ADC AVIDIA SWD4573I1 User Manual page 590

Initiating Communication Path Loopbacks
The following table lists supported loopbacks.
Loopback Card(s)
Type Supported
Local OC3
DS1
DS3
Line OC3
DS1/DSX-1
DS3
Payload DS1/DSX-1 For this loopback, framing for the DS1/DSX-1 port must be set to ESF.
Remote DS1/DSX-1
DS3
Initiate loopbacks from the
depending on the type of card. To open the configuration window for the card:
1 Do one of the following to open the
•
In the Site Map Navigation
•
In the Tree Navigation
Configuration
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Description
For this loopback, the signal is looped back within the line card at the
transceiver.
For this loopback, the signal is received at the line interface and is looped
back through the transmitter. The near-end interface receives the
loopback from the far-end device. You can activate this test either from
the near-end or far-end.
A line loopback tests the complete signal for the port, including channels
that are blocked by the user.
The DS1/DSX-1 card loops the payload (192 bits) through the receive
section (including the framer) and to the transmit section, returning the
payload and the newly generated ESF framing.
For this loopback, the signal is sent to the far-end where it is looped
back. This loopback tests the entire data path to the far-end.
OC3 Configuration
Port Configuration - Slot/Port Selection
window, click
window, click
.
, DS1 Configuration or DS3 Configuration
Port Configuration
Configuration Management
Avidia System Configuration and Management User Manual
window,
window:
.
, Service Provisioning , Port