Specifications

Chapter 2 - Installation

Table 2-2 (cont’d)

Step Procedure

4a The default setting for the ISI4608’s base I/O address is 210

hex. The default value for the IRQ jumper is IRQ 10. Choose

the IRQ value by covering the appropriate pins with the

shorting plug (supplied). Look at the diagram shown above,

if needed. If your system requires a different setting or if you

are installing multiple cards, see Appendix A of the User

Guide for a table of valid address settings.

Note: If you are installing the ISI4608 as a second card in a

MultiComRN

Gateway

(remote node gateway) the suggested

I/O address is 220 hex/IRQ11.

Record any changes you make to these settings and keep

them handy for the software installation section in Chapter 3.

5 Install the ISI4608 card(s) into the selected expansion

slot(s) in the same manner as any other add-on card, as

instructed in your computer’s documentation.

6 Fasten the retaining bracket to the computer chassis and

replace the cover.

7 Attach the octopus cable to the DB78S female connector on

the ISI4608 card at the back of your computer. The RS232

ports provided by the octopus cable are for connection to

modems, multiplexers or other devices. If the other device is

a local terminal port, then a crossover cable is required (not

included) between the octopus cable and the terminal port.

See Appendix C of the User Guide for schematic of a

crossover cable.

Note: Any cables connected to the computer must be

shielded to reduce interference.