Stevens 80060-70A1 User Manual Download

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5.4 What is RSSI and how do I interpret the number?

The RSSI (Received Signal Strength Indicator) is displayed as a number from 0 to 31, which is proportional
to a radio signal level at the receiver of -51 to -113 dBm (the negative numbers are typical levels in dBm at
a receiver).

The chart below can be used to interpret the RSSI for troubleshooting purposes.

CDMA

GSM

RSSI

Quality

RSSI

Quality

22-31

Excellent

25-31

Excellent

13-21

Good

19-24

Good

8-12

15-18

4-7

Marginal

3-14

Marginal

0-3

Bad

0-2

Bad

Very Bad

Summary of Contents for 80060-70A1

Page 1: ...ALL IN ONE SENSORS TO CLOUD CELLULAR GATEWAY User Manual Stevens Part 80060 70A1 GSM Stevens Part 80060 70B1 Verizon Manual Version 1 1 ...

Page 2: ... 3 Antenna Connection 8 3 4 SD Card 9 3 5A Data Backup 9 3 5B destin txt for destination and GSM configuration 10 3 6 LED Indicators 11 4 CONFIGURATION PROCESS OF Avo via STEVENS CONNECT 11 4 1 Downloading Configuration to Avo 11 5 0 TROUBLESHOOTING 12 5 1 Using DIAGNOST log file 12 5 2 What if Avo works during the day but not at night 12 5 3 What do I do if there is poor coverage from the cell to...

Page 3: ...hnology and communications infrastructure under one interface experience This is a shift from isolated configuration programming logging and control of hardware to a centralized cloud based platform process Avo buffers sensor data ensuring reliability during periods of cellular service interruption Advanced low power modes allow Avo to idle with minimal current draw for use with low power solar sy...

Page 4: ...4 1 3 Multiplexer box for 3 sensor inputs This box can be ordered in different configurations for different types of sensors SDI 12 pulse analog ...

Page 5: ...el Logging 1 second to 12 hours SDI 12 Channel 10 SDI 12 sensors up to 9 parameters per sensor SDI 12 sensor power 12V Switched or Continuous Logging 10 seconds to 12 hours sensor dependent Reporting interval 2 minutes to 12 hours sensor dependent Ports SD Flash Card FAT 32 Data backup HTTP destination setup APN setup if using GSM network Cell connection diagnosis Firmware upgradable 12 pin M 12 c...

Page 6: ... multiplex box 1 port ea SDI 12 4 20mA pulse 1 ft long 80060 722 1 3 sensor multiplex box custom configuration 80060 721 1 2 SDI 12 sensor splitter 2 SDI 12 inputs 80060 725 Smart PT cable vent tube desiccant 1 ft long 80060 730 Sensor cable flying leads 1ft long Table 1 Part numbers Accessories Options 3 PHYSICAL CONNECTIONS TO Avo 3 1 Sensor Connections To connect a sensor to Avo it is first nec...

Page 7: ...Number Function Pin Number Function 1 SENSOR POWER 7 SDI 12 DATA 2 PULSE 1 8 12V Constant 3 No Connect 9 12V Switched 4 Analog 3 10 PULSE 2 5 Analog 2 11 GND 6 Analog 1 12 GND Table 3 SENSORS IN Connector Pinout If 4 20mA sensors are used with Avo then the appropriate DIP switch must be set to ON for 4 20mA current type sensor The switch is located on the top of the battery board To access remove ...

Page 8: ... ON after installing your Avo To access the power switch remove all 4 screws from the Avo lid and carefully remove the lid For shipping or storage always switch the power off M12 4 Pin Power Connector Pinout Pin Number Function 1 Power In 12V 24V 2 No Connect 3 No Connect 4 GND Table 4 Power Connector Pinout 3 3 Antenna Connection Avo is supplied with a small internal cellular antenna An optional ...

Page 9: ...new logged data every 5 minutes The format of the file is ASCII and the extension is DAT The filename will be the date when the data backup began For example if Avo begins transmitting on Oct 10 2015 then the file name will be 20151010 dat Avo appends this file for one month At the beginning of each month a new backup data file is created that will include all sensor measurement taken for the mont...

Page 10: ...via a SD Card to USB adapter Then open the file under the drive indicated for that SD Card on the computer If a different cellular carrier is used be sure to only make changes to the APN information This APN is given by your cellular service provider For CDMA cellular communications there is no APN Instead Avo is pre configured with the mobile equipment identifier MEID to direct the data to Steven...

Page 11: ...orrect and properly inserted in the Avo SD Card slot Connect to Stevens Connect and configure the Station page with the Avo s SUI number After these steps each time Avo is powered on and each time it performs a scheduled transmission Avo compares its internal configuration to the one online Any updates to the on line configurations that have been saved under Stevens Connect will be automatically s...

Page 12: ...ensor Setup https support stevens connect com Avo setup Avo pulse sensor setup Low Power Mode https support stevens connect com Avo setup Avo low power mode 5 0 TROUBLESHOOTING 5 1 Using DIAGNOST log file On the SD Card there is a file titled DIAGNOST log The purpose of this file is to help troubleshoot the connection of Avo to the cellular network This file is appended upon each power up The cont...

Page 13: ...radio signal level at the receiver of 51 to 113 dBm the negative numbers are typical levels in dBm at a receiver The chart below can be used to interpret the RSSI for troubleshooting purposes CDMA GSM RSSI Quality RSSI Quality 22 31 Excellent 25 31 Excellent 13 21 Good 19 24 Good 8 12 OK 15 18 OK 4 7 Marginal 3 14 Marginal 0 3 Bad 0 2 Bad 99 Very Bad 99 Very Bad ...

Page 14: ...ock it in place 5 Ensure the SD card destin txt file has the correct APN for the SIM card carrier Recall in section 3 4 that the file on the SD card needs to be updated in the event of a change of destination or if the SIM card has changed For example Domain data stevens connect com Folders incoming Port 80 APN aer aerisapn net Username Password In the case of changing a SIM card the APN line will...

Page 15: ...t but not all please include both the model and the serial number of the product Your rights and remedies are limited to those sent out in this warranty Stevens Water Monitoring Systems Inc disclaims all implied warranties including the warranties of merchantability and fitness for a particular purpose This warranty does not cover damage due to improper installation or use lightning negligence acc...

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