Avaya 6424D+M Bedienungsanleitung PDF herunterladen (Seite 57)

Pin 20 — Data Terminal Ready (CD)

This circuit allows the attached terminal to control the ADM’s connection to the network. When

the DTR option is set to FOLLOW, the ADM requires an ON condition to interact with the

attached terminal or to initiate or maintain a data connection or test sequence (except the local

self-test). If the attached terminal drops DTR for more than 50 milliseconds during data call

setup, while in the data transfer mode, or during a test sequence, the ADM clears the call or

terminates the test.

When the DTR option is set to IGNORE, the ADM ignores the DTR lead. Thus, dropping the

DTR lead will not cause a call to be cleared.

Pin 22 — Ring Indicator (CE)

A pulsed signal appears on this circuit when the data terminal receives an incoming data call.

This signal is maintained until the data terminal answers or clears the call, or until the network

clears the call attempt. The cadence is designed to simulate ringing: 2 seconds on and 4 seconds

off. The initial pulse remains on for a minimum of 1 second.

Technical Information 6-3

1 2 ... 52 53 54 55 56 57 58 59 60 61 62 ... 73 74

Keine Kommentare

Avaya 6424D+M Bedienungsanleitung Seite 57