Configure DialServ interfaces
Digi TransPort User Guide
258
Configure DialServ interfaces
The Dialserv option module mimics a telephone exchange in that it supplies the required voltages
on the line, generates a
RING
signal and has off-hook detection circuitry. It can be used to
provide similar functionality to dialing into an ISP using an analogue MODEM. The card also
contains an analogue MODEM to handle data on the line.
Use PPP/Protocol Switch
These radio buttons select whether the DialServ card uses a PPP instance or the protocol
switch functionality to control traffic on the interface. If PPP is selected, the web page expands
to reveal the standard PPP configuration settings. If Protocol Switch is selected, only the four
settings described immediately below are visible.
Max time to RING line s seconds
The maximum number of seconds that the
RING
signal should be generated for.
RING frequency n Hz
The DialServ module generates a
RING
signal. The frequency of the
RING
is selected from this
drop-down list. The available options are:
• 20Hz
• 25Hz
• 30Hz
• 40Hz
• 50Hz
Initialisation string 1
The text string in this text box contains any required MODEM initialization commands.
Initialisation string 2
The text string in this text box contain initialization commands that will be issued to the
MODEM after the first initialization string.
