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Crestron e-control Database Manager SW-DBM

70 •• Appendices Installation & Reference Guide — DOC. 5823

Enabled scroller signal

Description “Handshake” response to the Enable signal.

Direction

Server to System

Type

Digital

Value Asserted in response to assert of Enable signal.

De-asserted in response to de-assertion of Enable signal.

Expected Reply

None

Comments

Although this signal is often ignored, in a proper implementation, when enabling

the signal block (usually upon arrival to a certain touchscreen page), the System

should:

(1) Wait for assertion of Enabled before issuing any other scroller signals.

(2) Indicate an error condition if assertion of Enabled does not occur after a

certain amount of time (typically 30 seconds).

When disabling the signal block (usually upon arrival to a certain touchscreen

page), the System should:

(3) Wait for de-assertion of Enabled before leaving touchscreen page.

(4) Indicate an error condition if de-assertion of Enabled does not occur after a

certain amount of time (typically 30 seconds).

The demos implement (1) and (3) but not (2) and (4).

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Crestron CT-3000 Spezifikationen Seite 70