Patton electronic 2500 Series DSR Status During Local Loopback, Rate Converter/DTE Rate

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Note2: You can use the Model 2500 Series to transmit lower-speed asynchronous data (up to 9.6 kbps) over synchronous circuits by simple over-sampling. To do this, select the synchronous data format and set the line Line Rate (Software Switch Menu option 1) to at least four times that asynchronous data rate you wish to send. For example, use a Line Rate of 9.6 kbps or higher for 2.4 kbps async data.

DSR Status During Local Loopback

Choosing option 6 in the Software Switch Menu takes you to the DSR Loop Status Menu (below). This option controls the behavior of the DSR output during local loopback. To force DSR high (ON) during local loopback, enable this option. To force DSR low (OFF) during a local loopback, disable it.

Rate Converter/DTE Rate

Choosing option 7 in the Software Switch Menu takes you to the Rate Adapter/DTE Rate Menu (opposite page). The Model 2500 Series rate converter adapts a 56 kbps or 64 kbps line rate to slower DTE data rates. Set the Rate Converter to match the DTE data rate. If the DTE data rate is the same as the line rate, disable rate conversion by selecting item 6 on this menu.

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Note: For DTE data rates of 56 kbps or 64 kbps, set the rate adapter to “Line Rate = DTE Rate”, and the line rate to 56 or 64 kbps, respectively.

For DTE rate of 57.6 kbps, set the rate adapter to “Line Rate = DTE Rate”, set line rate to 56 kbps, set DTE for two stop bits, and set CSU/DSU character length to “11 bits”.

DTE Loop Control

Choosing option 8 in the Software Switch Menu takes you to the DTE Loop Control Menu (below). The local and remote loopbacks on the Model 2500 Series can be controlled from the DTE interface by raising or lowering the LL and RL signals. To allow the DTE to control these loopbacks in this manner, enable this option. Disable if you want the Model 2500 Series to ignore these signals.

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Contents
User Manual Radio and TV Interference Table of ContentsWarranty Statement General InformationProduct Overview Service InformationProduct Features FCC InformationDTE Interface Connection InstallationSupported Applications Model 2500 Series ApplicationsNetwork Interface Connection PowerConfiguration Configuration Using Hardware SwitchesRTS Switch SET SW1Switch SET 1 Summary Table Switch SET 2 Summary Table Switch SET SW2Configuration Using Software Switches Clock ModeAnti-Stream Timer CTS DelaySetting Software Switch Parameters Using the Software Menu SystemVerifying Software Switch Control DTE Data Format Force RTSRate Converter/DTE Rate DSR Status During Local LoopbackRTS/CTS Delay Status Displays Displaying Configuration SettingsOperation LED DescriptionsLAL Test Activation Displaying LINE/LOOP StatusLoopback Test Modes Local Analog Loopback LALRemote Digital Loopback RDL LAL Test ProcedureRDL Test Procedure Telco TestingV.52 BER Test Pattern Generator CSU LoopDSU Loop Dial New Number Switched 56 Dialing Commands Models 2510Store Phone Number Enable DTR Dialing Read Stored NumberDDS Type Dedicated Appendix a SpecificationsTransmission Line 4-wire Wire Gauge Capacitance ResistancePatton Model # Description CONNECTOR, Terminal InterfaceRC = Received Clock DB-25 CONNECTOR, Terminal InterfaceAppendix D Appendix E Transmitter Clock Source During Test Loops
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