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Chapter 7 - DIP-Switch Settings
Switches #13 and #14
Speed Switches
(Synchronous Mode/Leased Line)
DIP-Switches #13 and #14 are used to set the modem’s data transmission rate. Switches #13 and
#14 are used in combination, typically in leased-line and call origination applications.
Note: The modem baud rate command (
$MBn) overrides the setting of these speed selection
switches (DIP switches #13 and #14).
28800 bps Operation
=
Switch #13 UP and Switch #14 UP
19200 bps Operation
=
Switch #13 DN and Switch #14 UP
14400 bps Operation
=
Switch #13 UP and Switch #14 DN
9600 bps Operation
=
Switch #13 DN and Switch #14 DN
Factory Default Setting =
Switch #13 UP and Switch #14 UP
Switch #15
Carrier Detect/DSR Forcing -- "DSR"
(Asynchronous/Synchronous Mode/Dial-Up/Leased Line)
Some terminals react in unusual ways to the toggling of the Carrier Detect (CD - RS-232C/V.24 pin
6) signals. The most common symptom is that the modem does not respond to commands, or does
not echo characters. In these cases, it is advisable to force these two signals On in order for the
terminal to communicate properly with the modem in Command mode. This is done by setting DIP-
Switch #15 DOWN. With DIP-Switch #15 in the UP position, both CD and DSR will be either on or off,
depending on the On-Line status.
CD and DSR normal
=
Switch #15 UP
CD and DSR forced On
=
Switch #15 DOWN
Factory Default Setting
=
UP
Switch #16
(Reserved for Future Use)
7.3
Speaker Volume Control
You can adjust the volume of the modem’s phone-line monitor speaker with a volume control knob,
located on the back of the modem next to the RS-232C connector (see Figure 9-1 for location). Turn
the knob clockwise to increase the modem's volume and counterclockwise to decrease speaker
volume.
Summary of Contents for BA-Series
Page 1: ...BA Series Intelligent Data Fax Modem User Guide ...
Page 5: ...Chapter 1 Introduction and Description ...
Page 13: ...Chapter 2 Installation and Connection ...
Page 17: ...Chapter 3 Software Configuration and Modem Basics ...
Page 21: ...Chapter 4 Command Mode ...
Page 49: ...Chapter 5 S Registers ...
Page 57: ...Chapter 6 Callback Security and Remote Configuration ...
Page 65: ...Chapter 7 DIP Switch Settings ...
Page 74: ...Chapter 8 Warranty Service and Tech Support ...
Page 78: ...Appendixes ...