Paradyne 7112 User Manual download pdf (Page 69)

Testing

7-11

7112-A2-GB20-20

March 1998

Send FT1 Up/Down Sequences

The local DSU/CSU can send an ANSI T1.403 (Annex B) Up or Down sequence

to request the start or stop of a Data Channel Loopback on a remote DSU/CSU.

The DSU/CSU can send:

H In-band ANSI T1.403 (Annex B) Up (activation) code to request the start of a

Data Channel Loopback at the remote DSU/CSU.

H In-band ANSI T1.403 (Annex B) Down (deactivation) code to request

termination of a Remote Data Channel Loopback at the remote DSU/CSU.

" Procedure

To send an FT1 Up or Down sequence to a remote unit:

1. Position the cursor at the Up or Down selection next to Send FT1 Loopback

on the Data Port Tests screen.

2. Press the space bar to select the desired code (Up or Down).

3. Position the cursor at the Start command next to Send FT1 Loopback on the

Data Port Tests screen.

4. Press Enter.

The Start command is changed to Sending. The Up or Down sequence

transmission stops automatically after 10 seconds. You cannot stop the

sequence manually.

The Send FT1 Up/Down test cannot be started when any loopback or Send

Pattern test is active on the network interface.

Test Patterns for the DTE

This test sends a QRSS or 511 test pattern, or monitors a QRSS or 511 test

pattern over the User Data Port interface.

" Procedure

To run a Send Pattern test:

1. Position the cursor at the QRSS or 511 pattern selection next to Start QRSS

on the Data Port Tests screen.

2. Press the space bar to select the desired test pattern (QRSS or 511).

3. Position the cursor at the Start command next to the desired Send pattern.

4. Press Enter.

The Start command is changed to Stop. If you want to manually stop the test,

verify that the cursor is positioned at the Stop command.

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Paradyne 7112 User Manual Page 69