Micro‑Aide
Contents
1. MiicRO AIDE www micro aide com Low Power Mopems Limitep Distance MODEMS FAiLEp LED Detectors LicHt OUT DETECTORS LOAD SWITCHES LOCAL CONTROL UNITS Custom ENGINEERING LPM Low Power MODEM User MANUAL d S a 2 ae IMicRo AipE CORPORATION Tel 626 915 5502 Fax 626 331 9484 E mail support micro aide com 685 Arrow Grand Circle Covina CA 91722 LPM Low Power MODEM User MANUAL Commercially available modems are generally not suitable for use in highway applications However the LPM operates over a tem perature range extending from 40 C to 72 C Its low power design allows it to be powered by a small solar panel Introduction This document provides a detailed description of the use and operation of the MICRO AIDE Low Power Modem LPM It also provides a detailed description of the installation and use of MICRO AIDE s Modem Config Application The latter is used to create and save the profile used by the LPM Description The LPM is specifically designed for use in highway applications requiring remote access via standard telephone lines It will operate in severe temperature conditions as typically found in roadside facilities It can be powered by any source in the range from 5 to 36 Vdc It also features a low power Standby Mode A2. communications program can be used to access the LPM A check of the modem s ability to answer connect and communi cate can be performed very effectively Remote tests of the LPM can be made by MICRO AIDE technicians at the request of the user MICRO AIDE provides a limited three year warranty for the LPM Contact information is listed below MicnRo AipE CORPORATION 685 Arrow Grand Circle Covina CA 91722 Tel 626 915 5502 Fax 626 331 9484 E mail support 9 micro aide com MicnRo AiDE Set TO to 60 sec DTE data Set TO to 120 sec Set TO to 10 sec TO refers to Time Out value Figure 1 Mode Control Flow Diagram IMicRO AiDE 9EACI IPAQE G 310 OL B IB co uede pgi 9 Dumeds 612 eiq z Sununoly H3MOd MOJ waT a01y OuDIW W M07 9 9 Aqis r 9 n9V 301 48 1 L imd o3 eje4ed ui Poli syoef euoud jeng eAnoy U HO epo N gpueis ul seusel J q47 qpueis uo SABMIE epo N AH V 104 UMOG qpueis 1 mod moj 40 df uoys puey y piy Figure 2 Three Sided Dimensional View MicnRo AiDE LPM Low Power MODEM SPECIFICATIONS Physical Size Length 6 6 Width 4 8 Height 1 3 Weight 100z Environmental Storage Temperature 50 C to 85 C Humidity 0 to 95 non condensing Operating Temperature 40 C to 72 C Humidity 0 to 95 no
3. with power applied to the modem For low power applications the right hand DIP switch must always be placed in its upper position The left hand DIP switch is never used The LEDs will illuminate in accordance with the follow ing descriptions Stby flashes while modem is in low power state off while modem is active RI flashes when ringing voltage is present RD data received from the phone line SD data from the DTE and sent by the modem OH modem is off hook CD carrier from the far end modem has been de tected The current profile used by the LPM can be reviewed at any time To do so connect the communica tions port of a PC directly to the DB 25 connec tor of the LPM A communications program e g HyperTerminal or Procomm can be used to access the LPM Use the following AT command sequence to report the profile settings AT S amp The results will be grouped into five categories Additionally the ModemConfig App can be used to review the current profile Refer to the section entitled View Profile on page 10 for additional details Maintenance and Trouble Shooting The LPM is designed to be completely maintenance free It contains no consumable materials or service able components If the unit fails to power up as indicated by the Stby LED not flashing the unit should be returned to MICRO AIDE for repair The operation of the LPM can be easily tested Any PC equipped with a modem and a
4. 07 090 5010 014 5024 010 5040 000 5043 004 5051 001 5002 043 5005 006 5008 002 5012 050 5050 001 5041 000 5044 160 AT COMMAND SET EO Ul amp He n2 6 000 amp D n e AT COMMAND SET iL 50 001 ann AT COMMAND SET T 009 B 003 N 005 000 Wood 4 000 cancel MicnRo AiDE The View Profile feature will report data similar to that depicted in the previous sample screen If required enlarge the vertical dimension of the dialog box or use the vertical scroll bar to view all of the settings Click the button labeled OK to close the dialog box and return the focus to the ModemConfig App The settings shown in the previous screen reflect Peek s recommended profile for use with their ADH devices Exit Click the command labeled File Exit to close the ModemConfig App 10
5. a Baud rate is not required provided the LPM s DTE port is set to auto Baud 1116 setting Select Common AT Settings The most common settings used to create a nevv profile are listed in the upper section of the dialog box Five drop dovvn list boxes allovv the user to easily select a variety of important settings Select the entry to ignore a particular setting These settings will be sent to the LPM in top to bottom order Additional AT Settings To assign additional profile settings click in the area labeled Other AT Commands This area serves as a large text edit box It can be used to create a sequence of additional commands that are user specific An AT prefix is not required The command string that is formed by the individual commands will be sent after the common settings A space character is not required to delimit each command Care should be exercised when assigning additional commands The ModemConfig App is not able to report an error in any command string For example the command XY will fail but not be reported as an error Additionally the following fixed Baud rate com mands must not be used 15 T7 1713 T 14 and 1715 These settings will result in fixed Baud rates that are not supported by HyperTerminal and or the ModemConfig App Save the Profile The command labeled File includes the standard Windows Save and Save As sub commands They can be used to save the currentl
6. able extended result codes to DTE port MicnRo AiDE amp D2 line hangs up with drop of DTR XQO disable flow control 57 90 wait 90 seconds for carrier before hanging up S021 modem answers in two rings A complete list of AT commands used by the LPM is available from MICRO AIDE The LPM operation controlled by the preceding com mands may be appropriate for the user s intended application If not the profile will need to be changed The modem is ready for use after the correct profile is programmed and saved into the non volatile memory of the LPM Operation To operate the LPM start by making the necessary power phone line and DTE cable connections Except as noted below after power is applied to the LPM the green LED labeled Stby will start flashing immediately This indicates that Standby Mode is enabled and that the modem is in a low power state The modem is in Active Mode whenever the standby LED is off The LED will turn off when the DTE sends data or ringing voltage is detected The Standby Mode of the LPM can be disabled This option may be useful in applications where the modem is not being powered by a solar panel Disabling the Standby Mode of the LPM forces the modem into continuous Active Mode To disable Standby Mode locate the DIP switch at the front panel of the modem Throw the right hand switch to its lower position The front panel silkscreening can be used as a guide The standby LED will remain off
7. cross tip and ring A telco approved external suppressor should be used for added protection Regulatory Designed to meet applicable FCC standards Modem Standards Speed 300 to 33 6K Baud V 21 V 22 V 29 Fast Connect Data Compression V 42bis V 44 Error Correction V 42 MNP 2 5 Control Commands AT command compatibility Supports most standard Hayes commands Includes additional AT commands for control of other modem features Profile Support for one profile Defined by the sequence of various AT commands Active profile is volatile until saved to EEPROM Use MICRO AIDE s ModemConfig App to create and save the profile MICRO AIDE reserves the right to make changes at its sole discretion to any specifi cation listed herein MopEMCoNriG APPLICATION Use MICHO AIDE s ModemConfig Application to create and save a new modem profile Description The ModemConfig App is used to create and save a new modem profile It can be installed and run on any Windows XP Windows Vista or Windows 72 PC The application requires that specific library files be installed on the PC Accordingly a second executable file must also be installed Both installation proce dures are described in the following two sections The modemconfig v101 exe and qt4 runtime v470 exe files can be downloaded without charge from MICRO AIDE s website Visit V VVVV micro aide com support dovvnloads htm QT Runtime Library Installation Down
8. front panel accessible switch allows the user to select the power mode A battery charged by a solar panel provides an excellent method of powering the LPM when Standby Mode is enabled With Standby Mode enabled several timers are em ployed by the LPM The timers are used to reduce net power consumption Sixty seconds after the termina tion of ringing voltage or 120 seconds after the cessa tion of DTE data the LPM will automatically revert to low power operation Low power operation will also be invoked 10seconds after the loss of car rier The mode control sequence employed by the LPM is illustrated in Figure 1 on page 5 Baud rates up to 33 600 are sup ported by the LPM Its high speed makes the LPM ideally suited to applications where large amounts of data are transferred Industry New LPM MICRO AIDE designed its first LPM in 1995 In 2012 the LPM was once again redesigned The latest design includes all of the capabilities of the earlier ver sions but is now housed in a substan tially smaller package The new LPM design uses a Silicon Labs chip The new chip introduces a Slightly different set of AT commands standard error correction and data compression al gorithms are also supported The LPM will operate in auto answer and originate modes The LPM is housed in a rugged aluminum case It will operate over temperature ranges associated with highway equipment Front panel LEDs indicate the status of the modem at a
9. ig icon on the PC s desktop A screen similar to the following will be displayed File Help Ring Count Echo Quieb Result Codes Error Correction Other AT Commands Pork coms Send Modem Baud 38400 l View Profile Initially the ModemConfig App displays a single dialog box The dialog box shown above is used primarily to assign specific profile settings A second dialog box is used to report the profile settings currently in use Re fer to the section entitled View Profile on page 10 for additional details A description of each component included in the dialog box is provided in the following sections Help The ModemConfig App includes two commands at the top of the dialog box The Help command can be found there Click the command to launch the PC s default browser A Help file in the form of an html page can then be read Select a Comm Port Click the drop down list box labeled Port Select an appropriate port from the list e g COM5 as shown in the above ModemConfig will use this port to com municate with the LPM Select a Baud Rate Click the drop down list box labeled Baud Select the Baud rate that matches the rate presently used by the LPM For example if the LPM is currently using a fixed Baud rate of 19 200 then the 19200 setting must be selected The 38400 setting is always the MicnRo AiDE initial setting displayed by ModemConfig Selecting
10. ll times A standard DB 25 connector allows the LPM to be connected to a wide array of highway data equipment Typical applications include remote access to vehicle detectors and weigh in motion systems The LPM is designed to meet all of the requirements for a modem device intended for use with a Peek ADR Figure 2 on page 6 provides a three sided dimensioned view of the LPM More detailed informa tion is included in the section entitled Specifications on page 7 Installation The LPM is housed in a case that includes mounting ears at either side The diameter of each hole is 219 The mounting holes are 6 134 apart The modem can be se cured to any flat surface including a backboard A standard 25 pin RS 232 cable can be used to connect the LPM to the DTE device The LPM is equipped with a female connec tor configured for DCE operation The specifications page lists each of the RS 232 signals provided by the LPM MicnRo AiDE The telephone line is attached to the LPM via a standard RJ 11 connector Dual jacks are available at the rear panel of the LPM A utility phone can be used while the modem is inactive A 6 long power cable is shipped with every LPM The cable is terminated with a standard 3 5 mm plug The plug mates with the power jack also located at the rear panel of the LPM The red wire of the cable at taches to the center pin of the jack and must be con nected to the positive terminal of the p
11. load unzip and then save to an appropriate location the qt4runtime exe file Once saved double click the exe file to initiate the installation process The following screen will be displayed x Select Language I Please select the language that you would like to use during the installation TN Continue with the standard installation by clicking the button labeled Next s in each of five successive dialog boxes Click the buttons labeled Finish and OK in the final two dialog boxes to complete the QT4 MicnRo AiDE Runtime library installation Version 4 7 0 of the library is now available ModemConfig App Installation Download unzip and then save to an appropriate location the setup modemconfig v101 exe file Once saved double click the exe file to initiate the installa tion process Continue with the standard installation by clicking the button labeled Next gt in each of five successive dialog boxes The following screen will be displayed Setup Complete Setup has finished installing Modem Config on your computer Press Finish to exit setup Click the button labeled Finish Complete the instal lation by clicking the button labeled OK in the final dialog box Version 1 01 of the ModemConfig App is ready for use An icon labeled ModemConfig will be displayed on the PC s desktop Create a New Modem Profile To create a new profile start by double clicking the ModemConf
12. n condensing Mounting Shelf or desktop Construction Chassis Fully enclosed anodized aluminum externally accessible connectors LEDs and switches Electrical Single PCB with conformal coating mounted inside chassis Power Voltage DC 5 to 36 AC 10 to 15 optional AC power adapter available Consumption Standby Mode maximum 5 mA at 12 Vdc Active Mode typical 85mA at 12 Vdc MicnRo AiDE Operation Standby Mode Low power while awaiting ringing or DTE data Standby to Active Transition Delays Within 6sec of ringing or 200msec of DTE data Answer After transition to Active Mode answers call in accordance with SO register setting Disconnect Loss of carrier DTR drop or on hook com mand Active to Standby Transition Delays Active Connection 10sec after loss of carrier No Connection 60sec after last ring or 120 sec after last DTE data Controls Externally accessible DIP switch enables or disables Standby Mode Connectors Power Standard 3 5 mm jack center positive DTE Type DB 25 female configured as DCE Signals RD SD CTS RTS DSR DTR DCD RI Signal Ground Phone Dual RJ 11 wired in parallel LED Indicators Green flashes while in Standby Mode off while in Active Mode Red Qty 5 Receive Data Transmit Data Off Hook Ring In Carrier Detect DTE Interface Configured as DCE Auto Baud detection fixed Baud rate avail able Line Protection Internal MOV device used a
13. ower source The black wire must be connected to the negative terminal of the power source Alternatively the LPM can be powered by a nominal 12 Vac source A Stancor STA 4112A wall mount transformer can be used for this purpose It connects directly to any 120 Vac outlet The transformer has a rated output of 12 Vac at 500 mA Its output cable is terminated with a 3 5 mm plug Contact MICRO AIDE if the Stancor wall mount transformer is required Setup The LPM includes support for a single operating profile In some applications the factory installed profile may need to be modified Modem profiles are largely determined by the operational aspects of the DTE attached to the LPM and the call originating system The LPM supports many industry standard AT and Hayes commands However several modem characteristics are not uniformly coded by modem manufacturers MICRO AIDE s ModemConfig App must be used to create a new LPM profile The latter half of this User Manual provides a complete description of the ModemConfig App Unless otherwise requested each LPM is pro grammed prior to shipment by the following initial ization string This string will support applications involving the Peek ADR A separate command rather complex and therefore not listed is used to save the profile ATE0X0 amp D2 Q0S7 90S0 1 The six AT commands listed above allow the LPM to operate as follows EO disable echoing of commands to DTE port X0 dis
14. y listed settings as a ixt file The resultant file can be saved at any location As a ixt file it can be viewed by a variety of commonly available applications Open a Saved Profile The File command also includes the Open sub command It can be used to quickly load the Modem Config dialog box with the contents of a previously saved profile Send Profile The final step is to send the new profile to the LPM Before doing so carefully review each setting Make sure the appropriate PC port and LPM are connected via a suitable cable Click the button labeled Send to Modem The send and receive data LEDs of the LPM will flash briefly At the completion of the transmission the following dialog box will be displayed Click the button labeled OK to return to the Modem Config dialog box The LPM will now operate in ac cordance with the newly established profile View Profile The profile currently saved in the EEPROM of the LPM can be easily inspected Click the button labeled View Profile A new dialog box will be opened Its contents will display the values of 42 different profile settings This feature can be used to verify that the LPM will operate in accordance with the user s requirements 3 Modem Profile Current Profile 47 COMMAND SET 000 000 O 000 001 000 000 AT COMMAND SET 5000 001 50053 015 5006 002 5009 006 5014 012 5038 020 5042 000 59050 005 5001 000 5004 010 50
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