Alcatel-Lucent 1643 AMS User's Operation Manual page 222

Equipment provisioning
Loopback state
Loopbacks are used to test the physical ports.
• No Loop is set for normal use of the physical port. The port is not looped back for
testing
• An Inloop is a loopback that routes an input signal, received at the physical port,
directly back to its corresponding output without altering the signal format. The
inloop can be used to test the connectors. Only one inloop can be provisioned at
the same time.
• An Outloop is a loopback that routes an output signal, coming from the cross
connect, at the physical port back to the corresponding input port. The Output can
be used to test how the signal passes through the system.
Cable length
For 1.5 Mbit/s (DS1) and 45 Mbit/s (DS3) signals.
For 1.5 Mbit/s signal a cable length of 0 to 200 metres can be provisioned in steps of
40 metres.
For 45 Mbit/s a cable length can be up to 136 metres (450 feet). Two levels can be
provisioned, covering the following cable length:
• 0 - 35 metres (0-120 feet)
• 35 - 136 metres (120 - 450 feet)
Degraded signal threshold
Indicates the number of errors (EB: Errored Blocks) that can occur during the given
period. If this number is exceeded and the Port Mode is set to Monitored, a signal
degrade alarm is generated. A choice can be made between two thresholds. The section
"Provision Degraded Signal Thresholds" describes the setting of these thresholds.
Auto-negotiation
It is possible to enable or disable the Auto-negotiation function at the physical layer of
the LAN port by setting the mode to enabled respectively disabled. Setting the mode to
disabled will be done when the TransLAN
supporting the auto-negotiation function. In this case the user can force the port speed
(10 Mbit/s or 100 Mbit/s) and select the half duplex or full duplex mode.
Link Pass-through
The Link pass-through mode is only supported on ports that operate on a one-to-one
association with a WAN port using GFP encapsulation. Users can enable or disable the
Link pass-through mode per port.
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™
board interworks with equipments not
Alcatel-Lucent - Proprietary
See notice on first page
Parameters for Port Provisioning
365-312-807R7.2
Issue 4, May 2007