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CL4490 User Guide

Version 3.0

Americas: +1-800-492-2320 Option 2
Europe: +44-1628-858-940
Hong Kong: +852-2923-0610
www.lairdtech.com/ramp

26

Laird Technologies

8.

To configure the Hop Master, select Server and Broadcast Mode. Make note of the RF Channel
Number (

). Once the appropriate changes have been made, click Write Radio. A Write

Successful prompt appears after a successful write. Note that the values are shown using
hexadecimal representation; you may change this to decimal notation by double-clicking on the
word “Hex” (it changes to “Dec”).

Figure 11: Hop Master settings

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Содержание CL4490

Страница 1: ...CL4490 USER GUIDE VERSION 3 0 wireless support lairdtech com www lairdtech com ramp ...

Страница 2: ...e Installation Instructions WARNING To satisfy FCC RF exposure requirements for mobile transmitting devices this equipment must be professionally installed such that the end user is prevented from replacing the antenna with a non approved antenna The end user should also be prevented from being within 20cm of the antenna during normal use with the exception of hands feet wrists and ankles The prec...

Страница 3: ...rdtech com ramp 3 Laird Technologies REVISION HISTORY Version Date Changes Version 1 0 Initial Release Version 1 1 Oct 2012 Major changes and revisions throughout document Version 2 0 5 April 2013 Major changes and revisions updated format and data Version 3 0 10 December 2013 Separated from Hardware Integration Guide ...

Страница 4: ... Status LEDs 6 CL4490 6 CL4490 PRO 6 Theory of Operation 7 RF Architecture 7 Network Topologies 7 Modes of Operation 8 Security 11 Programming the CL4490 13 Appendix I Troubleshooting 15 Force 9600 Baud Recovery 18 Appendix II Sync to Channel 19 Sync to Channel What is it and do I need to use it 19 How do I configure Sync to Channel 22 I ve configured my radios what s next 29 Related Documents and...

Страница 5: ...ommunication protocol to provide secure data transmissions Using FHSS technology ensures data reliability over long distances The license free frequency bands ensure that the units are ready for use with no further certification requirements Each unit is small and easily portable for use in mobile and temporary settings as well as fixed installations The CL4490 configuration software enables custo...

Страница 6: ...en in range of the server It is always lit on a server Rx Green When flashing indicates the CL4490 is receiving data Tx Red When flashing indicates the CL4490 is transmitting data CL4490 PRO Figure 2 CL4490 PRO Status LEDs Note DIP Switches only appear on the CL4490 PRO Table 2 describes each of the CL4490 Status LEDs Table 2 CL4490 PRO status LEDs LED Color Description Pwr Green Device is powered...

Страница 7: ...different nodes in a network connect to each other and how they communicate is determined by the network s topology The CL4490s support a Point to Point and a Point to Multipoint network topology Point to Point A Point to Point system is a simple arrangement consisting of just two CL4490s programmed to the same System ID and RF Channel a single server client pair Sometimes referred to as a wireles...

Страница 8: ...If a receive acknowledgement is not received the radio uses a transmit retry to resend the packet The radio continues sending the packets until either 1 it receives an acknowledgement or 2 it has used all transmit retries The received packet only sends to the OEM host if and when it is received free of errors Broadcast Packets When sending a broadcast packet the RF packet sends out to every eligib...

Страница 9: ...CL4490 User Guide Version 3 0 Americas 1 800 492 2320 Option 2 Europe 44 1628 858 940 Hong Kong 852 2923 0610 www lairdtech com ramp 9 Laird Technologies Figure 4 Pending RF data in buffer flow ...

Страница 10: ...CL4490 User Guide Version 3 0 Americas 1 800 492 2320 Option 2 Europe 44 1628 858 940 Hong Kong 852 2923 0610 www lairdtech com ramp 10 Laird Technologies Figure 5 Pending RF data in buffer flow ...

Страница 11: ...hem more noise like It is this very characteristic that makes SS signals difficult to detect intercept and demodulate SS signals are hard to detect on narrowband equipment because the signal s energy spreads over a much wider bandwidth Further SS signals are harder to jam interfere with than narrowband signals and have a much lower probability of being intercepted which is why militaries have used...

Страница 12: ...e a total of 256 System ID values If FHSS technology Channel Number and System ID are still not enough to secure your data the CL4490 also supports the Data Encryption Standard DES which is the third level of security Encryption is the process of encoding an information bit stream to secure the data content The algorithm described in this standard specifies both encrypting and decrypting operation...

Страница 13: ... available 4490 features can be found in the AC4490 Embedded Module User Manual To program the CL4490 follow these steps 1 Start the Laird Configuration Utility Click here to download 2 Connect a CL4490 unit to the serial communications port on the PC Refer to the Serial Interface section 3 Attach the antenna to the CL4490 unit make sure connection is secure 4 Connect the power supply to the CL449...

Страница 14: ... radio it is set to Broadcast mode and transmits to all in range clients with the same System ID and RF Channel as the server point to multipoint For more information on settings see the Info Center in the Laird Configuration Utility or download the AC4490 Embedded Module User Manual Note The Show Defaults button can display sample Radio settings These settings do not reflect the current factory d...

Страница 15: ...e the cable drivers are properly installed If using a configurable RS485 to RS232 converter similar to the B B Electronics 4WSD9R ensure the settings meet the manufacturer s specs If connecting a CL4490 200 USB radio make sure proper drivers were installed with the Configuration Utility SW If running Windows 7 OS you need additional USB drivers that can be downloaded by clicking here If any other ...

Страница 16: ...ding Port1 2 Settings section on the PC Settings tab CTS reports High If CL4490 is a RS485 unit disregard CTS and set Handshaking in the appropriate Port1 2 Settings section to NONE If CL4490 is a RS232 unit check try the following If unable to read unit set Handshaking in the appropriate Port1 2 Settings section to NONE then try reading the radio again Check the status of RTS if Low then it is po...

Страница 17: ...is not using flow control and the 256 byte serial buffer in the CL4490 fills up additional serial data from the host is lost and never transmitted If buffer overflow is a concern issue you may resolve it by switching to the CL4490 PRO with a 1600 byte serial I O buffer Analyze range and obstacles between the radios Switching to a higher gain antenna or raising the antenna height can increase link ...

Страница 18: ... 4 Connect the radio s external serial port to the PC via a straight through cable 5 Power on the radio 6 On the PC Settings tab click Find Ports 7 Select the appropriate port from the drop down menu 8 Set the rest of the settings to the following Baud Rate 9600 Parity None Handshaking Hardware Data Bits 8 Stop Bits 1 9 Under Options ensure the Read Write with AT Commands checkbox is selected 10 E...

Страница 19: ...reless uses frequency hopping protocol with a fixed pseudo random hopping sequence on our transceivers This protocol yields superior interference rejection and multipath immunity The server radio sends timing beacons out on a regular interval and the clients hear these beacons and synchronize their frequency hopping to the server Though servers cannot send packets to each other they can hear the t...

Страница 20: ...d are outside of the range of the Hop Master server set their Sync Channel to the RF Channel Number of a server with a lower RF Channel Number than its own that is in range of and synchronized to the Hop Master server Note All servers with Sync to Channel enabled depend on the server designated as Hop Master If the Hop Master is not powered on and in range the Sync to Channel servers will not sync...

Страница 21: ...0 Americas 1 800 492 2320 Option 2 Europe 44 1628 858 940 Hong Kong 852 2923 0610 www lairdtech com ramp 21 Laird Technologies Figure 7 Two servers without Sync to Channel enabled Figure 8 Two servers with Sync to Channel enabled ...

Страница 22: ...o the PC Settings tab at the top of the window 2 RF Options mentioned in this procedure require that the Show All Options box is selected in the Security Pane on the PC Settings tab of the Configuration Utility To enable the Security Pane follow these directions a From the PC Settings tab click About b In the About window click anywhere next to the lines of text A blinking cursor displays c Type t...

Страница 23: ...tailed information on how to enable the security pane see the Laird Configuration Utility User Manual 3 Select the appropriate product from the Product drop down menu Connex4490 4 Select the COM Port that is connected to your radio If you are unsure press the Find Ports button and the drop down list populates with available COM ports 5 Select the baud rate that matches the baud rate that the radio...

Страница 24: ...CL4490 User Guide Version 3 0 Americas 1 800 492 2320 Option 2 Europe 44 1628 858 940 Hong Kong 852 2923 0610 www lairdtech com ramp 24 Laird Technologies Figure 9 PC Settings tab ...

Страница 25: ...40 Hong Kong 852 2923 0610 www lairdtech com ramp 25 Laird Technologies 7 Go to the Configure tab and click the Read Radio button at the bottom right of the screen A message stating Read Successful should appear after a successful read Figure 10 Figure 10 Configure tab Read Successful ...

Страница 26: ... select Server and Broadcast Mode Make note of the RF Channel Number Figure 11 Once the appropriate changes have been made click Write Radio A Write Successful prompt appears after a successful write Note that the values are shown using hexadecimal representation you may change this to decimal notation by double clicking on the word Hex it changes to Dec Figure 11 Hop Master settings ...

Страница 27: ... 940 Hong Kong 852 2923 0610 www lairdtech com ramp 27 Laird Technologies 9 Configure all radios that will communicate with the Hop Master server as Client and Auto Destination with the same RF Channel Number as the Hop Master server Then click Write Radio Figure 12 Client settings ...

Страница 28: ...er 2 as Server and Broadcast Mode with an RF Channel Number at least 4 5 steps above the RF Channel Number of the Hop Master Under the Radio Features section check the Sync to Channel box and in the Radio RF section set the Sync to Channel to the RF channel of the Hop Master Figure 13 Click Write Radio to write the changes to the radio s EEPROM Figure 13 Server 2 settings ...

Страница 29: ...rver set its Sync to Channel to the RF Channel Number of another synchronized server that is in range of the Hop Master make sure the RF Channel Number of the server is higher than the Sync to Channel 13 Repeat Step 12 for all clients that you wish to communicate with each server from Step 12 I ve configured my radios what s next Once you have configured all radios set up your network similarly to...

Страница 30: ...r Guide Version 3 0 Americas 1 800 492 2320 Option 2 Europe 44 1628 858 940 Hong Kong 852 2923 0610 www lairdtech com ramp 30 Laird Technologies Figure 15 Sample Centralized Sync to Channel Network configuration ...

Страница 31: ...r Guide Version 3 0 Americas 1 800 492 2320 Option 2 Europe 44 1628 858 940 Hong Kong 852 2923 0610 www lairdtech com ramp 31 Laird Technologies Figure 16 Sample Daisy Chain Sync to Channel Network configuration ...

Страница 32: ...nical documents are also available from the RAMP page under the Product Information tab in the row labelled ConnexLink Wireless Cable Replacement System ConnexLink Product Brief CL4490 Hardware Integration Guide Statement of Compliance to EU WEEE Directive and RoHS Directive ConnexLink Product Line The following downloads are also available from the RAMP Product Information tab Laird Configuration...

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