Cabletron Systems MR-2000C User Manual - page 13
7. Reconnect the terminator removed in step 6.
8. Check that the
FAULT
LED for that segment goes off.
9. Repeat steps 6 through 8 for each segment connected to the MR-2000C.
When the MR-2000C Multiport Repeater has successfully completed these tests, the repeater is ready for
normal operation. If any failures were noted, please contact Cabletron Systems Technical Support.
3.3 USING LANVIEW
. The MR-2000C Multiport Repeater uses Cabletron Systems’ built-in visual di-
agnostic and status monitoring system, LANVIEW. Rather than using a network monitor, a network trou-
bleshooter can quickly scan the LANVIEW LEDs to observe network status or to diagnose network
problems to determine which node or segment is faulty.
The following discusses the function and the purpose of each LANVIEW LED on the MR-2000C. Refer
to Figure 3-2.
Power
(PWR)
LED
When lit, this LED indicates that the MR-2000C is receiving power. If this LED is not lit, the problem
may be with the input power, or the MR-2000C.
Transceiver Power
(XCVR PWR)
LED
When lit, this LED indicates that the MR-2000C is providing power to the external transceiver con-
nected to the MR-2000C. If this LED is not lit, power is not being provided to the transceiver and the
problem may be in the MR-2000C.
Jam
(JAM)
LED
This LED normally flashes on and off to indicate that the MR-2000C is propagating a collision from
the segment on which the collision is occurring to the other segments connected to the repeater. When
this LED flashes, a pattern of 1,0 is sent to each segment to indicate that a collision is occurring on one
of the segments. What will be observed is that the
COLLISION
LED for one segment will flash, in-
dicating a collision, causing the
JAM
LED to flash.
NOTE
There is one
RECEIVE
,
COLLISION
, and
FAULT
LED for each
port on the MR-2000C.
Receive
(RECEIVE)
LED
This LED normally flashes on and off to indicate that the MR-2000C is repeating the data packet being
received from that segment. The rate at which the LED flashes will increase as network activity in-
creases.