Omron manual DDAA1000/SRM User Guide RF Xmit Power, Power Transmit Settings, Remote Security

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DDAA1000/SRM User Guide

(5) RF Xmit Power

The DDAA1000/SRM offers users the ability to modify the Transmission Power of the radio modem. There are 10 power settings available (1-10) which are roughly linear. Therefore a setting of 10 is full power (or 1 Watt) and 1 is 10% power (or 100 mw). The following guidelines should be followed when setting the RF Transmission Power:

Table 6: Power Transmit Settings

Setting

Power Level

Used When

 

 

 

1-3

Low

Pair of pairs of radio modems operating within the

same or adjoning rooms.

 

 

 

 

 

4-6

Medium

More than one pair of radio modems operating

withi the same facility.

 

 

 

 

 

7-10

Full

Normal operation extending beyond a facility.

 

 

 

(6) Remote Security

With option 6 the user may disable the radio modem’s security so it will accept a call from any other DDAA1000/SRM. The default setting is 0 where security is enforced (the caller’s call book number must be in the remote’s Call Book). With a setting of 1 security is disabled.

As mentioned in mode 6, Remote Security must be set to 1 when the unit is operating in a point-to-point system where it may need to accept calls from more than 10 different DDAA1000/SRMs. However, it is important to note that when Remote Security is set to 1, the radio modem will accept calls from any other DDAA1000/SRM, and additional system security measures should be taken to prevent unauthorized access.

(7)RTS to CTS

For DDAA1000/DD1000 use the user should not change this parameter. Leave it disabled (0).

(8)Retry Time Out

The Retry Time Out parameter allows the use to determine when a remote will drop a connection to a master or repeater in multi-point mode. The default setting is 255, meaning that if one packet in 255 from the master is sent successfully to the remote, it will maintain a link. The lowest setting is 8, at which a remote will drop a connection much faster.

The Retry Time Out parameter is useful when a multi-point system is used with a moving master or remotes. As the link gets weaker, a lower setting will allow a remote to drop it’s link and search for a stronger connection.

While intended primarily for multi-point systems, the Retry Time Out parameter may also be modified in point-to-point systems. In point-to-point mode the Retry Time Out should not be set to a value of less than 151.

PN 161-09981-002C

rev 8/04

DATA-LINC GROUP

31

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Contents DDAA1000/SRM Product User Guide FCC NotificationTable of Contents DATA-LINC Group DDAA1000 and DD1000 IntroductionPower Connector Antenna Connectoin TypeTeminal Block Connections Discrete OperationMaster Remote Point-to-Point Discrete OperationMaster Point-to-Multipoint Discrete OperationAnalog Operation Supply loop powerPoint-to-Point Analog System Needed. The DDAA1000 unites do notMaster or Remote Connection of a flow meter to the DDAA1000/SRM unitPoint-to-Multipoint Analog System Factory Configuration ProcessPoint-to-Multipoint Analog Example Remote Point-to-Multipoint Analog OperationLayout Drawing Changing System or Radio ConfigurationsTechnical Specifications Troubleshooting Return Material Authorization Product WarrantyTechnical Support Contact InformationTOP Appendix aAppendix B DDAA1000 DD1000 ConfigurationDATA-LINC Group Ddaa Eeprom MENU** *SET Caplck DATA-LINC Group Terminal Settings Appendix C Radio ConfigurationMain Menu Point-to-point Master Main Menu Option 0 Set Operation ModePoint-to-Point Remote Point-to-Multi-Point MasterDDAA1000/SRM User Guide Point-to-Point Remote/Repeater Point-to-Point Remote/Master SwitchablePoint-to-Point Repeater Point-to-Multi-Point RepeaterMain Menu Option 1 Set Baud Rate Available data word length and parity selectionsModBus RTU Call Book Menu Main Menu Option 2 Edit Call BookEntry Number Repeater 000-0000 Edit Call Book in Multi-Point SystemsMain Menu Option 3 Edit Radio Transmission Characteristics FreqKeyMax Packet Size and 2 Min Packet Size Selections Maximum Packet Size Settings where RF Data Rate=3 DDAA1000/SRM User Guide Minimum Packet Size Settings bytesRF Data Rate Xmit RatePower Transmit Settings DDAA1000/SRM User Guide RF Xmit PowerRemote Security RTS to CTSDDAA1000/SRM User Guide Lowpower Mode High NoiseMCU speed Main Menu Option 4 Show Radio Statistics Average Signal LevelAverage Noise Level Overall Rcv Rate %Radio Temperature DDAA1000/SRM User Guide Number of DisconnectsMulti-Point Operation Multi-Point Parameters Main Menu Option 5 Edit Multi-Point ParametersRemote/Repeater DiagnosticsSubNet ID Radio IDMain Menu Option 8 Password Disabling Password Changing a PasswordDDAA1000/SRM and DD1000/SRM Placement Locations
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