INTERPRETING THE LANVIEW LEDS
EMME USER’S GUIDE
Page 7-3
RCV
A,B,C,D
(Receive)
Yellow
Light flashes to
indicate that a
segment is
receiving a
packet.
If none of the receive lights
are flashing, the EMME is
not receiving packets on
any of the segments.
Check that each module is
firmly installed in the
MMAC.
Ensure that all ports are
enabled.
CLN
(Collision)
Red
Collision
detected on a
segment. When
the LAN is
operating
normally, this
LED will flash
occasionally.
Excessive flashing, or a
solid light, indicates an
inordinate amount of
collisions.
Ensure that the SQE test is
disabled for any transceiver
connected to the EMME’s
AUI port. Check cabling for
data loops or defective
cables.
ON
(AUI
ports)
Yellow
This LED lights to
indicate which of
the two AUI ports
is active. Only
one ON LED can
be on at a time.
If this LED is not lit for
either AUI port, try re-
initializing the EMME by
pressing the reset button.
If the LEDs still do not light,
call Cabletron Technical
Support.
PWR
(Power -
AUI ports)
Green
This LED lights to
indicate that the
AUI port is
receiving power.
Both AUI ports’
PWR LEDs
should be on.
If the LED is off for either
AUI port, that port is not
receiving power.
Check the fuse associated
with the AUI port.
Figure 7-2. LANVIEW LEDs (Continued)
LED
Color
Description
Error Condition/
Recommended Action