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Tutorial how to wire an rj 45 console cable


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Tutorial how to wire an rj 45 console cable

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Tutorial how to wire an rj 45 console cable

  1. 1. How to Wire an RJ-45 Console CableRouters and network switches typically require an RS232 serial data connection tointerface with the device for initial configuration. Serial data connections may also beused for diagnostics purposes, especially when a network device is malfunctioningand unreachable over the network. Cisco switches and routers now require aspecially configured RJ45 console cable when communicating with the devicesthrough a serial connection. Build an RJ45 console cable in order to connect,configure or troubleshoot a Cisco device.Kits YouNeed to WireCisco Console Cable RJ45-to-DB9 adapter kit Standard CAT6 or CAT5 patch cable Phillips screwdriverInstructions to Wire an RJ-45 Console Cable1. Remove the screws on the cover of the DB9-to-RJ45 adapter kit and then removethe cover from the RJ45 connector.2. Plug the wires that extend from the RJ45 connector into the back of the DB9connector according to the pinout below:DB9 pin 8 to RJ45 pin 1DB9 pin 6 to RJ45 pin 2DB9 pin 2 to RJ45 pin 3DB9 pin 5 to RJ45 pin 4DB9 pin 3 to RJ45 pin 6DB9 pin 4 to RJ45 pin 7DB9 pin 7 to RJ45 pin 8Note that the RJ45 adapter pins are numbered from left to right when looking at theRJ45 socket with the tab up. The DB9 connector pins are labeled with the pin numbernext to each pin in small writing.
  2. 2. 3. Snap the cover back onto the RJ45-to-DB9 adapter. Tighten the screws to securethe cover.4. Connect a CAT5 or CAT6 standard patch cable to the RJ45 connector end of theadapter. The Cisco console cable is now ready for use.More Notes:Cisco RJ45 Rollover Cable PinoutRollover Cable:You can identify a roll-over cable by comparing the two modular ends of the cable.Holding the cables side-by-side, with the tab at the back, the wire connected to thepin on the outside of the left plug should be the same color as the wire connected tothe pin on the outside of the right plug. If your cable was purchased from CiscoSystems, pin 1 will be white on one connector, and pin 8 will be white on the other.Uses of Rollover Cable:Rollover cables, like other cabling types, got their name from how they are wired.Rollover cables essentially have one end of the cable wired exactly opposite from theother. This essentially “rolls over” the wires- but why would we need to do such athing? Rollover cables, also called Yost cables, usually connect a device to a router orswitch’s console port. This allows a programmer to make a connection to the routeror switch, and program it as needed.PC to Console PortRouter AUX port to External Modem Router Router Workstation Workstation Direction Pin name Pin Pin Pin name White-Orange 1 8 Brown Orange 2 7 White-Brown White - Green 3 6 Green Blue 4 5 White-Blue White-Blue 5 4 Blue Green 6 3 White-Green White-Brown 7 2 Orange Brown 8 1 White-OrangeMore info related to Cisco console cable: