Patton electronic 2073RC user manual Loop V.54 & Telco Diagnostics, Operating Local Loopback LLB

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Loop (V.54 & Telco) Diagnostics

The 2073RC offers two loop diagnostics for diagnosing the 2073RC and any communication links. These tests can be activated via signals on the serial port interface or the front panel switch.

Operating Local Loopback (LLB)

The Local Loopback (LLB) test checks the operation of the local 2073RC and is performed separately on each unit. Any data sent to the local 2073RC in this test mode will be echoed (returned) back to the user device (i.e.,characters typed on the keyboard of a terminal will appear on the terminal screen).

Figure 12. Local loopback

To perform a LL test, follow these steps:

1.The Local Loop can be initiated from the 2073RC unit either by acti- vating the LL signal on the DTE (if you are not sure which lead is the RDL signal, please refer to the Appendix,) or by toggling the top front panel switch towards the label “LLB”. The Yellow TM (Test mode) LED will turn on to indicate a successful Local loop condition.

2.Verify that the data terminal equipment is operating properly and can be used for a test.

3.Perform a V.52 BER (bit error rate) test bit error rate (V.52) diagnos- tics.If the BER test equipment indicates no faults, but the data termi- nal indicates a fault, follow the manufacturer’s checkout procedures for the data terminal. Also, check the interface cable between the terminal and the 2073RC.

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Contents User Manual Contents Interface Pin Assignment Radio and TV Interference Warranty InformationCE Notice Tel +1 301 Email support@patton.com ServiceUTC-5, Monday through Friday General Information FeaturesDescription Configuration Model 2073RC top view showing location of DIP switchesConfiguring the Front Interface Card OFFSW3-6 Activation Description Switches SW3-5 Front panel switch enabled/disabledSwitch SW3-4 Response to Remote digital RDL Loopback SW3-4 DescriptionConfiguring the Rear Interface Card Model 2073RC Series interface card optionsOrientation of Interface Card Straps Model 1001RCM13448C Strap Settings Strap Function Position 1&2 Position 2&3Model 1001RCM11548C Strap Settings Position DescriptionFrgnd & Sgnd Pin Model IM2RC/IA 10Base-T Ethernet Rear Card IM2RC/A, rear panel optionsNo connection Page Rack Power Supply InstallationModel 1001R14 Rack Chassis Connecting to a DTE Device Powering up your 1001R14 rackInstalling the Model 2073RC Into the Chassis Connecting to a DCE DeviceConnecting to a G.703/64 Kbps Network NetLink-E1 twisted-pair interfaceOperation LED DescriptionsLoop V.54 & Telco Diagnostics Operating Local Loopback LLBBit Error Rate V.52 Diagnostics Operating Remote Digital Loopback RDLConnectors DiagnosticsLED Status Indicators Temperature RangeInterface 34F Female Connector DCE Configuration Pin # Signal Appendix BFrame Ground Page Copyright Patton Electronics Company All Rights Reserved