LANVIEW LED SIGNALS
Page 4-4
Note:
“Linked” describes an electromechanical connection between a
concentrator module’s TCU port and a station. “Inserted” describes a data
connection between a station and a LAN (via the concentrator module).
4.2.2 ERR - Error
This LED should not turn on during normal operations. When lit,
this RED LED indicates a hardware failure within the module. If
this occurs, contact Cabletron Systems Technical Support.
4.2.3 BYP - Bypass
When lit, this YELLOW LED indicates that no ports are inserted into
the FNB rings. This occurs under the following conditions:
The module is executing normal start-up procedure.
At start-up, the TRXMIM will hold all of its ports in
loopback while it awaits configuration settings from a
management module. After the TRXMIM completes its
start-up procedure--either the TRXMIM has been
programmed by management or has gone to default
mode--all ports will be switched to appropriate rings and
bypass will be dependent on the following conditions.
No ports are linked to the TRXMIM.
All lobe ports are without phantom current and all Ring Out
ports are without data. There is nothing to signal the TCUs
to open.
Ports are linked, but directly bypassed.
Phantom or data is present, but management has issued
bypass commands to the specific ports to keep the TCUs
closed
Ports are linked, but the rings are bypassed from the FNB.
If the ports are not directly bypassed by management, they
are inserted into rings on the TRXMIM. However, when
TRXMIM rings are bypassed from the FNB by management
