User manual
Chapter 3: Software Installation - Windows 95 3-33
Echo User's Manual, ver. 0.00
Configuration
The following installation assumes that your computer system
comes with two standard serial ports, COM1 (at 3F8, IRQ 4); and
COM2 (at 2F8, IRQ 3).
1. You need to choose a range of I/O addresses for your Echo
adapter that will not conflict with any other addresses. A
good range to choose is the default settings, 280h, 288h, 290h
and 298h. Figure 14 shows the example switch settings.
Please refer to Figures 1, 2, or 3 in Chapter 1: Introduction
for the location of the DIP switch block SW1
Figure 14: Windows 95: switch settings
When ON
,
p
ort 1 is COM1
(
3F8 hex
)
When ON, port 2 is COM2 (2F8 hex)
Reserved - must be OFF
Base address sets:
Port 1 = address 280 hex
Port 2 = address 288 hex
Status port address
When OFF, status port is disabled
IRQ channel(s)
All ports will interrupt on Channel A
SW1
Port 3 = address 290 hex
Port 4 = address 298 hex
Port 5 = address 2A0 hex
Port 6 = address 2A8 hex
Port 7 = address 2B0 hex
Port 8 = address 2B8 hex