Black Box SM702C Manual de usuario descargar pdf (Pagina 21)

PRO SWITCHING SYSTEM

The displays include realistic front and rear views of the rack mount and the

line cards. They show the current switched state of all lines and the status of

monitored leads.

The screen displays functional switch buttons. If you click on a displayed button,

the equivalent hardware operation occurs at the site. For example, if you click on

gang-switch button A, a gang switch to A operation occurs at the rack (as long as

the key switch is in the ENABLE [unlocked] position).

The software also displays LEDs in real time. In other words, when an LED

lights at a rack, it also lights in the on-screen display.

If you click on the display of a line card, the system displays a window that

describes the line and the status of the monitored signals on the leads.

2.3.2 M

ONITORING

ESTING

Two common monitoring buses—a digital bus and an analog bus—provide access

for monitoring and testing each line with or without interrupting data flow.

Upon command, the system can connect a line on any rack to the rack’s digital

or analog monitoring bus.

When the monitoring buses of several racks are daisy-chained together, you can

create a bus definition, specifying the racks that are connected in this way. This

gives you easy access for monitoring bus operations. See Figure 2-7 for an example

of a monitoring bus.

Figure 2-7. Monitoring Bus.

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Black Box SM702C Manual de usuario Pagina 21