ADTRAN 1200218L1, User Manual

Page: 76 / 122

Chapter 6. Diagnostics
6-4 OSU 300 User Manual 61200663L1-1
main
D
IAGNOSTICS
menu. These options differ depending on the
interface type of the selected port. See the following section for the
testing options available for the HSSI and V.35 ports. See Quad
DSX-1 Diagnostic Options on page 6-7 for testing options available
for the DSX-1 ports.
HSSI and V.35 Diagnostic Options
Figure 6-4 shows the available menus when the selected DTE port
is HSSI or V.35. Descriptions of the menus follow the figure.
Figure 6-4. HSSI or V.35 Port Diagnostics Menu
Data Mode
Ends a test already in progress.
Payload Loopback
This selection initiates a P
AYLOAD
L
OOPBACK
test for all data on the
selected port rather than for the entire DS3. During this test, the
data is looped back in the network direction. Perform this test to
verify the integrity of the portion of the DS3 link connecting the
selected port of the OSU 300 and the remote DTE. This test is non-
intrusive to the three other ports (see Figure 6-5 on page 6-5).
This test does not interrupt data flow from the network to the DTE, but
it does block all DTE-to-network data for the selected port.