User Manual for the
Contents
1. to the AC power adapter If the unit is not in use disconnect the back up battery Hints Some programming has pauses from time to time that may last for 30 seconds or more especially if you are broadcasting Sunday morning church services Experience has taught that 45 60 seconds or more is the best selection if you don t want to receive false alarms Also take time in setting the input levels Wait and watch the green indicator LED through different types of programming or selections of music and speech to assure that the sensitivity is set correctly Specifications e Audio Input Impedance 10K ohms minimum single ended e Audio Input Level 30 to 10 dbm input adjustable e Silence Detect Time approximately 3 58 seconds or 6 210 seconds user adjustable and dependent on the time out range selected Factory default setting is the 4 min max timeout range e Activation input N O Contact closure or logic low 5VDC pull up voltage is internally supplied between CKT 1 and 2 inputs and common screw terminals e Output DTMF supplied by an RJ11 connector and cable e Programming PC serial connection using HyperTerminal application program supplied with Microsoft Windows or equivalent communications program M F Serial cable supplied e Power Requirements Power adapter 115 VAC to 9 12 VDC 100 500 ma 5 1 x 2 5mm coaxial connector supplied e Battery Back up Requirements 9 VDC alkaline battery NEDA 1604A Supplied e S2. If the Chaining feature has not been selected the second input Input 2 and common screw connectors may be used for any contact closure or logic low application the user desires and will activate the unit with the phone number and code programmed into the second channel of memory 7 Battery Installation to be completed after setup and programming Open the rear door on the cabinet and install the supplied alkaline 9V battery in the battery compartment The use of alkaline batteries is recommended and the battery should be changed annually Setup and programming sade sacar Connect the DB 9 cable to the computer serial port of your choice using the supplied cable 2 Disconnect any alarm inputs previously connected including the jumper wire from the SS OUT terminal to the CKT 1 terminal the telephone cable and 9V back up battery from the Pager Dialer if installed 3 Connect the AC power adapter to the power input jack of the Pager Dialer and connect the power adapter to the wall AC socket 4 Power up your computer and using Microsoft Windows On the desktop go to Start Programs Accessories Communications HyperTerminal Select HyperTerminal and enter whatever name and select an icon at the prompt that you desire to record the programming sequence for this device Click OK 5 Inthe connect to dropdown box click on Connect Using or Direct to COM 1 or COM 2 indicating whichever serial port you
3. User Guide for the Silence Sense Sr Silence Sense Detector and Pager Dialer Version R3 DM Engineering 2174 Chandler St Camarillo CA 93010 805 987 7881 www DMEngineering com Theory of Operation The Silence Sense Sr is a microprocessor based device that senses the presence of audio from a single ended input over a wide range of input levels A user adjustable input control and timeout duration control are used to set the input sensitivity and timeout duration When the audio input ceases for a predetermined user selectable period approximately 3 seconds to 1 minute maximum time out or 6 seconds to 4 minutes maximum time out jumper selectable a pre determined phone number and tone or paging sequence is transmitted over a standard telephone line If set to chain a second phone number and tone or paging sequence will be processed automatically Re application of audio automatically resets the silence sense detector If the chain feature is not used the Pager Dialer section has an additional input that may be connected by the user for any purpose of their choice A contact closure or logic low will activate this second input channel Power indication is indicated by a green LED which turns amber during dialing and paging sequences Audio presence and timeout indication is indicated by a green red bi color LED for ease of setup and monitoring the device Programming is accomplished using the HyperTerminal pro
4. are connecting to Click OK 6 In the Com Configure or Properties Port Settings window set the Bits per second to 9600 the Data bits to 8 the Parity to None the Stop bits to 1 and Flow control to None Click Apply and OK to close the Com Properties window 7 Click File Settings or Properties Click on the Settings tab then the ASCII Setup box Check Echo typed characters locally and Append line feeds to incoming line ends Check OK twice Leave any other checked boxes as they are 8 You are now in Terminal mode TURN THE CAPS LOCK ON YOUR KEYBOARD ON 9 Type D1 and then type the phone or pager number to dial for the first alert input port followed by Enter Your entries may NOT echo on the terminal screen Do not put any spaces dots or dashes or other characters in the string Valid characters are 0 through 9 and W A W will insert a 2 5 second delay between dialed characters and is considered a character in itself A maximum of 15 characters are allowed for phone numbers and 15 characters maximum for alert codes for each input 10 After entering the phone number press a down arrow key to start a new line may appear on a line and the cursor will be on a new line Now type D1 followed by Enter The terminal screen should now verify your input by displaying the phone or pager number entered If you make an error at any time just press Enter to exit the inputting string and retype the D1 or the appropriate programming c
5. gram supplied with Microsoft Windows A male female serial programming cable modular telephone cable power supply and a 9V back up battery are all provided with the unit Memory for the programmed codes is saved in non volatile e prom Battery back up is provided to assure operation when the AC power fails Connections 1 2 Audio input A single ended audio source is attached to the I O connector as marked Phone Line A standard RJ11 phone line connection is made with the supplied cable connected to the Telco jack Power input Connect the wall wart DC output connector to the coaxial power input jack on the unit Plug the wall wart into a convenient 117VAC outlet DC input is not polarity sensitive Programming input A DB9 female connector is provided for interface with a computer serial port using the supplied cable See Programming instructions Chain connector By placing the supplied shorting jumper across the 2 pins on the chaining connector the device will automatically dial both numbers and send both codes programmed into the device in the same sequence that the particular inputs were activated Activation inputs The left most input screw connector Input 1 is dedicated to the Silence Sense function but may be used for another function if desired by removing the yellow wire connected to it This will disable the Silence Sense function from activating the dialing portion of the circuit
6. iometer to the desired timeout period Fully counter clockwise is approximately 5 3 seconds mid setting is 2 minutes 30 seconds and fully clockwise is 4 minutes 1 minute You may set the control to any position desired Note that after any duration adjustment is made the audio must be applied and then removed or power must momentarily be turned off and reapplied to reset the microprocessor timing This is true any time the delay set adjustment is changed The Silence Time out indicator LED will turn red when the delay timeout has been reached When the desired timeout delay period has been set reconnect the wire jumper between SS OUR and CKT 1 inputs on the terminal block Operation and test To test the Silence Sense Sr make sure power is applied the back up battery has been installed the SS Out to the CKT 1 jumper wire is connected and audio is present at a sufficient level to light the green Audio Activity indicator LED Remove the audio input and wait for the indicator LED to show red and the power LED to switch to amber indicating dialing activation To test the battery back up operation simply disconnect the DC power The Silence Sense Sr should continue to function normally That s it the Silence Sense Sr is now ready and waiting to monitor your audio Remember that the back up battery is in use whenever the DC power connection is removed or whenever there is no AC power from the wall
7. ize 5 1 x 5 7 x 1 7 e Shipping Weight Approximately 2 lbs Warranty Information The DM Engineering Silence Sense Sr is warranted for a period of one year from the date of purchase This warranty covers materials and workmanship only Any misapplication physical or electrical damage from outside sources or by the customer is not covered For factory warranty repairs the customer must pay shipping costs to the factory and DME will pay standard ground transportation shipping costs to return the warranted equipment to the customer Any priority shipping costs are to be the responsibility of the customer as ground service is standard Please contact the factory for an RMA number prior to any returns Items returned without an RMA may be sent back to the customer unopened Technical Support If you have questions experience difficulties with the product or require further information please contact DME at 805 987 7881 toll free 800 249 0487 or E mail technical support at support dmengineering com or visit www DMEngineering com for the latest User Guide
8. nect your other alert input to circuit 2 after set up is completed SILENCE SENSE SETUP 16 The Silence Sense Sr is shipped with the multi turn audio gain control set to maximum or the fully clockwise position and the multi turn delay control to the minimum or counter clockwise position 19 turn potentiometers Do not re connect the SS OUT to CKT 1 jumper wire at this time 17 With audio present at the input adjust the gain adjust control in the counter clockwise direction until the Audio Activity green LED lights during low audio passages Depending on your programming this level may need to be readjusted for reliable audio detection later 18 The Silence Sense Sr is provided with the maximum timeout set to the 4 minute range For shorter timeout periods of less than one minute and higher resolution of the multi turn delay potentiometer an internal jumper must be reset To set the maximum timeout to the one minute range it will be necessary to open the cabinet by removing the 4 screws on the bottom side of the cabinet and carefully separate the bottom and top of the cabinet Locate the jumper on the silence detector circuit as shown in figure 1 below and move the jumper to the Left position Reassemble the cabinet being careful to not pinch any of the connecting wires in the cabinet sides Fig 1 Jumper Shown in the 4 minute maximum time out position 4 19 Adjust the multi turn Delay set potent
9. ommand followed by Enter again to reprogram This is true for any of the programming strings to follow Type P1 followed by Enter and type the code you want to use for the pager display or telephone audible For paging it is mandatory that the last 1 _ character in the P1 or P2 pager alert code be the symbol of the paging function will not work Telephone audible tones may end with any character 12 After entering the programming code press a down arrow key to start a new line may appear on a line and the cursor will be on a new line Type P1 and enter to verify the alert code you entered 13 Repeat steps 9 12 for the 2 alert input pager or telephone number and code number using D2 and P2 instead of D1 and P1 to program this input 14 Your programming setup is now complete Disconnect the Power and programming cable from the Pager Dialer and shut down HyperTerminal on your computer You will be prompted to save the session and it is advisable to do so in the event you wish to reprogram the device without having to retype all of the setup information 15 If you wish to have both programmed telephone numbers dialed sequentially if a silence period is detected place the Chain switch to the ON position There will be a 10 second pause between the completion of the first call and the beginning of the second call To have each alert input dial separately place the Chain switch to the off position and con
Download Pdf Manuals
Related Search