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Setting the DIP Switches
The Express 3100 contains two DIP switches (1 and 2), located on the
Rear Panel. These switches let you physically configure DTE rates and
reset the unit. The factory default position for both switches is
down (ON). Leave the switches in the down (ON) position during the
initial installation. Figure 2-3 shows the location of the switches on the
Rear Panel.
Figure 2-3. DIP Switch Locations on Rear Panel
DIP Switch 1
With DIP switch 1 set to the
matically adapts to the DTE rate, up to 115.2 kbps. With DIP switch 1 set
to the
position, the unit operates at a DTE rate of 230.4 kbps. A
OFF (up)
special serial COM port using a 16650 UART chip is required to operate
at this higher rate.
DIP Switch 1:
On (Down) = Autobaud (speeds up to 115.2 kbps)
(DTE Rates)
Off (Up) = 230.4 kbps (requires 16650 UART)
DIP Switch 2
DIP switch 2 resets factory default settings when you set it to the
position. When the switch is set to the
OFF (up)
new settings can be entered. These settings are saved until DIP
switch 2 is reset to the
DIP Switch 2:
Off (Up) = Factory Default (resets settings)
(Reset)
On (Down) = Normal (saves settings)
61200240L2-20
Chapter 2. Setting Up the Express 3100
12VDC
EIA232
PWR
position, the Express 3100 auto-
ON (down)
position; then, they are cleared.
OFF (up)
Express 3100 User Manual
OFF
1
2
ON
2
1
ISDN
OFF
1
2
ON
position,
ON (down)
2-9
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