Zhone IMACS 8000, User Manual

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Data Cards 14-43
HSU Card HSU Card User Screens and Settings
14.3.13 Loopback Management
The RS366 command structure allows the user to control the loopback state for active calls
within the system. The user can start a call with one RS366 command string and place a
loopback on it with another command. Loopbacks can only be initiated on active calls. Table
14-16 shows the loopback commands.
The command string for loopback management is: [escape character] [loopback code].
Table 14-16. Call Profile Parameter Numbers and Values
The information presented in this section is listed in the RS366 dialing matrix shown in Table
14-18.
Note: In order to make use of the loopback management feature, your DTE must support the
generate call command while connected and in use.
14.3.14 Call Profile Changes
Another application for RS366 dialing is modifying call profile parameters that cannot be
changed by the Basic Dialing commands. The system uses this application for making changes
to all of the fields in the call profiles embedded in the system. A different command string is
used to make these changes.
The command string is: [escape character] [64] [parameter number] [parameter value] where
the parameters are found on the call profile screen of the Interface card.
Table 14-17 shows the Call Profile parameter name, parameter number and parameter value
to be used with this command.
Loopback Code Meaning
70 Clear all loopbacks
71 Loopback #1 enable (i.e. DTE loopback)
72 Loopback #2 enable (i.e. local network loopback)
73 Loopback #3 enable (i.e. remote network loopback)