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Patton electronic Test Modes, Loopbacks, 3088RC Block Diagram, Local Analog Loopback Diagram

Models: 3088RC RocketLink-G NTU Rack Mount G.SHDSL Modem Card

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5.2 TEST MODES

5.2 TEST MODES

The 3088RC offers test modes in the form of loopbacks, PRBS pattern generators, and combinations of both (see Figure 17 on page 45). Figure 18 is a block diagram of the Model 3088RC with respect to test modes.

511Pattern

Generator

511BER

Meter

DSL

Framer

Line

DSL

Framer

511Pattern

Generator

511BER

Meter

Figure 18. 3088RC Block Diagram

Loopbacks

The 3088RC supports both Local Analog Loopbacks (LAL) and Remote Digital Loopbacks (RDL). These can be initiated either from the optional front panel switches or by the console command dsl set loopback <offlalrdl>. The data path for the LAL is shown in Figure 19.

511Pattern

Generator

511BER

Meter

DSL

Framer

Line

DSL

Framer

511Pattern

Generator

511BER

Meter

Figure 19. Local Analog Loopback Diagram

The data received from the serial interface is looped back before going out on the DSL line. Note that this loopback occurs after the pattern gen- erator/BER meter. This means that running a 511 pattern in conjunction with an LAL should result in no error detected by the meter. The data path for the RDL is shown in Figure 20.

511 Pattern		Line
Generator		Line
511 BER	DSL	DSL
Meter	DSL	DSL
	Framer	Framer

511Pattern

Generator

511BER

Meter

Figure 20. Remote Digital Loopback Diagram

The RDL causes the remote unit to loop the data received from the DSL line back to the DSL line.

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Patton electronic user manual Test Modes, Loopbacks, 3088RC Block Diagram, Local Analog Loopback Diagram

Contents

RocketLink-G NTU USER MANUALMODEL 3088RC Rack Mount G.SHDSL Modem CardConfiguration Warranty InformationGeneral Information Connecting the Model 3088RC/D/V X.21 to a “DCE” or “DTE” de InstallationOperation Connect Twisted Pair 120 ohm to G.703/G.704 NetworkSpecifications Model 3088RC Interface Pin Assignments1.1 COMPLIANCE EMC Compliance 1.0 WARRANTY INFORMATIONSafety Compliance PSTN Regulatory1.2 FCC PART 68 ACTA STATEMENT 1.3 RADIO AND TV INTERFERENCE FCC PART1.4 INDUSTRY CANADA NOTICE 1.5 CE DECLARATION OF CONFORMITYTel +1 301 Email support@patton.com 1.7 SERVICE1.6 AUTHORIZED EUROPEAN REPRESENTATIVE D R M Green European Compliance Services Limited1.8 SAFETY WHEN WORKING WITH ELECTRICITY the device ﬁrst2.0 GENERAL INFORMATION 2.1 FEATURES2.2 DESCRIPTION 3088RC/C/AI provides a Ethernet interface on an RJ45 connector 2.3 SERIAL INTERFACE TYPES3088RC/A/I provides a V.35 interface on an M/34 female connector 3088RC/D/V/V provides a X.21 interface on a DB-15 female connector3.1 ABOUT SOFTWARE CLI CONFIGURATION 3.0 CONFIGURATION3.2 ABOUT HARWARE DIP SWITCH CONFIGURATION Function 3.3 CONFIGURING THE DIP SWITCHES V.35, X.21, and Ethernet ModelsPosition PositionS1-2 S1-1 through S1-7 Data RateS1-1 S1-3S1-3 S1-1S1-2 S1-4Front Panel Switches SettingS2-1 Front Panel Switches S1-8 TX ClockS2-4 S2-4 through S2-5 Clock ModeClock Mode S2-5S2-6 3.4 ABOUT SYSTEM RESET MODES2-6 DTE Loops S2-7 DTE Interface TypeConÞguration Reset to Factory Defaults Software Upgrades3.5 CONFIGURING THROUGH THE CONSOLE DSL Link State In Progress, Success, Deactivated, or Idle DSL Error Monitor Interval Time The length in seconds of an intervalDSL Sync State Out of Sync, Acquiring Sync, In Sync, or Losing Sync Console Help Commands DSL Line Condition Good or Poorsystem set password password Sets the system password System ConÞguration Commandssystem set circuitid circuitid Sets the circuit ID dsl set lineprobe enableddisabled Enable or disable line probe System Status CommandsDSL ConÞguration Commands DSL Error MonitorDSL Clear Errcntrs Command DSL Status Commanddsl set errmon inttime inttime Sets the length of each interval Strap 3.6 CONFIGURING THE V.35 REAR CARDModel 1001RCM13445 & 1001RCM134TB Strap Settings Position 1&2Description 3.7 CONFIGURING THE X.21 REAR CARDModel 1001RCM11545& 1001RCM115TB Strap Settings StrapLine Framing & Coding 3.8 CONFIGURING THE E1 REAR CARDDIP Switch ConÞguration Line Coding OptionsS1-2 OptionJumper ConÞguration S1-3Figure 4. K Module Rear Panels, Showing Location of Connectors Making Interface ConnectionsFigure 5. 120 ohm RJ-48C G.703/G.704 Interface Figure 6. 75 ohm Dual Coaxial G.703 Interface 3.9 CONNECTING THE ETHERNET REAR CARD Note The 3088RC/C/AI only supports synchronous speedsConnecting the Interface Driver Board Figure 7. Driver Board mounted on Model 3088RCFigure 9. Model 3088RC Ethernet Connector Pinout Connecting to the 10Base-T Ethernet PortFigure 8. 3088RC/C/AI Ethernet Port Page Figure 10. RJ-45 Line Interface LED Status MonitorsFigure 11. 3088RC Rear Panel, LED Locations 4 pulses = IMRC2/IA buffer is saturated 1 pulse = system status ok2 pulses = No MAC entries in the MAC address table 5 pulses = WAN receive frames too large4.1 THE MODEL 1001R14 RACK CHASSIS 4.0 INSTALLATIONThe Rack Power Supply more informationPowering Up Your 1001R14 Rack 4.2 INSTALLING MODEL 3088RC SERIES INTO THE CHASSIS4.3 CONNECTING THE TWISTED PAIR INTERFACE 3088RC/A/I Figure 13. Model 3088RC V.35/X.21 interfaces3088RC/D/V X.21, female DB-15DSL Span 4.4 CONNECTING THE MODEL 3088RC/A/I V.35 SERIAL INTER FACEConnecting the Model 3088RC/A/I V.35 to a “DTE” device Straight-Through CableTail-circuit cable Connecting the Model 3088RC/A/I V.35 to a “DCE” deviceRemote Model 3088RC DSL Span G.703 E1 NTU Model 3088RC/A DCEThe interconnecting cables shall be acceptable for 4.5 CONNECTING THE MODEL 3088RC/D/V X.21 SERIAL INTER FACEConnecting the Model 3088RC/D/V X.21 to a “DCE” or “DTE” device Figure 16. Connecting the Model 3088RC/D/V to X.21 DTE or DCE4.6 CONNECTING THE 3088RC/K/K E1 INTERFACE 4.7 CONNECTING THE 3088RC/C/AI ETHERNET INTERFACEColor 5.1 LED STATUS INDICATORS5.0 OPERATION PowerFigure 18. 3088RC Block Diagram 5.2 TEST MODESLoopbacks Figure 19. Local Analog Loopback Diagram5.3 REMOTE CONSOLE OPERATION PatternsEstablishing a Remote Console Session 4. At the command prompt, enter the command remote console Figure 22 is a screenshot of opening a typical remote console session Differences in Local and Remote Control Session Behavior Figure 23. Remote control session with LAL diagram5.4 SOFTWARE UPGRADE to communicate with the far-end 3088RC5.5 RESET CONFIGURATION TO FACTORY DEFAULT APPENDIX A A.4 SERIAL CONNECTORA.5 DIAGNOSTICS A.1 CLOCKING MODESA.9 LINE CODING A.7 CONFIGURATIONA.8 TRANSMISSION LINE A.10 LINE RATES DSL LINEB.1 RJ-11 NON-SHIELDED DSL PORT SignalAPPENDIX B Pin #Signal B.3 E1 INTERFACEB.4 X.21 INTERFACE SignalSignal B.5 RS-232 CONSOLE INTERFACERJ-45 non-shielded connector EIA-561 Signal GroundPage Page Copyright 2008 Patton Electronics Company All Rights Reserved