Allied Telesis AT-MCF2300 - Manual (Page 50)

Chapter 3: AT-MCF2012LC, AT-MCF2012LC/1 and AT-MCF2032SP Modules
50 Section I: Features
HBI and HBO
Heartbeat LEDs
The AT-MCF2032SP Module has two heartbeat LEDs labeled HBI and
HBO. If the chassis has a management or stacking module, the LEDs
flash as the media converter module transmits or receives packets over
the backplane in the chassis.
Figure 20. HBI and HBO Heartbeat LEDs on the AT-MCF2032SP Module
Channel LEDs
The modules have channel LEDs that are used together with the Mode
button to change the operating modes of the channels and to view duplex
modes and collisions. The channel LEDs on the AT-MCF2012LC/1 Media
Converter Modules are located below the fiber optic ports and are labeled
“CH.” The channel LEDs on the AT-MCF2012LC Module are the number
row of LEDs below the SFP slots. For more information on these LEDs,
refer to “Mode Button” on page 51.
Steady Amber The module is storing a new version of its
management software in flash memory.
Caution
Do not power off the chassis or remove the
module when the LED is amber. Doing so
may damage the module.
Table 12. RDY/FLT LED
State Description
CH
CH
CDC
FDC
LT
ML
L A 1
L A 2
3
4
5
6
7
8
9
10
11
12
L A
L A
A
T -MCF2032SP
CLASS 1 LASER PRODUCT
SML
1 2 3 4 5 6 7 8 9 10 11 12 RDY/FLT HBI HBO
CH
ML
A
SML
1 RDY/FLT HBI HBO
1386