Cabletron Systems EMC39-12 用户手册
EMC39-12 User’s Guide
Page 4-1
CHAPTER 4
USING THE LANVIEW LED
S
This chapter describes how to use the LANVIEW Diagnostic LEDs to
monitor EMC39-12 status and diagnose problems.
monitor EMC39-12 status and diagnose problems.
Figure 4-1
LANVIEW LEDs
4.1 PWR (Power)
•
On (Green) - Indicates that the EMC39-12 is receiving power.
•
Off - Indicates that the unit is not receiving power. Check the input
power source (circuit breakers, fuse, power cord, etc.). If the
proper source is present, the problem could be with the unit.
power source (circuit breakers, fuse, power cord, etc.). If the
proper source is present, the problem could be with the unit.
4.2 XMT (Transmit)
•
On (Flashing Green) - Indicates that the unit is transmitting data
packets from the twisted pair port to the fiber optic port. The flash
of the LED is pulse stretched for viewing effect. The LED could
be on solid because of this viewing effect.
packets from the twisted pair port to the fiber optic port. The flash
of the LED is pulse stretched for viewing effect. The LED could
be on solid because of this viewing effect.
•
Off - No activity
EMC39-12
TPLINK
XMT
RCV
FOLNK
12 11 10 9 8 7 6 5 4 3 2 1
PWR
emc39bk Page 1 Monday, February 12, 1996 4:21 PM