base station (MYID2000) to a hidden remote (MYID4203). Unit MYID3000 is configured with a repeater entry that has a Trigger = TOID and ID = 4203. This entry tells unit MYID3000 to listen for packets that have a destination address of TOID4203. If the repeater receives a packet matching the criteria, it immediately repeats the packet. Figure 10 illustrates this scenario. Figure 10: Repeat from
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Figure 12: Repeat to Multiple Remotes using Wildcard Likewise, it is possible to set up a single repeater entry that will repeat packets received from any member of a group of hidden remotes. In Figure 13, a repeater entry with a Trigger = MYID and ID = 42FF repeats any packet received from the group of remotes matching MYID42FF. Figure 13: Repeat from Multiple Remotes using Wildcard If you plan to use more than one frequency in your network, frequency planning is important when you use repeater
