Zhone IMACS 8000, User Manual

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14-40 Data Cards
Model No.
Running Head
HSU Card User Screens and Settings HSU Card
This type of dialing is called “master” dialing. With master dialing, the DTE will signal the
Model 821360 HSU master port (via RS366 or V.25bis) that the following commands should
be applied to another HSu port, not to itself. Once the master HSU port receives the command
that says “apply all subsequent commands received on this dialing port to a different HSU
port,” the master port will process dialing information for another HSU port until it receives
a command that says, “apply all subsequent commands to yourself.”
A detailed description of both RS366 and V.25bis dialing command structures are provided on
the following pages.
14.3.10 Dialing with RS366 Commands
When the system is equipped with a Model 821360 HSU card, two dialing ports are available
for use by that card. Those RS366 ports can also be made available to all HSU cards in the
system regardless of the model number using the “Master Dialing” feature.
DTE, such as FAX machines, video codecs and other equipment with dialing capability can
send dialing commands to the system using these special dialing ports. The commands are
either stores in call profiles or RS366 standard commands using the keypad.
These commands are used to dial a call, call profiles, change the amount of channels required
for the session, change service and call types, establish and clear loopback modes and set
protocol specific parameters.
The dialing commands are approved by the SDSAF (Switched Digital Services Applications
Forum) Subcommittee on DTE-DCE Interfaces (an industry group that has defined extensions
to the standard RS366 specifications to support dialing of switched digital services).
Additionally, the system has implemented several extensions to be used specifically with call
profile information.
Since the RS366 protocol only allows the transmission of digits, * and #, the command
structure must be made up of these characters.
14.3.10.1 Command Types
There are five specific commands available that will override the call profile parameters of the
selected HSU port. Each command will be covered as a specific section.
• Basic Change
• Call Profile Loading
• Loopback Management
• Call Profile Change
• Master Dialing