522 Chapter 39 Hardware procedures
NN10600-175 6.1S2
Setting modem DIP switches
Set modem DIP switches using the instructions provided by the manufacturer
of the modem before you configure the modem software.
Prerequisites
• Ensure that the modem you want to use supports all of the required
settings. For more information, see
“Modem selection” (page 175).
Procedure steps
1 Set the modem DIP switches as specified in the table “Modem DIP switch
settings” (page 522). The table applies to a US Robotics 56K modem as
an example of the settings you must apply.
Turning on power
Turn on the power source after you have completed all procedures involving
power supplies or cables.
Table 15
Modem DIP switch settings
DIP
switch
number
Description of the setting Required setting
1 modem ignores DTR (override) on (down)
2 verbal (word) results off (up)
3 disable word codes off (up)
4 suppresses echo on (down)
5 modem answers on first ring, or higher if
specified in non-volatile memory (NVRAM)
off (up)
6 modem sends CD signal when it connects
with another modem, drops CD on
disconnect
off (up)
7 loads Y or Y1 configuration from user-defined
NVRAM
off (up)
8 disables command recognition (dumb mode) off (up)
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