Comtrol ISA - Manual (Page 6)

RocketPort® ISA Hardware Installation 6 of 9
RJ Interfaces
The RocketPort 4J, an Octacable model, and the Rack
Mount interface boxes are available with RJ45 connectors.
The RocketPort 8J uses an RJ11 connector.
RJ Pinouts
Use the following table and figures for pinout information
on the
RJ connectors used on the 4J, 8J, Octacable, and
Rack Mount interface boxes.
* Pin 3 is tied to ground on the card, but it is not used in
the cable.
Note: RJ11 connectors are standard telephone cables.
They appear similar to RJ45, but only have 6 pins.
Building RJ45/RJ11 Loopback Plugs
Loopback plugs are used with the
diagnostics to test serial ports.
This RJ45 loopback is used with the
4J, Octacable, and Rack Mount
interfaces.
• Pins 4 to 5
• Pins 1 to 8
• Pins 2 to 6 to 7
The 8J uses an RJ11 loopback, which looks similar but has
this pin wiring:
• Pins 3 to 4
• Pins 1 to 5 to 6
Setting the DIP Switches
The RocketPort ISA card uses a DIP switch to set the base
I/O address range. The default value is 180 (hex). If you
are installing more than one RocketPort card, or if you
experience an I/O address conflict with another device, use
the DIP switches to change the I/O address.
For example, if you install two RocketPort cards and are
using the default address range:
The following table lists possible DIP switch settings. We
recommend starting with the default settings and making
changes only if the default values produce conflicts.
Notes:
1. If you are installing a single RocketPort ISA card, set the
DIP switches as shown in the table.
2. If you are installing two ISA cards, set the DIP switches
on the second card to be the same as the switches on the
first card, EXCEPT SWITCH 5 OFF.
3. If you are installing three ISA cards, follow Note 2 for
the second card, then set the DIP switches on the third
card to be the same as the switches on the first card,
EXCEPT SWITCH 6 OFF.
4. If you are installing four ISA cards, follow Notes 2 and 3
for the second and third cards, then set the DIP switches
on the fourth card to be the same as on the first card,
EXCEPT SWITCHES 5 AND 6 OFF.
Pin
RJ45
RS-232
RJ45
RS-422
RJ11
1 RTS TxD+ DTR
2 DTR Not Used Signal Ground
3 Signal Ground Not Used* TxD
4 TxD TxD- RxD
5 RxD RxD- DCD
6 DCD Not Used CTS
7 DSR Not Used N/A
8 CTS RxD+ N/A
Pin 1 Pin 8
RJ45
Receptacle
Pin 1
1 8
Plug
Top View
Cable
Sample DIP Switch Settings
1st RocketPort
180 (hex)
2nd RocketPort
(Software address can be
any unused I/O address)
First ISA Card DIP Switch Settings (see Notes)
100 - 143 hex 140 - 183 hex 180 - 1C3 hex
200 - 243 hex 240 - 283 hex 280 - 2C3 hex
300 - 343 hex 340 - 383 hex 380 - 3C3 hex
1st Card
8 7 6 5 4 3 2 1
ON
2nd Card
8 7 6 5 4 3 2 1
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON