User guide

Appendices 127
Appendix D: Establishing a Modem Connection (DSR1021
Switches Only)
An external modem may be attached to the DSR1021 switch. The modem may be used to access
the appliance when an Ethernet connection is not available.
A modem/PPP dial-up connection must be established before the remote operation is enabled. The
dial-up connection options should be set to 115200 baud, 8 bits, 1 stop bit, no parity and enabled
hardware flow control. The remote operations must then be enabled within the authentication time-out
specified in the Terminal Applications menu or the PPP link will be disconnected. See Chapter 4 for
more information about setting the authentication time-out.
Once a modem dial-up connection is established, you select the DSView management software
window Options - Remote Operations - Enable command to establish a DSView management
software session with the DSR1021 switch over the modem link.
When a remote operation is enabled, the DSView management software window will contain a
topology tree with the single DSR1021 switch.
The following DSView management software options are not available when using a
modem connection:
• Specification of an authentication server
• Enabling of port status polling
• Displaying server views
• Global Macros
• Privacy mode connections to the Video Viewer window
• Viewing connected users to a Video Viewer window
Before you begin
The following actions should be performed before using the DSView management software over a
modem connection:
• Ensure that the DSR1021 switch is configured. See the DSR1021 Installer/User Guide for
more information.
• Ensure that DS users have been added to the DSR1021 switch internal database. If the DSAuth
Server is not available, the appliance database is used for appliance authentication. If neither
are available, authentication cannot be performed for the DSR1021 switch, an error will
display and the appliance will not be available in the DSView management software window
topology tree. See the DSR1021 Installer/User Guide for more information.
• Ensure that an external modem is attached to the DSR1021 switch modem port. The modem
port should have auto-answer turned off (typically a modem’s default setting).
• Ensure that the PC containing the DSView management software has dial-up software and that
the software is configured properly. See your operating system documentation for
more information.