Comtrol Cable - Manual (Page 18)

18 [Documentation number: 2000430 Rev B] Building Cables for RocketPort Products
RJ45 Loopback Plugs
RJ45 Loopback
Plugs A loopback plug is an RJ45 serial port plug with pins wired together. You can use
it with application software (for example, Test Terminal) to test serial ports.
The following RocketPort models support RJ45 loopback
plugs:
• RocketPort PCI: 4J (4-port RJ45), the Octacable model,
and the Rack Mount interface module
• RocketPort Universal PCI: Octacable model, the 4J (4-
port RJ45) model and the Rack Mount interface module.
• RocketPort Plus Universal PCI: Octacable model.
• RocketPort ISA
RS-232 Loopback
Plug To build an RJ45 loopback plug, wire the following pins together:
• Pins 4 to 5
• Pins 1 to 8
• Pins 2 to 6 to 7
Note: See the Help distributed in Test Terminal (WCom2.exe) for more
information on testing serial ports. Test Terminal is installed when you
install PortVision.