Dip Switches (Modems With Dip Switches Only) - 3Com 000839-08 Manual

DIP Switches (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.
DIP switches which control a modem function override related modem commands written to the
modem (i.e. You cannot write AD0 to NVRAM if DIP 1 is up.).
Factory
Switch Setting 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
2 OFF Verbal/Numeric Result Codes
OFF Verbal (word) results
ON
3 ON Result Code Display
OFF Suppresses result codes
ON
4 OFF Command Mode Local Echo Suppression
OFF Displays keyboard commands
ON
5 ON Auto Answer Suppression
OFF Modem answers on first ring, or higher if specified in NVRAM
ON
160
T
ECHNICAL
Modem ignores DTR (Override)
Numeric results
Enables result codes
Suppresses echo
Disables auto answer
Q R
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