Specifications

Operation
RADring
Installation & Operation Manual
4-6 Diagnostics and Troubleshooting 3/11/98 12:28
TRE Modules
The TRE module LEDs are presented in Table 4-5 below.
Table 4-5 TRE Module Indicators
LED Name Color Meaning
Power Green ON when unit is powered on
MNG Green Lights when a command received from network
management is being executed on the TRE module
READY Green On when packets can be transferred
BLINKS when TREs are synchronized but remote
workstation did not require insertion
BLINKS FAST during the insertion process of a remote
workstation into the ring
4 Green Module is selected to operate at 4 Mbps rate
16 Green Module is selected to operate at 16 Mbps rate
MAIN Green Module is configured as Local
REMOTE Green Module is configured as Remote
LAN TX Yellow Packet is transmitted to LAN
LAN RX Yellow Packet received from LAN
LAN ERR Red ON during insertion into the LAN, or when
connection to LAN failed
BLINKS when LAN interface indicates an error
LINK TX* Yellow Packet transmitted to link
LINK RX* Yellow Packet received from link
LINK ERR RED BLINKS when serial link interface received error:
When the link is disconnected, or
When the TREs are synchronized and communication
errors are reported
RO Green Module is configured as Ring In
The TRE-1D and TRE-8D contain a LED for each of the two link channels.