Comtrol Cable - Manual (Page 15)

Building Cables for RocketPort Products [Documentation number: 2000430 Rev B] 15
RJ11 Serial Cables and Loopback Plugs
RJ11 Serial Cables and Loopback Plugs
The RocketPort PCI/8J and Universal PCI/8J have eight standard RJ11 modular
connectors, located on the controller board mounting bracket. The ports are
numbered 0 through 7, with Port 7 being the connector closest to the bus.
The following RocketPort models support the female loopback plug for RS-232
port:
• RocketPort PCI
• RocketPort Universal PCI
• RocketPort ISA
Requirements There are no standards for the RJ11. Before you build the custom RJ11 serial
cable for your terminal equipment or device you should:
• Refer to the manufacturer’s installation guide if you need help with connector
pinouts or cables for the peripheral device.
• Supported RS-modes are described in the electronic document shipped with
your Comtrol device.
RJ11 Pinouts This topic describes pinouts for the RJ11 interface connector for an RS-232 port.
The following figures provide pinout information for the RJ11 jack plug and
receptacle
.
RJ11 Loopback
Plugs A loopback plug is an RJ11 serial port plug with pins wired together. You can use
it with application software (for example, Test Terminal) to test serial ports.
To build an RJ11 loopback plug, wire these pins
together:
• Pins 3 to 4
• Pins 1 to 5 to 6