Black Box SW544A-M, Manual, Page: 34 / 74

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CHAPTER 5: Configuration
72. Initialization String: Defines a command string sent to initialize a modem
to settings required by your application. (Up to 48 characters; defaults:
port 1 through 7 = AT& C1$ D2S0=1; port 8 = ATM0& C1$ D2S0=1.)
73. Hang-Up String: Although the Serial Port Manager pulses the DTR line to
hang up an attached modem, the hang-up string is often useful for
controlling modems that do not use the DTR line. (Up to 48 characters;
default = undefined.)
NOTES
When communicating with the Serial Port Manager via modem,
communication parameters don’t change until you exit from Command
mode and disconnect the modem.
For a list of basic AT ® commands for the Serial Port Manager’s internal
modem, please refer to Section 6.2.
8. Supervisor Mode: Permits or denies access to Supervisor mode. When
enabled (permit) and the valid supervisor password is entered, the port allows
access to supervisor-level commands. When disabled (deny), the port may not
enter Supervisor mode even when the supervisor password is entered.
(Default = Permit.)
NOTE
The Supervisor mode cannot be disabled at ports 1 or 2.
9. Logoff Character: Defines the logoff character for this port. The logoff
character determines the command(s) or character(s) that must be issued at
this port in order to disconnect from a second port (resident disconnect).
(Default =
^X ( [Ctrl] plus [X] ) .)
NOTE
When redefining the logoff character, select a character that does not
normally occur in your data. This prevents the Serial Port Manager from
accidentally disconnecting ports in the middle of a data transfer. For
example, if the logoff character is defined as “s,” then the ports
disconnect whenever the letter s is detected.
10. Sequence Disconnect: Enables/disables and configures the resident
disconnect command. This prompt offers the option to either disable the
sequence disconnect or select a one-character format or a three-character
format. (Default = One Character.)