Transcend Information III manual Running the Group 2 Test, Assembling a Loopback Plug

Page 53

Starting the Diagnostic Program

5-5

Running the Group 2 Test

The Group 2 test is called the Network Loopback Test. It tests the 3C592-COMBO adapter’s ability to transmit and receive data via the internal transceiver. This test requires installation of a loopback plug at the adapter’s BNC transceiver connection. Or, you can run the test on a nonproduction network on which only the computer being tested is operating.

CAUTION: Running the Group 2 test while connected to an active network can cause intermittent failures.

Assembling a Loopback Plug

If you do not have a loopback plug, you may be able to get one from your authorized network supplier, or you can make your own. To assemble the loopback plug, connect two 50-ohm network cable terminators to a T connector, as shown in Figure 5-2. You can purchase the terminators from your network supplier (3Com part number 3C535).

T connector	Terminator

Terminator

Figure 5-2 Assembling a Loopback Plug

Starting the Group 2 Test

To run the Group 2 test on a 3C592 EISA adapter, follow these steps:

1Connect the loopback plug to the round BNC connector on the back of the adapter.

2Start the Conﬁguration and Diagnostic Program, as described earlier in this chapter.

Image 53

Contents Adapters 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Lifetime Warranty France, Israel Contents Performing Troubleshooting and Diagnostic Tests Cispr B Compliance Figures Tables Introduction How to Use This GuideAbout this Guide Print autolink.log ConventionsIntroduction Features Optional Adapter Installing the EisaInserting the Adapter Installing the Boot PromInspecting the Adapter PCI and Eisa Bus Slots in an Eisa Computer List of devices appears, arranged by type Conﬁrming Adapter InstallationName of the installed 3Com adapter appears, as shown below Connecting to Thin Ethernet Cable Connecting to the NetworkConnecting to the On-board Transceiver Connecting to an External Transceiver Slide Latch Auto Select Media Type Adapter Conﬁguration Overview ConfiguringConﬁguring the Adapter Using a NOS Other Than WindowsUsing Windows Software Option Settings Full Duplex Media TypeNetwork Driver Optimization Type at the prompt Changing the SettingsI N N U Press Tab to highlight OK. Press Enter Continue this procedure with any of the other optionsSelect Adapter Installed Adapters Drivers Loading NetworkLocating the Network Drivers Accessing DOSOne Adapter in a Client Loading NetWare ODI DriversAutoLink Requirements Alternatively, at the prompt, type At the prompt, typeAutoLink Information Screen To print the ﬁle, type Multiple Adapters in a ClientWhen the program has ﬁnished a Save the conﬁguration Main menu appears Reboot the computer Finding the Adapter’s Slot NumberRepeat a for the second adapter One Adapter in a Server For NetWare 3.12, 4.0x, or Multiple Adapters in a ServerFinding the Adapter’s Port Address for Multiple Adapters Bind IPX to X NET=XXXX Bind IPX to Y NET=XXXX Click OK This imports the driver from the EtherDisk diskette Loading Windows 95 DriversNdis Drivers Loading Drivers in Non-NetWare EnvironmentsAdditional Drivers Using Transcend PC Link SmartAgent SoftwareDesktop Management Interface Troubleshooting Overview Performing Troubleshooting Diagnostic TestsTroubleshooting with the Diagnostic Tests Starting the Diagnostic Program Starting the Diagnostic ProgramRunning the Group 1 Tests Assembling a Loopback Plug Running the Group 2 TestRunning the Group 3 Test Setting Up an Echo ServerStart the diagnostic program on the echo server Getting Help If a Test Fails If this test fails, try another loopback plug To change the test parameters, follow these steps Changing the Test SetupLink Beat LED Miscellaneous ChecksAdapter Speciﬁcations SpecificationsAUI Connector Pin Assignments RJ-45 Connector Pin AssignmentsRG59 B/U 50 ohm Cable RequirementsFor unshielded twisted-pair UTP connections 100 ohm 3Com Bulletin Board Service On-line Technical ServicesAccess by Modem Technical SupportWorld Wide Web Site 3ComFacts Automated Fax ServiceThreeComForum on CompuServe To use ThreeComForum Log on to CompuServeLocal numbers are available within the following countries Support from Your Network SupplierTo obtain an RMA number, call or fax Returning Products for RepairAUI cable GlossaryBackplane BackboneBus Echo serverEthernet EMM386Twisted-pair Numerics SymbolsIndex Eisa ﬁber-optic Windows 3.X 4-3 Windows 95 1-2, 3-3 Limited Warranty Santa Clara, CA 95052-8145 408 Interference Handbook CE Notice