Tektronix K1297-G20 Bedienungsanleitung PDF herunterladen (Seite 140)

Appendix A: Interfaces

A-40

K1297-G20 Monitor User Manual

Each terminal socket is equipped with two LEDs for displaying the line

status. Each of the line connectors labelled “to DTE” and “to DCE” are

assigned two LEDs. These display the line status as shown in the following

table.

Table A–24: Line status: V./X. interface module

S0 S1 Meaning

on on While booting: Reset of the interface

off off After booting: Port not in operation

alternating

with S1

alternating

with S0

Port initialized. No adapter cable connected (operational

state)

on off Port initialized. Adapter cable connected (operational

state)

on on Port initialized. Data traffic is possible (operational state):

Case 1:

– with V.35 or V.24 cable to DTE

– receiver ready

– line status Data Terminal Ready has been reached

Case 2:

– with V.35 or V.24 cable to DCE

– and receiver ready

– line status Data Set Ready has been reached

Case 3:

– with X.21 cable to DTE

– and receiver ready

– if line status Control has been reached

Case 4:

– with X.21 cable to DCE

– receiver ready

– if line status Indication has been reached

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Tektronix K1297-G20 Bedienungsanleitung Seite 140