SIREC D Display Recorder 7ND4000

Programming
4.10.3 Modem Setup. This menu option
allows you to enable and set up a modem string for
a modem connected to the RS232 port. A modem is
not supported on the RS485 port. If enabled, the
start up string is sent to the modem to set it in the
following mode:
• Use factory defaults
• Assume DTR is always on
• Disable ALL responses to the com port
• Auto answer on the first ring
• Connect at 9600 baud
• Use memory profile 0
• Store setup in memory profile zero
Not all modems obey the same instructions. You
can edit the default initialization string to work with
any “Hayes Extended Mode compatible” modem
which may not be that compatible. There are two
menu choices
• Modem Enable - Enable or disable modem
support
• Modem String - Edit the initialization string
sent to the modem
A. Modem Enable - From the modem setup
menu, use the UP (↑) or DOWN (↓) Arrow Keys to
highlight “Modem Enable” and press ENTER. A
window will pop up and the display will show
“modem=YES*” if the modem is enabled or
“modem=NO*” if the modem is disabled. Enable or
disable the modem by pressing the YES or NO
button then press ENTER.
4-56
B. Modem String - From the modem setup
menu, use the UP (↑) or DOWN (↓) Arrow Keys to
highlight “Modem String” and press ENTER. The
display will show “�XXXXXXXXXXX�”. Use the
alphanumeric keypad to enter the initialization string
for the modem. A maximum of 30 characters may
be entered.
• For a Zoom TM VFX modem, the string is
AT&F&D0Q1S0=1F8&Y0&W0.
• For a US Robotics Sportster TM the string is
AT&F&D0Q1S0=1&N6Y0&W0
Refer to the modem manual for other modems. The
modem needs to be set up as follows.
• Modem Attention call - AT(starts every string)
• Restore factory defaults - &F (may require
&F0)
• Assume DTR is always on - &D0
• Disable ALL responses to the com port - Q1
• Auto answer on the first ring - S0=1 (number
of rings is in Register 0)
• Connect at 9600 baud - &N6 (modem specific)
• Use memory profile 0 on reset - Y0 (modem
specific)
• Store setup in memory profile zero - &W0
The entire string may not fit in the display window.
Use the LEFT (�) and RIGHT (�) Arrow keys to
navigate through the string. When the string has
been correctly entered, press ENTER to return to
the Modem Setup menu. Press EXIT until you reach
the main programming menu. The modem string is
then sent at this time or whenever power is applied
to the recorder. Refer to Chapter 2, Paragraph 2.4
for modem connection.
Siemens AG C79000-G7374-C211-01
SIREC D Manual