3Com 3012 (3C13612), 3015 (3C13615) Serial Port Cable, Describes crossover network cable pinouts

Page 53

Serial Port Cable 53

LAN Switch. Straight-through network cables are delivered along with the router.

Crossover network cable — The sequences of the wires crimped at the RJ-45 connectors of the two ends are different. The cable is used in the connection between the terminal device, such as a PC or a router, and another terminal device. You can create this cable yourself, if necessary.

Table 27 describes straight-through network cable pinouts.

Table 27 Straight-through Network Cable Pinouts

RJ-45

Signal

Category 5

Signal Direction

RJ-45

twisted pair

 

 

 

 

 

1

TX+

White (Orange)

—>

1

 

 

 

 

 

2

TX-

Orange

—>

2

 

 

 

 

 

3

RX+

White (Green)

<—

3

 

 

 

 

 

4

-

Blue

-

4

 

 

 

 

 

5

-

White (Blue)

-

5

 

 

 

 

 

6

RX-

Green

<—

6

 

 

 

 

 

7

-

White (Brown)

-

7

 

 

 

 

 

8

-

Brown

-

8

 

 

 

 

 

Table 28 describes crossover network cable pinouts.

Table 28 Crossover Network Cable Pinouts

 

 

Category 5

 

 

RJ-45

Signal

Twisted Pair

Signal Direction

RJ-45

 

 

 

 

 

1

TX+

White (Orange)

—>

3

 

 

 

 

 

2

TX-

Orange

—>

6

 

 

 

 

 

3

RX+

White (Green)

<—

1

 

 

 

 

 

4

-

Blue

-

4

 

 

 

 

 

5

-

White (Blue)

-

5

 

 

 

 

 

6

RX-

Green

<—

2

 

 

 

 

 

7

-

White (Brown)

-

7

 

 

 

 

 

8

-

Brown

-

8

 

 

 

 

 

You can use Table 28 as a reference while distinguishing or preparing the two kinds of Ethernet cables. While preparing the Ethernet cables, follow the chromatogram given in this table to arrange the wires. Otherwise, communication quality will be affected even though the equipment at two ends is connected.

Serial Port Cable

The synchronous/asynchronous serial port cable is connected to a DB-50

 

receptacle. You must select the appropriate cable for the protocol.

Image 53
Contents Router 3000 Family Installation Guide Campus Drive 3Com CorporationMarlborough, MA 01752-3064Contents T1 Cable Console Cable AUX Cable Ethernet CableConventions About this GuideList conventions that are used throughout this guide Text ConventionsExamples Router Introducing the Router FamilyRouter 3012 LEDs System Specifications for the RouterLists attributes of the console port Console PortAUX Port Lists attributes of the AUX portEthernet Port Router 3013Lists attributes of the Ethernet port Synchronous/Asynchronous Serial PortRouter 3013 Description Router 3015 Description System Specifications for the Router 3013 and RouterSerial Router 3013 and Router 3015 LEDsEIA/TIA-23 Isdn S/T and Isdn U Ports Router 3016Lists attributes of the Isdn S/T and Isdn U ports Attributes of Isdn S/T and U PortsRouter 3016 Description Router 3018 Description System Specifications for the Router 3016 and RouterT1-ACT/E1-ACT Router 3016 LEDsLists attributes of the CT1/PRI and and E1/CE1/PRI ports CT1/PRI and E1/CE1/PRI PortsAttributes of the Ethernet Port Attributes of the CT1/PRI PortIsdn PRI Installing the Router Dust Temperature and HumidityGases Static ElectricityLightning Damage Electromagnetic DischargeBottom of the Router Connecting Installing the RouterWire On a WorkbenchTo the Ethernet To the ConsoleTerminal Connecting the Router to the WAN Installing the Router Verifying InstallationInstalling the Router Connecting the Router Booting and Configuring RouterSetting To a Local ConsoleConnection Description Dialog Box Parity None Stop bits Set the following parameters Bits per second 9600 Data bitsHyperTerminal Window Information displays on the terminal screen Powering on RouterStartup Process Configuration Online help, available by typing ? at any time Help for the Configuration Maintaining the Router Software MaintenanceXmodem Protocol DownloadingSend File Dialog Box Protocol Creating the Tftp Upgrade ConfigurationTerminal displays the following menu Applications with the copy from Tftp ProtocolPress Enter. The following information displays Configuring the RouterCreating a Local FTP Upload/Download Configuration Using FTPUpgrading the Application UploadingCreating a Remote FTP Upload/Download Configuration Add the user name and passwordFTP server ready on R3000 at User10.110.10.10none R3000 quit R3000 save Router Chassis HardwaretoolsCover Boot ROM LocationMaintaining the Router Nothing is Displayed on the Terminal after Power-On TroubleshootingPower LED is Off Illegible Characters Power-OnDisplay on Terminal afterConsole Cable Optional Cable SpecificationsAUX Cable Describes the console cable pinouts Console Cable PinoutsThat uses category-5 twisted pair cable, as shown in Figure Ethernet CableDescribes the AUX cable pinouts AUX Cable Pinouts Describes crossover network cable pinouts Serial Port CableStraight-through Network Cable Pinouts Crossover Network Cable PinoutsCable Pinouts DTE and DCE modeTypical DTE and DCE EIA/TIA-232 Maximum Transmission Baud Rate bps Distance m24 EIA/TIA-232 DCE illustrates the V.24 DCE cable Describes V.24 EIA/TIA-232 DTE cable pinoutsDescribes V.24 EIA/TIA-232 DCE cable pinouts 24 EIA/TIA-232 DTE Cable PinoutRTS/CTS CTS/RTS DTR/DSR LL/DCD DTE Cable Pinouts illustrates the V.35 DTE cable DB-50 Signal Signal DirectionDescribes V.35 DTE cable pinouts DCE Cable Pinouts illustrates the V.35 DCE cableDTE Cable Pinouts illustrates the X.21 DTE cable Signal DB-50 DirectionDescribes V.35 DCE cable pinouts 35 DCE cable Pinouts DCE Cable Pinouts illustrates the X.21 DCE cable Describes X.21 DTE cable pinoutsDescribes X.21 DCE cable pinouts 21 DTE Cable PinoutsEIA/TIA-449 DTE Cable illustrates the EIA/TIA-449 DTE cable DB50 Signal Signal Direction DB37Pinouts Describes EIA/TIA-449 DTE cable pinoutsEIA/TIA-449 DCE Cable illustrates the EIA/TIA-449 DCE cable EIA/TIA-449 DCE Cable AssemblyEIA-530 DTE Cable illustrates the EIA-530 DTE cable DB50 Signal Signal Direction DB25Describes EIA-530 DTE cable pinouts EIA-530 DTE Cable PinoutsIsdn BRI Cables T1 CableDescribes T1 cable pinouts Describes Isdn S/T port cable pinoutsIsdn U Port Cable Obtaining Support for Your Router Support and Repair Contact UsTelephone Technical US and Canada Telephone Technical Support and Repair Latin America Telephone Technical Support and RepairAppendix B Obtaining Support for Your Router