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4.2. Dip Switch Settings
Switch
Factory
Setting
Function
1 Data Terminal Ready (DTR) Override
l
UP Normal DTR operations: Computer must
provide DTR signal for modem to accept
commands. Dropping DTR terminates call.
DOWN DTR Override: Modem ignores DTR
2 Verbal/Numeric Result Codes
l UP Verbal (Word) Results
DOWN Numeric Results
3 Result Code Display
UP Suppress Result Codes
l DOWN Display Result Codes
4 Command Mode Local Echo Suppression
l UP Enable Echo
DOWN Suppress Echo
5 Auto Answer Suppression
l UP Auto Answer On: Modem answers on first
ring, or higher if specified in NVRAM
DOWN Auto Answer Off: Disable auto answer
6 Carrier Detect (CD) Override
l UP Normal: Modem sends CD signal when
connecting with another modem, drops CD on
disconnect
DOWN Override: CD always ON
7 Power-On and ATZ Reset Software Defaults
UP User Defaults: Load Y or Y1 configuration
from user-defined nonvolatile memory
(NVRAM).
l DOWN Factory Defaults; Load &F0 (Generic)
template from read-only memory (ROM).
8 AT Command Set Recognition
UP Dumb Mode: Disables command recognition
l DOWN Smart Mode: Enables command recognition
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Installation