Black Box MD1641A Manual De Usuario

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SERIES II INTELLIGENT DATA/FAX MODEMS
Sw. Function
Position
Effect
#8
Command Mode Enabled*
UP
(Sync/Async/Dial/Leased)
DOWN*
#9
Local/Remote* LoopBack
UP
(Async/Sync/Dial/Leased)
DOWN*
#10 Dial-Up*/Leased-Line
UP*
DOWN
#11 “AT" vs. “Series II" Result Codes*
UP
(Asynchronous)
DOWN*
#11 Internal*/External Clocking
UP
(Synchronous)
DOWN*
#12 Sync/Async Mode*
UP
DOWN*
*
Factory Default Setting
DIP Switches #13-16
SWITCH
CONDITION
EFFECT
#13/#14
UP/UP*
28.8 K bps Operation
#13/#14
DOWN/UP
19.2 K bps Operation
#13/#14
UP/DOWN
14.4 K bps Operation
#13/#14
DOWN/DOWN
9600 bps Operation
Note:
Modem baud rate commands such as 
$MB33600
override the
setting of these speed selection switches (DIP switches #13 and #14).
#15
UP*
CD/DSR from Interface
#15
DOWN
CD/DSR Forced On
#16
UP
2-Wire Leased Line
#16
DOWN*
4-Wire Leased Line
*Standard Factory Default Setting