The “SET1” DIP switch selects “Master/Slave” mode, the “SET2” switch
defines a method of the DSL channel rate negotiation and the “SET4”
switch sets a mode of modem management. Purpose of the switches are
shown on Table 5.
Table 5
Switch
Purpose
Position
Meaning
SET1
Operation
mode
ON
Master modem (STU-C)
OFF
Slave modem (STU-R)
SET2
Local or
Preactivation
rate select
ON
Rate is exchanged by
Preactivation
OFF
Rate is set locally on
each modem
SET3
RS-232C
console port
data rate
ON
57600 bps
OFF
9600 bps
SET4
Modem
management
method
ON
by console port
OFF
by DIP switches
Attention!
Reboot the modem to activate a new modem operation
mode, changed by the DIP switches!
16
