User manual
TECHNICAL REFERENCE
DIP Switches (External Modems with DIP Switches Only)
Note: If a DIP switch is on, it is down. If a DIP switch is off, it is up. Defaults are in italics.
8-12
Switch Default Function
1 OFF Data Terminal Ready (DTR) Override
OFF Normal DTR operations: computer must provide DTR signal for the modem to accept commands;
dropping DTR terminates a call
ON Modem ignores DTR (Override)
2 OFF Verbal/Numeric Result Codes
OFF Verbal (word) results
ON Numeric results
3 ON Result Code Display
OFF Suppresses result codes
ON Enables result codes
4 OFF Command Mode Local Echo Suppression
OFF Displays keyboard commands
ON Suppresses echo
5 ON Auto Answer Suppression
OFF Modem answers on first ring, or higher if specified in NVRAM
ON Disables auto answer
6 OFF Carrier Detect (CD) Override
OFF Modem sends CD signal when it connects with another modem, drops CD on disconnect
ON CD always ON (Override)
7 OFF Power-on and ATZ Reset Software Defaults
OFF Loads Y0-Y4 configuration from user-defined nonvolatile memory (NVRAM)
ON Loads &F0Generic template from read only memory (ROM)
8 ON AT Command Set Recognition
OFF Disables command recognition (dumb mode)
ON Enables recognition (smart mode)