Cabletron Systems E2100, E1100, E3100 manual Setting the I/O Base Address Jumper

INSTALLATION

2.3SETTING THE I/O BASE ADDRESS JUMPER

The I/O base address Jumper, JP1, must be set to one of four possible addresses before the adapter is installed. The I/O base address jumper sets the I/O (input/output) base address that identifies the adapter to the PC.

The I/O base address is a hexadecimal field that distinguishes the adapter from other adapters that may be in the PC. Two shunts are supplied with the jumper in the event you want to use the 220 address setting. Figures 2-1 and 2-2 show the JP1 jumper’s location.

To set the I/O base address jumper, JP1 (Figure 2-3), hold the adapter so the components are facing you and the ports are on your right.

Figure 2-3. JP1, E1100/E2100 I/O base address Jumper Pins

220 280 300 380

Figure 2-4. I/O Base Address Settings

Select one of four possible I/O base addresses by placing shunts on the JP1 pins as shown in Figure 2-4. Note that address 220 requires the use of both shunts. No shunts are required for the default address 380.

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