Cisco ONS 15454 EC1-12 - Page 16

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Cisco ONS 15454 Reference Manual, R4.1.x and 4.5
February 2004
Chapter 3 Electrical Cards
DS3-12E and DS3N-12E Cards
Figure 3-7 shows the DS3N-12E faceplate and a block diagram of the card.
Figure 3-7 DS3N-12E Faceplate and Block Diagram
3.6.4 DS3-12E and DS3N-12E Card-Level Indicators
Table 3-5 describes the three card-level LEDs on the DS3-12E and DS3N-12E card faceplates.
61350
B
a
c
k
p
l
a
n
e
DS3
ASIC
Flash
uP bus
SDRAM
BTC
ASIC
Line
Interface
Unit #1
main DS3-m1
protect DS3-p1
Line
Interface
Unit #1
main DS3-m12
protect DS3-p12
Processor
OHP
FPGA
BERT
FPGA
FAIL
ACT/STBY
SF
DS3 N
12E
Table 3-5 DS3-12E and DS3N-12E Card-Level Indicators
Card-Level Indicators Description
Red FAIL LED
The red FAIL LED indicates that the card’s processor is not ready. Replace
the card if the red FAIL LED persists.
ACT/STBY LED
Green (Active)
Amber (Standby)
When the ACTV/STBY LED is green, the DS3-12E card is operational and
ready to carry traffic. When the ACTV/STBY LED is amber, the DS3-12E
card is operational and in standby (protect) mode.
Amber SF LED
The amber SF LED indicates a signal failure or condition such as port LOS,
AIS, and so on.