Nortel Networks RTU-292 Password Protection, Inactivity Disconnect Timer, Calling Timer

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RTU-292 Operations Manual

3.7.7RTU-292 PASSWORD PROTECTION

The password protection feature is enabled by a dipswitch setting (SW1-5, see Table 2-1). When passwords are enabled, access to the system is denied unless a user enters the correct password. The same password applies both to access via telephone and via a radio (if the DTMF Radio Access feature is used). Users are given three tries to correctly enter the system password before the RTU-292 terminates the call attempt and returns to its waiting state.

The system assists the user in entering the password by the use of Voice and Tone Prompts (if the Voice Prompt Option is installed), or simply with Tone Prompts.

The factory default password is “1 2 3 4”, and this password can be changed to any DTMF or numerical value up to 10 characters in length. To change the password, first enter the programming mode by entering ‘* 9 9”. If passwords are currently enabled, it will be necessary to enter the correct password to continue programming. From the programming mode, enter “* 1 x x x #” where “x x x” is the new password, up to 10 characters long. Next enter “* #” to leave the programming mode.

3.7.8 INACTIVITY DISCONNECT TIMER

The inactivity disconnect timer ensures that the system does not remain locked up on a completed call if system users forget to or are unable to terminate a call by normal means. The inactivity timer samples audio from both the radio and the telephone. If no activity is detected for a time equal to the Inactivity Disconnect Timer setting, the RTU-292 will notify the users by three short beeps that they have five seconds to respond or the call will be terminated. If either the radio user or the PSTN caller initiates activity within 5 seconds of the warning beeps, the timer is reset.

Inactivity Disconnect Timer lengths of 2 minutes to 120 minutes (or disabled) are available. Enter “* 9 9” to enter the programming mode, then “* 2 x” to set the timer. The value of x sets the timer length. See Table 3-2 for the list of timer durations. The value of x = 0 will disable the timer so that the connection may be maintained indefinitely. Unless a permanent connection is required, disabling the timer is not recommended. If the telephone caller does not correctly terminate the call, the unit can become locked up in the connected state. Once the desired timer length is set, enter “* #” to leave the programming mode.

3.7.9 CALLING TIMER

The Calling Timer determines how long the RTU-292 will attempt to place a telephone call. Once the timer expires, the RTU-292 terminates the attempt. Note that if the unit detects a busy signal or other feedback that indicates that the call cannot be placed, the attempt will be immediately terminated.

Two Calling Timer lengths, either 30 seconds or 1 minute, are available. Enter “* 9 9” to enter the programming mode, then “* 3 x” to set the timer. The value of x sets the Calling Timer duration. “* 3 0” sets the Calling Timer to the factory default length of 30 seconds. “* 3 1” sets the timer to 1 minute. Once the desired timer length is set, enter “* #” to leave the programming mode.

JPS Communications, Inc.

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Contents JPS Communications, Inc JPS P/N Revision JulyProprietary Statement Phone 919 Fax 919Table of Contents RTU-292 Theory of Operation Front Panel Buttons and Indicators Schematic Diagrams List Of Figures List of Tables Glossary This page intentionally left blank Scope Description GeneralTelephone Interface AssembliesMain Board Power Supply Section Handset/Speaker InterfaceRadio Interface DSP ModuleEquipment and Accessories Supplied Qty Part NumberOptions Optional Equipment Not SuppliedRTU-292 Specifications Reshipment of Equipment GeneralUnpacking and Inspection FCC Part 68 Regulations Installation OverviewInstallation Considerations 1RTU-292 Factory Default Settings Feature / Function Adjustment Default SettingPower Requirements Input Power SelectionDC Input Power Selection Line Voltage SelectionSetting Telephone Send and Receive Levels Configuring the RTU-292Programming Mode Setup Parameters Recommended Phone Line Settings Factory default settings are indicated by an asteriskType of System Telephone Send/Receive LevelsVOX Hangtime VOX HangtimeVOX Sensitivity VOX SensitivityDial Mode Dial ModeTelephone Ring Volume RX Line Input ImpedanceRadio Control Mode SW1-3 Radio Control Off Disabled EnabledFull/Half Duplex SW2-8 Full/Half Duplex Off Full DuplexPassword Protection 10Password Protection11Voice Prompts Enable Voice Prompts12Local Phone Enable 14TX Level Set-up ModeInterconnect Information 13 Local Phone RingthroughTelephone Connection 15J1 TEL Line RJ-11CPin Function Radio Connection17J7 Handset RJ12C Jack Handset Connector16P1-RADIO DB-9 Male Terminal Block 18Terminal Block 6 PositionAudio Level Setup and Adjustments 19P2 RS-232 Connector DB-9 MaleSetting the Transmit Level 5 RS-232 ConnectionSetting the Receive Level 10.1.2RTU-292 Operations Manual Outline Dimensions Control and Connector Locations Location Of Internal Option Settings Internal Option Setting Details Audio Interface Wiring Diagram Interface Details Installation Checklist Installation ChecklistOptions Installation and Configuration Front Panel CONTROLS, Indicators and Connectors Speaker Volume Control Phones Volume ControlKeypad TEL Line ButtonsSpeaker Buttons Auto ANS ButtonAudible Ring Button KEY PushbuttonRear Panel Connectors 1 P1 Radio Connector4 J2 Local Phone Connector 7 P1 AC Power ConnectorOperation Operation OverviewUSE of the RTU-292 Speaker to Monitor Audio Placing a Telephone CallUsing the Handset with the Radio Connecting the Radio to the Telephone LineReceiving a Telephone Call Putting a Telephone Call on Hold8.2 Manual Phone Patch Procedure8.1 8.3 8.48.5 8.6Negative Acknowledge Error Remote KEYSelf Test Automated OperationDisconnecting Disconnect Waiting For Input QueryRadio Is Keyed Keyed Radio Is Unkeyed UnkeyedRTU-292 Adapts To The Phone Line Caller Enters The Password if enabledCaller Dials The RTU-292 Terminating a Call RTU-292 Enters the Command ModePlacing a Call in the Command Mode Dtmf Control Commands Operating the RTU-292 from the Front Panel Keypad1Standard Dtmf Operational Commands Dtmf Command Function2Programming Mode Dtmf Commands Calling Timer RTU-292 Password ProtectionInactivity Disconnect Timer Programming the Speed Dial Directory Using the RTU-292 Speed Dial FeatureUsing the Speed Dial Feature Optional 4 Wire Operation Factory ResetSpeed Dial Reset Audio BUS Arrangement Front Panel Buttons and IndicatorsMain Board Telephone Receive Circuits Telephone Interface CircuitsTelephone Send Circuits Ring Detector and Tone Ringer Radio Interface CircuitsReceiver Input Amplifier Transmitter Audio OutputDtmf Detector FSK ModemMicrophone Circuit Speaker and Headphone CircuitsAudio Delay Adaptive HybridNoise Generator Peak DetectorPower Supply AC Power SupplyDC Power Supply 8 CPUOption Interface Board Voice Prompt OptionPrompt Tone Generator Speech ProcessorLocal Phone Option Voice Prompt SoftwareInterface Circuitry DIAL/BUSY GeneratorsRS-232 Remote Control Overview Commands Sent to the RTU-2921Command Summary Audible Ring Command Null CommandAuto Answer Command Date Command Dial CommandDisconnect Command Dtmf CommandHandset Phone Command Handset Radio CommandSpeaker Phone Command Speaker Radio CommandSpeed Dial Command SD nnALL num.? CRTel-Line Phone Command Tel-Line Radio CommandTime Command Software Version CommandStatus Returned from the RTU-292 Response SummaryCall Starting Response Null ResponseAuto Answer Response Dtmf Response Dial ResponseDisconnect Response Handset Radio Response Elapsed Time ResponseHandset Phone Response Speaker Phone Response Speaker Radio ResponseTel-Line Radio Response Speed Dial ResponseTel-Line Phone Response Time/Date Response Version ResponseResponse Error Codes Response Error CodesCall Progress Responses from the RTU-292 Call Progress ResponsesPreventive Maintenance Repair or ReplacementPerformance Testing AlignmentHybrid Balance Measurement Hybrid Balance Test Set-Up Main Hybrid Test Procedure Alternate Hybrid Test Procedure VOX Sensitivity Test Set-Up VOX Test Procedure VOX Sensitivity MeasurementFault Analysis Replaceable Parts List DescriptionDescription Reference Designator RTU-292 Operations Manual Reference Designator Special Software Versions RTU-292 OptionsInstallation and Configuration Voice Prompts EnableSW1-6 Voice Prompts Off Disabled Enabled OperationVoice Prompt Option Installation Local Phone Option Installation and Configuration Local Phone EnableSW1-7 Local Phone Off Disabled Enabled SW1-8 Ringthrough Off Disabled Enabled5Local Phone Dtmf Commands Local Phone Option OperationVMM-100 Analog Interface VMM-100 HardwareVMM-100 DSP Section VMM-100 Installation and Configuration VMM-100 SoftwareVMR Algorithm Noise Reduction AlgorithmVMM-100 Option Installation VMM-100 Specifications EnvironmentalVMM-100 I/O Connector Information P9 VMM-100 Switch FunctionsDtmf Access Option After the Call Begins Squelch Break Access Option RTU-292 Prompts for ConfirmationSetting The Time Setting The DateCall Logging Option Checking The Time And DateRadio Control Option Controlling the Radio VIA the RTU-292 Front Panel Keypad9DTMF Radio Control Commands Command Followed By Command DescriptionSchematic Diagrams Blank Index Environmental Self Test Speech Processor
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