User`s guide

5-22 DL600E E1 Data Multiplexer UserÕs Guide
Running a Full Bandwidth or Fractional LOOP DTE
Select LOOP DTE and press ENTER to open the sub-menu.
LOOP DTE (FULL) appears.
To start a
full bandwidth test, press ENTER. When the system prompts
press
ENTER again.
Sending a Test Pattern
The DL600E unit can also send test patterns to the network port. These
patterns can be sent over the full bandwidth or over only a fraction of
the bandwidth.
While sending the test pattern, the
DL600E unit tries to lock on to the
same pattern from the remote unit. It remains in this state until it
achieves a lock or until you terminate the test.
When the DL600E unit achieves a lock with the signal from the remote
unit, it displays:
PATTRN 0
As it detects errors in the received pattern, it displays the number of
received errors on the front panel. The error count starts at
0 and can
reach a maximum of
65,535. If it loses the pattern lock, it resumes
searching.
Running a Full Bandwidth TEST PATTERN
To run a TEST PATTERN on the full bandwidth:
1 Select TEST PATTERN and press ENTER to open the menu.
2 Cycle through the options using the Up or Down Arrow and
press
ENTER to open the TEST PTRN (FULL) submenu.
LOOP DTE (FULL)
LOOP DTE
ENTER
ENTER