Allied Telesis AT-LX3800U - Manual (Page 23)

AT-LX3800U Multi-Service Transport System Installation and Maintenance Guide
23
LEDs
The AT-LX3800U provides two groups of LEDs, one group for each line
card and one group for the system.
Line Card LEDs
Each line card has six LEDs, as shown in Figure 6.
Figure 6. Line Card LEDs
The line card LEDs include a RDY (Ready) LED that provides information
about the overall operation of the line card, and two groups marked TRIB
and LINE. The TRIB LEDs provide information about the tributary side of
the line card (the operation of the SFP), and the LINE LEDs display
information about the line side of the line card (the operation of the RX and
TX Wavelength Division Multiplexing (WDM) ports).
The LEDs are described in the following tables:
ˆ The RDY LED is described in Table 2.
ˆ The tributary side TX and RX LEDs are described in Table 3 on
page 24.
ˆ The line side TX and RX LEDs are described in Table 4 on page 25.
ˆ The line side Sync LED is described in Table 5 on page 27.
Table 2 describes the RDY LED on the tributary side.
Table 2. RDY LED
State Description
Flashing green Power is on, but the card is in the wrong slot.
Note that when a new version of the AT-S65
management software is being downloaded, the
RDY LED may flash on all line cards until the
downloading is complete.
Solid green Power is on and the card is in the correct slot.
Off The line card is not receiving any power.
SFP
SYNC
TX
RX
LINE
RDY
TX
RX
TRIB
124