Data-Linc Group SRM6200E-SLC User Manual

Frequency hopping spread spectrum ethernet radio modem

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U
G
SER
UIDE
SRM6200E-SLC
Frequency Hopping Spread Spectrum
Ethernet Radio Modem
It is essential that all instructions contained in the User Guide are followed precisely to ensure proper operation of equipment.

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Summary of Contents for Data-Linc Group SRM6200E-SLC

  • Page 1 UIDE SRM6200E-SLC Frequency Hopping Spread Spectrum Ethernet Radio Modem It is essential that all instructions contained in the User Guide are followed precisely to ensure proper operation of equipment.
  • Page 2 This device must accept any interference received, including interference that may cause undesired operation. The device must be operated as supplied by Data-Linc Group. Any changes or modifications made to the device without the express written approval of Data-Linc Group may void the user’s authority to operate the device.
  • Page 3: Table Of Contents

    SRM6200E-SLC User’s Guide Table of Contents Page Introduction Quick Start Modem Configuration Main Menu Option (0): Set Operation Mode Main Menu Option (1): Set Baud Rate Main Menu Option (2): Edit Call Book Main Menu Option (3): Edit Radio Transmission Characteristics...
  • Page 4 SRM6200E-SLC User’s Guide PN 161-09990-002C DATA-LINC GROUP rev 3/29/04...
  • Page 5: Introduction

    A high RF data rate of 188kbps and superior sensitivity provide ultra reliable data integrity. The SRM6200E-SLC has a rated range of up to 25 miles (40 km) and an installed range of up to 35 miles (56 km) in optimal conditions with line-of-sight and an omni directional antenna.
  • Page 6: Quick Start

    The SRM6200E-SLC is available in three different power configurations: • SRM6200E-SLC is a 12VDC powered device that is designed to take 12VDC in on the barrel jack on the front panel. •...
  • Page 7 “Master to Remote” or “Remote to Master” connection can be established through the modems. Also note that because of the MAC filtering done by the modems, if you take a piece of Ethernet equipment on one side of the SRM6200E-SLC network and move it to the other side of said network, you must power down both the “Master”...
  • Page 8: Modem Configuration

    Most parameters are changed in the radio section of the modem although there are a few settings that are set using switches. If you are not sure if you need to change the configuration of the SRM6200E-SLC, you probably don’t.
  • Page 9 When the setup program is invoked the RF “IN” LED on the SRM6200E-SLC front panel will flash once when the Configure button is pressed and the RF “Link” LED will remain on for the entire time the radio modem is in setup mode.
  • Page 10: Main Menu Option (0): Set Operation Mode

    (1) Point-to-Point Remote When set up as a point-to-point remote, an SRM6200E-SLC will communicate with any master in its call book, either directly or through one or two repeaters. When functioning as a remote, the Entry to Call feature in the radio modem’s call book (Figure 3) is not operational.
  • Page 11 (5) Point-to-Point Repeater SRM6200E-SLC radio modems allow the use of up to two repeaters in a communications link, significantly extending the operating range. When designated as a repeater, a radio modem behaves as a pass-through link. All settings for the call book, baud rates, and radio transmission characteristics are disabled.
  • Page 12: Main Menu Option (1): Set Baud Rate

    Main Menu Option (2): Edit Call Book The Call Book is an innovative feature in the SRM6200E-SLC that offers both security and flexibility in use. The Call Book accomplishes this by allowing the user to determine with which other SRM6200E-SLCs a given radio modem will communicate, based on the call book numbers for both the Master and Remote.
  • Page 13 SRM6200E-SLC User’s Guide Entering or Modifying Numbers in the Call Book Entering or modifying call book numbers in the Call Book is a straightforward process. When in the Call Book menu select the entry number (0 – 9) you wish to edit. You will be prompted for the new number (formatting is automatic, you do not need to enter the dash).
  • Page 14: Main Menu Option (3): Edit Radio Transmission Characteristics

    Selection (0) in the Radio Parameters menu allows the user to modify the hopping patterns of the radio modems to minimize the interference with other SRM6200E-SLC radio modems in operation in the area. For instance, if there were 10 pairs of SRM6200E-SLCs in operation within a factory or refinery, changing the Frequency Key would ensure that they would not jump onto the same frequencies at the same time for the same length of time.
  • Page 15 SRM6200E-SLC User’s Guide Table 2: Minimum Packet Size Settings (bytes) Table 3: Maximum Packet Size Settings where RF Data Rate=3 Maximum Setting PN 161-09990-002C DATA-LINC GROUP rev 3/29/04...
  • Page 16 (4) RF Data Rata The SRM6200E-SLC has two settings for the RF Data Rate (the speed that the modems talk to each other). Setting 2 should be used when the radio modems are close together and data throughput is to be optimized. Setting 3 should be used when the radio modems are farther away and a solid data link is preferred over data throughput.
  • Page 17 (6) Remote Security With option 6 the user may disable the radio modem’s security so it will accept a call from any other SRM6200E-SLC. The default setting is 0 where security is enforced (the caller’s call book number must be in the Remote’s Call Book).
  • Page 18: Main Menu Option (4): Show Radio Statistics

    High noise levels can often be improved with bandpass filters, antenna placement or antenna polarization. Please contact Data-Linc Group for more information. Average Signal Level The average signal level indicates the level of received signal at this modem and at each of the modems used as repeaters in the link.
  • Page 19 Radio Temperature The radio temperature value is the current operating temperature of the radio in degrees C (Celsius.) For proper operation, SRM6200E-SLC radio modems must be in the range of –40 to 75 Multi-Point Operation In a multi-point system, a radio modem designated as a master is able to simultaneously be in communication with numerous remotes.
  • Page 20: Main Menu Option (5): Edit Multi-Point Parameters

    This parameter does need to be set for multi-point remotes. In point-to-point operation, the SRM6200E-SLC radio modems acknowledge every data packet transmitted. In a multi-point network, the Remotes do not acknowledge transmissions from master to remotes. This is to prevent system overload. If the Remotes acknowledged all data transmissions from the Master in a large multi-point system, then all system capacity would be spent having the Master listen for acknowledgments from the Remotes.
  • Page 21 When in this mode a SRM6200E-SLC will repeat any packets sent from a master as well as send them out the Ethernet port. This gives a SRM6200E-SLC set as a repeater to act as a remote at the same time. 0 disables this mode, 1 enables it.
  • Page 22 SubNet ID The SRM6200E-SLC series modems offer a SubNet ID system for use in multi-point networks using Network ID. This feature allows the users to dictate what path a given repeater or remote will use to achieve a link to the network Master. For example, if a remote modem in a given network has line of sight to the network Master and one or more repeaters, but only one repeater is close to that Remote, SubNet ID can be used to link that Master with the proper Repeater only.
  • Page 23: Main Menu Option (8): Password

    Caution: If the password feature is enabled and you cannot remember the password, the radio modem will have to be returned to Data-Linc Group to have the password disabled. Use with caution. Option (8) in the Main Menu allows the user to set a password which will prevent unauthorized users to change the configuration of the modem.
  • Page 24: Modem Location

    SRM6200E-SLC Location Selection Placement of your SRM6200E-SLC is likely to have a significant impact on its performance. In general, the rule of thumb with the SRM6200E-SLC is that the higher the placement of the antenna the better the communication. In practice you should also place the radio modem itself away from computers, telephones, answering machines, and other similar equipment.
  • Page 25: Modem Front Panel Led's

    SRM6200E-SLC User’s Guide SRM6200E-SLC Front Panel LEDs The LEDs on the SRM6200E-SLC’s front panel provide important information on the operation of the radio modem. The below tables describe the LED’s indication. . t i Diagram 2 Pinout of the SRM6200E-SLC Programming Cable.
  • Page 26 SRM6200E-SLC User’s Guide Diagram 3 The locations of the jumpers and switches of the SRM6200E-SLC. COPYRIGHT 2002 COPYRIGHT 2002 SW 2 is the configure menu switch used in conjunction with the programming cable SW 3 is the 10 Base-T crossover switch...
  • Page 27: Sample Data Communication Links

    The SRM6200E-SLC’s versatility allows data communication links to be established using a variety of different configurations. This, in turn, makes it possible to extend the range of the SRM6200E-SLC and get around obstacles. Diagram 4 shows the most common and straightforward link, a master communicating to a remote in a dedicated link.
  • Page 28 SRM6200E-SLC User’s Guide Diagram 6 depicts an example of a point-to-multi-point system. In this example any data sent from the Master is broadcast to all four remotes. One remote is receiving data directly from the Master, two others are connected through a repeater while the last one is getting its data from a repeater configured as a repeater/remote.
  • Page 29: Technical Specifications

    SRM6200E-SLC User’s Guide Technical Specifications s t t s t t i n i c i l e l i n i l > l e l i n i l i t p i t t t n i...
  • Page 30: Troubleshooting

    “I am able to link to a remote unit within line of sight when the SRM6200E-SLC I have is outside. However, as soon as I walk inside with it I lose the link, even if I place the Radio Modem by the window which faces the Remote unit.”...
  • Page 31: Technical Support

    Data-Linc Group warrants equipment of its own manufacture to be free from defects in material and workmanship for one year from date of shipment to original user. Data-Linc Group will replace or repair, at our option, any part found to be defective.

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