Multi-Tech Systems MT2834BLR - Manual (Page 14)

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Chapter 2 - Installation
Dip Switch Settings #13 - 16
Note: A modem baud rate command (e.g., $MB33600) overrides the
setting of the speed selection switches (#13 and #14).
Switch Position Effect
13/14 UP/UP* 28.8 K bps Operation (Default)
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
#15 UP* CD/DSR from Interface
#15 DOWN CD/DSR Forced On
#16 UP Used in combination with
#16 DOWN DIP-Switch #9/Loopback Tests
* Factory default setting
2.4 OOS (Busy Out) Toggle Switch
The MT2834 contains a two-position OOS switch on the front panel. This
switch can be used to create a “busy out” (OOS) condition for the modem
(i.e., take the modem off-hook). To place a modem in the Busy condition,
move the OOS toggle switch to the (BUSY) position. The modem then
goes off-hook, its OOS and OH LEDs light, and incoming calls to this
modem get a busy signal. If you suspect a problem with a particular
modem, you can use the BUSY switch to have an optional device (such as
a “hunt group”) that looks for a non-busy line to perform a “roll over” to the
next available modem while you check the status of the Busy modem.