
Hostess®550 16 Hardware Installation Card 1 of 4
Scope
This Hardware Installation Card discusses the following
topics for the Hostess 550.
•Installation overview
•Identifying your controller
•Setting the base I/O address and IRQ switches
•Daisy-chaining IRQs
•Setting communications jumpers
•Installing the controller
•Specifications
•Troubleshooting and placing a support call
The Comtrol web/ftp site contains additional information:
•Signal information for the 100-pin connector on the
controller
•Connector information for your interface.
•Building loopback plugs
•Additional device drivers
•Software installation documentation
Note: Call Technical Support if you require a Hostess
Series and Hostess 550 Series Programming Guide.
Installation Overview
Installation follows these general steps:
1. Set the base I/O address and IRQ switches to unused
values for your machine.
2. Install the controller board.
3. Configure and attach the interface box, if applicable.
Note: See the Interface Reference Card to configure
the interface (if applicable).
4. Attach peripherals to the interface box.
Note: You must provide the serial cables to connect the
peripheral devices to the controller.
5. Install the device driver. You may need to download a
driver and the software installation documentation at:
www.comtrol.com or ftp.comtrol.com
Identifying Your Controller
The following figure illustrates the position of the
controller’s basic parts, such as:
•The communications jumpers, which are set to RS-232
mode by default. If you plan on using RS-422 mode,
you must move the shorting jumpers.
•The S1 switch, which sets the I/O address. The S2
switch, which sets the interrupt for the controller.
•The Out and In headers for daisy-chaining multiple
controllers.
Setting the Base I/O Address
Use the following table to set the base I/O address. Make
sure that you select unused address in your system. If you
are unsure what settings are available, refer to your
system documentation.
Note: The default I/O address from the factory is 500.
I/O Address
Range S1 Switch
200 - 27F
280 - 2FF
500 - 57F
Default
580 - 5FF
Bracket
100-Pin
Connector
Bus Connector
S1 (ADDRESS)
S2 (INTERRUPT)
Mounting
Communications Jumpers
Out In
ON
ON
ON
ON
Hostess®550 16
Hardware Installation Card