B08_ATCH_1_SALIENTS_S22096.pdf

Salient Characteristics Special Order S22096

ALERT TRANSMITTER SYSTEM

8 ea. ALERT Transmitter System:

System Requirements

1. Shall consist of a flood warning system including a data logger, an ALERT2 (Automated Local

Evaluation in Real Time) encoder, and a UHF radio transceiver.

2. All components shall be configured for mounting on a panel or backplate.

Data Logger Requirements:

3. Shall be a measurement and control datalogger.

4. Shall have operating temperature range from -40° to +70°C.

5. Shall have at least six (6) single-ended, or three (3) differential (individually) configured analog inputs.

6. Shall have at least four (4) pulse counter inputs.

7. Shall include SDI-12 and RS-232 communications.

8. Shall have USB and RS-232 communications ports.

9. Shall have at least one (1) Switched 12 Volt terminal.

10. Shall have configurable terminals for digital input and output including status high/low, pulse width modulation, external interrupt, and communication functions.

11. Shall have a USB (Micro B) port.

12. Shall be capable of operating from 12 VDC (nominal) power.

13. Shall have 3-year warranty against defects in materials and workmanship.

14. Shall have at least 80 MB serial flash for CPU drive/programs.

15. Shall have at least 30 MB serial flash for data storage.

16. Shall communicate using PakBus, Modbus, DNP3, TCP, UDP, and other standard protocols.

17. Shall have real-time clock accuracy of ±1 min. per month, or better.

18. Shall support Ethernet, PPP, RNDIS, ICMP/Ping, Auto-IP(APIPA), IPv4, IPv6, UDP, TCP, TLS, DNS, DHCP, SLAAC, NTP, Telnet, HTTP(S), FTP(S), SMTP/TLS, and POP3/TLS internet protocols.

19. Shall be compact and no larger than 6” x 3” x 2”.

ALERT Encoder Requirements:

20. Shall be compatible with the data logger and radio transceiver described herein,

21. Shall consist of an ALERT2 encoder and modulator that supports ALERT2 and ALERT-concentration services.

22. Shall comply with ALERT2 standards maintained by the National Hydrologic Warning Council

(NHWC) and ALERT Users Group (ALG).

23. Shall be capable of operating from 12 Vdc (nominal) power.

24. Shall have tipping bucket, single-ended analog, digital, and switched power inputs/channels.

25. Shall have a USB (Micro B) port.

26. Shall have at least 1 RS-232 port for user interface or external devices.

27. Shall have switch closure, single-ended analog, SDI-12 (limited), and switched 12V channels.

28. Shall be RoHS and CE compliant.

29. Shall have a SMA GPS antenna connector.

30. Shall have LED indicators for GPS, serial, and radio communication status.

31. Shall include features to allow testing of transmission, radio power, and alignment.

32. Shall have an operating temperature range of at least -40 to 60 degrees C.

Salient Characteristics Special Order S22096

33. Shall be compact and no larger than 6.5” x 3” x 2”.

UHF Radio Transceiver Requirements:

34. Shall be compatible with the data logger and encoder described above.

35. Shall be a narrowband UHF radio transceiver for long-distance communications.

36. Shall have a frequency range of 400.5 to 416.5 MHz and be programmed to operate at 406.125 MHz.

37. Shall include an LED visual indicator of transceiver operational status.

38. Shall have channel spacing of 12.5 kHz.

39. Shall have a frequency stability of +/- 1.5 PPM, or better.

40. RF channels shall consist of 8 independent Tx/Rx frequencies.

41. Shall include BNC female bulkhead antenna connector.

42. Shall have a 15-pin female sub-D connector for signal, control, and power functionality.

43. Shall be capable of operating from 12 VDC (nominal) power source.

44. Shall be compact and no larger than 6” x 3” x 2”.