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Cabletron Systems EMM-E6 Ethernet User Manual

Page 148

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USING LANVIEW

EMM-E6 User’s Guide

14-3

XMT
A,B,C,D
(Transmit)

Green

LED flashes to
indicate that a
segment is
transmitting a
frame.

If not connected
to the LAN, the
LED flashes
every two
seconds to
indicate it is
transmitting
BPDU frames.

If none of the transmit LEDs is
flashing, the EMM-E6 is not
transmitting frames on any of
the segments.

Contact Cabletron Technical
Support for assistance.

CLN
(Collision)

Red

Collision
detected on a
segment. When
the LAN is
operating
properly,
occasional
flashing is
normal.

Excessive flashing, or a solid
light, indicates an inordinate
number of collisions.

Ensure that the SQE test is
disabled for any transceiver
connected to the EMM-E6’s
external channels (D, E, or F).
Check cabling for data loops or
defective cables.

Table 14-1. LANVIEW LEDs (Continued)

LED

Color

Description

Error Condition/

Recommended Action

CH1Book Page 3 Wednesday, March 20, 1996 7:48 AM