User`s guide

Dialogic
®
System Release 6.0 PCI for Windows
®
Release Update, Rev 62 — January 30, 2008 180
Dialogic Corporation
1.50.2 Stand-Alone Configuration
A new feature is supported for system configuration, with each board functioning
independently without TDM bus connectivity. Each board is configured as a Primary
Master, deriving its clock reference either externally via its first network interface (digital
boards) or by using its internal oscillator (analog boards). No inter-board connectivity (i.e.,
routing or resource sharing) is possible. This configuration is considered a stand-alone
configuration that will eliminate a single point of failure with respect to clocking. This
feature is intended for D/41JCT-LS, D/120JCT-LS, and D/82JCT-U system configuration.
This configuration is supported only in H.100 (CT Bus) mode. Single board start/stop may
also be performed on the boards listed above. Each board can be stopped or started
without affecting clocking for any other board. An option must be selected prior to system
initialization. (See description of Using Cable Mode parameter below.)
Note: There cannot be a mixed CT Bus and non-CT Bus configuration (e.g., three boards cabled
and two boards not attached).
The following new parameters have been added.
NFASPrimary
The NFASPrimary parameter, which is only for single board start/stop capable
boards, is read-only parameter with a value of Yes or No. The default value is No. The
value is Yes if the user has configured even one span of a board to be the
NFASPrimary. Programmatically, an application can query the parameter value via
NCM_GetValueEx( ) prior to invoking NCM_StopBoard( ) on a board chosen to be
stopped. With DCM, if a board that is an NFAS Master is being stopped, a warning
dialog box is displayed and the user has the option to continue stopping the board or
to exit without stopping the board. This option is applicable to ISDN capable boards
only (e.g., D/480JCT-2T1, D/600JCT-2E1).
Using Cable Mode
The Using Cable Mode parameter has been added to the Bus-0 page under TDM
Bus in DCM. Its value is initialized to Default, which applies to a configuration where
the boards are connected using the CT Bus cable. Other possible values are Yes and
No. (Yes is the same as Default.) This parameter is intended to be set when operating
in stand-alone configuration. To operate in stand-alone configuration, this parameter
has to be set to No and the CT Bus cable physically removed. If the value is set to No
and the CT Bus cable is not removed, download will fail.
In stand-alone configuration, each board is configured as a Primary Master.
The following restrictions apply when using stand-alone configuration:
• Stand-alone configuration can be used only with the following boards: D/41JCT-
LS, D/120JCT-LS, and D/82JCT-U.
• Each board is downloaded as a Primary Master capable of producing its own
clock. References to Secondary Master, Reference Master, and Slaves are not
applicable in this configuration.
• The TDM Bus 0 information should be ignored for all clocking related information.