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Производитель: 3Com Размер: 711.84 kb Название файла: RavenII_Manual.pdf Язык инструкции:

Check Properties for "CDPD Modem PPP", select Configure and ensure the speed matches what your modem speed is set for. OR Ensure there are no other applications running that use the serial (COM) port that your AirLink modem is using. Software like HotSync (for the PalmPilot), internal modems, PC Card (PCMCIA) modems, or IR ports, may interfere. (See Adding the Modem in Windows for more information.) OR Check that the modem or cable is not loose or disconnected. No Power light Incorrect wiring for power, no power or bad power strip. Only Chan light flashing No CDPD Service in your area, or cellular (no Link light, etc.) antenna is not on, or the modem has the wrong side preference, or move the modem towards a window. (See Finding CDPD Service.) Chan light flashes, goes on The modem is trying to register on the CDPD solid, Link light comes on, network but cannot. but not Reg, then lights turn off, Chan light flashes and cycle repeats. • Check to make sure a valid IP address is entered in the Device IP Address field in the modem. • The credentials may need to be reset. Contact AirLink Tech Support who will contact your CDPD Service Provider. Modem resets (power stays on) ATZ will reset the modem. Check your app to make sure it is not sending an ATZ. Modem power cycles on/off Wrong AC adapter, or not enough power to the modem, or bad wiring. At least a 12V 300mA adapter is necessary. Page 20 AirLink Communications, Inc. User’s Manual 3. Hardware Installation This section details the hardware specs of the Raven II and mounting it with other hardware, the power requirements, mounting bracket, etc. 3.1 Mounting the Raven II The Raven II should be mounted in a position that allows easy routing and access for the cables. There should be no binding or sharp corners in the cable routes. The Raven II should be mounted so that the LEDs on the front panel can be easily seen for ease of operational verification. The snap-in mounting bracket (part number 100-170-1006) is installed using #8 or #10 screws. Press the Raven down firmly into the bracket and note that both sides have locked into the groove on the Raven II case. Figure 1 - Raven II Mounted in Mounting Bracket Note: The tie-wrap is if the modem needs to be really secure, as in a vehicle or in shipping. In stationary applications, as in a box that sits out in a pasture with a solar cell, etc., the tie-wrap is not necessary. AirLink Communications, Inc. August 9, 2001 Page 21 AirLink Raven II CDPD Modem Figure 2- Snap-in Mounting Bracket Page 22 AirLink Communications, Inc. User’s Manual Connecting the antenna Install an appropriate external cellular antenna. Connect the antenna to the external jack of the bulkhead jack adapter with an appropriate RF cable. Connect the Raven antenna jack to the interior bulkhead jack with an appropriate RF cable. Connecting the serial cable Connect the RTU/PLC meter serial port to the Raven serial port with a DB-9 male connector. Grounding the Raven Case The exterior Raven II case should be connected to the enclosure ground which should be connected to the battery or power source negative terminal. This is best accomplished with a grounding strap under one of the mounting bracket screws to the enclosure grounding bar. Connecting the power cable The power cable positive lead should be connected to the battery or power source positive terminal. The power cable negative lead should be connected to the battery or power source negative terminal. The Raven II has an internal polysilicon circuit breaker that opens at 0.5 to 1.0 amps of current. Insert the power connector into the Raven II power receptacle. Figure 3 - Raven II Back Panel AirLink Communications, Inc. August 9, 2001 Page 23 AirLink Raven II CDPD Modem RTU RAVEN BATTERYREGULATORTERMINAL BLOCKPOWER DUCT LIGHTNING ARRESTOR BATTERY (BATTERY MOUNTED ON 1/2" THICK PLYWOOD.) Figure 4 Raven mounted in an enclosure with RTU Page 24 AirLink Communications, Inc. User’s Manual COAX CABLE Lightening Arrestor (MOUNTED IN PANEL) Antenna OUTSIDE ANTENNA CABLERTU SERIAL PORT SERIAL PORT TNCCDPD Modem CABLE Figure 5 - RTU to Raven II setup TO EXTERNAL POWER SOURCE (AC/DC) POWER CONVERTER VOLTAGE REGULATOR 12 VDC 12V BATTERY RTU CDPD MODEM FUSES 1A DC + DC - + + GND GND + - Figure 6 - Power Connections AirLink Communications, Inc. August 9, 2001 Page 25 AirLink Raven II CDPD Modem 4. Additional Information 4.1 Modem Technical Specifications Novatel Wireless CDPD Modem NRM6832 Weight: < 1 lb. Integrated TCP/IP Full Duplex Size: 5.1" x 3" x 1" Transmit Power 600 mW Status LEDs: Power Transmit 824-849 MHz Channel Acquired Receive 869-894 MHz Link Status RF Protocol CDPD 1.1 Network Registration Airlink Data Rate 19.2 Kbps RSSI Serial Protocols AT Commands, PPP, SLIP Transmit/Receive RTU Protocol conversions Modbus, BSAP, DNP, Others Block Errors Power Requirements 50 Ohm TNC Input Voltage 9 VDC to 30 VDC Input 30mA to 450mA Current Serial Interface Typical Receive 50mA at 12 VDC RS-232 DB-9F Typic...

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