User Guide

10
Building RJ45 Loopback Plugs
Building RJ45
Loopback Plugs
Loopback plugs are used with the diagnostics to test serial
ports.
This RJ45 loopback is used with the Octacable and Rack
Mount interfaces.
•Pins 4 to 5
•Pins 1 to 8
• Pins 2 to 6 to 7
RJ11 Interface The RocketPort 8J/PCI features 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.
RJ11 Pinouts Use the following table and figures for pinout
information regarding the RJ11 jack.
Building RJ11
Loopback Connectors
Loopback connectors are plugs, with pins wired together as shown, that are used
in conjunction with the RocketPort diagnostic software to test serial ports.
Wire these pins together to create an RJ11 loopback
plug:
•Pins 3 to 4
• Pins 1 to 5 to 6
Specifications
The following tables illustrate RocketPort PCI conditions and specifications.
18
Plug
Top View
Cable
Pin RS-232 Signals
1DTR
2GND
3TxD
4RxD
5DCD
6CTS
Pin 1
Receptacle
Pin 1
16
Plug
Top View
Cable
Environmental Condition Value
Air temperature:
System on
System off
0 to 40
°c
-20 to 85°c
Humidity (non-condensing):
System on
System off
8% to 80%
20% to 80%
Altitude 0 to 10,000 feet