Ds3 Uni Module Loopbacks; E3 Uni Module Loopbacks - 3Com 3C63400-3AC-C - PathBuilder S700 Switch Reference Manual

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HAPTER ATH UILDER
DS3 UNI Module
Loopbacks
E3 UNI Module
Loopbacks
S700 D P
IAGNOSTICS AND ERFORMANCE
5 Enter the number corresponding to the type of loopback you want to configure.
The Loopback menu for the selected card type now lists the type of loopback you
have selected.
The following subsections describe the available loopbacks for each of the
PathBuilder S70000 interfaces.
The DS3 UNI module supports the following loopbacks:
Local Card—Loops the transmit DS3 output on the receive side. All cells coming
from the DS3 card are looped through the backplane and back to the DS3 card.
The transmitted data will continue to go on the output.
Network Line—Loops the DS3 received data back on the output side after the
digital data has been recovered.
Network Card—Loops the DS3 received cell payload back toward the line output.
Figure 168 illustrates the DS3 loopback options.
Figure 168 DS3 UNI Loopback Options
Network Side
Network
Line
The E3 UNI module supports the following loopbacks:
Local Card—Loops the transmit E3 output on the receive side. All cells coming
from the E3 port card are looped through the backplane and back to the E3 port
card. The transmitted data will continue to go on the output.
Network Line—Loops the E3 received data back on the output side after the
digital data has been recovered.
Network Card—Loops the E3 received cell payload back toward the line output.
M
ONITORING
DS3 Interface
Network Card
Local Card
Bus Side