REDWING DIGITAL CELLULAR MODEM INSTRUCTION MANUAL REVISION: 1/03 COPYRIGHT (c) 2001-2003 CAMPBELL SCIENTIFIC, INC.
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Warranty and Assistance The REDWING DIGITAL CELLULAR MODEM is warranted by CAMPBELL SCIENTIFIC, INC. to be free from defects in materials and workmanship under normal use and service for twelve (12) months from date of shipment unless specified otherwise. Batteries have no warranty. CAMPBELL SCIENTIFIC, INC.'s obligation under this warranty is limited to repairing or replacing (at CAMPBELL SCIENTIFIC, INC.'s option) defective products.
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Redwing Digital Cellular Modem 1. Introduction The Redwing is a full-duplex modem, manufactured by AirLink. It supports telecommunications via a cellular digital packet data (CDPD) network. CDPD modems are IP based, requiring an internet address assigned by your service provider. A PC with Internet access runs LoggerNet or PC208W software to retrieve data. There must be a CDPD network with coverage at the datalogger site. A coverage map is provided at www.attwireless.com/business/data.
Redwing Digital Cellular Modem modem’s features and the software used to configure the modem. This manual gives the specific modem configuration and the field installation for use with a Campbell Scientific datalogger. 3. Configuration Section 2 of the AirLink manual describes getting the required information from your CDPD service provider, installing the software and configuring the modem. The easiest way to set the configuration for a Campbell Scientific datalogger is to use a template file.
Redwing Digital Cellular Modem In the “Open” dialog box, select the template file that you downloaded. After selecting the file, the values from the template file will appear in the New Value column in the configuration listing.
Redwing Digital Cellular Modem Check that the side preference is correct (step 11 in Airlink manual). To complete the configuration, proceed to step 14 in the AirLink manual (Set IP Address). 4. Power Considerations If the installation’s power supply has a battery charger connected to reliable AC power, the Redwing can be left on continuously, allowing the station to be called at any time.
Redwing Digital Cellular Modem NOTES: Model PS12LA BP12 BP24 Charging Source/ Notes Battery 1 7 Ahr 1,2 12 Ahr 1,2,3 24 Ahr Approximate Operating days 4 7 15 1. 10 watt solar panel recommended as charging source in remote applications, model MSX10 2. 12VDC regulator, model CH12R 3. Larger enclosure required, model ENC 16/18 To preserve battery life in solar powered systems, the battery Amp-hour capacity used to calculate reserve capacity should be multiplied by 0.5 (i.e.
Redwing Digital Cellular Modem 14453 14454 2 dB ½ Wave Dipole Whip Cellular Antenna 8 dB Yagi Cellular Antenna with 10' Cable The 10530 antenna sold with the COM100 analog cellular phone can also be used with the Redwing when upgrading from analog cellular to CDPD. An RF adapter connector is required to connect the TNC female connector on the Redwing to the mini UHF male connector on the 10530 cable (e.g., Radio Shack Part No. 278-148). • Power Supply.
Redwing Digital Cellular Modem 6. Programming to Switch Transceiver Power Switching power to the transceiver allows the datalogger to maintain a lower power budget by limiting communication to predetermined times. The transceiver must be switched on before it can answer a call. This section provides examples of datalogger programming to switch power. If the power supply is sufficient to power the cellular transceiver continuously without switching, no special programming is necessary.
Redwing Digital Cellular Modem To allow contacting the station throughout the day, the transceiver can be turned on for the first 10 minutes of each hour: ;{CR10X} ; *Table 1 Program 01: 10.0 Execution Interval (seconds) 01: If time is (P92) 1: 0 Minutes (Seconds --) into a 2: 60 Interval (same units as above) 3: 41 Set Port 1 High 02: If time is (P92) 1: 10 Minutes (Seconds --) into a 2: 60 Interval (same units as above) 3: 51 Set Port 1 Low *Table 2 Program 02: 0.
Redwing Digital Cellular Modem Another option is to power the transceiver for the first 15 minutes of each hour. ;{CR10X} ; *Table 1 Program 01: 10 Execution Interval (seconds) 1: If time is (P92) 1: 0 Minutes (Seconds --) into a 2: 60 Interval (same units as above) 3: 41 Set Port 1 High 2: If time is (P92) 1: 15 Minutes (Seconds --) into a 2: 60 Interval (same units as above) 3: 51 Set Port 1 Low *Table 2 Program 02: 0.
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Appendix A.
Appendix A. Configuration for use with CSI Dataloggers This is a blank page.
