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Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter3 Electrical Cards
3.5.2 DS3i-N-12 Card-Le vel Indicators
•C-bit parity monitoring
•X-bit monitoring
•M-bit monitoring
•F-bit monitoring
•Far-end block error (FEBE) monitoring
•Far-end alarm and control (FEAC) status and loop code detection
•Path trace byte support with TIM-P alarm generation
You can install the DS3i-N-12 card in Slots 1 to 5 and 13 to 17. Each DS3i-N-12 port features DS-N-level
outputs supporting distances up to 137 m (450 feet). With FMEC-E3/DS3, the card supports
1.0/2.3miniature coax nonbalanced connectors.
Note The lowest level cross-connect with the XC10G card is STM-1. Lower level signals, such as E-1, DS-3,
or E-3, can be dropped. This might leave part of the bandwidth unused. The lowest level cross-connec t
with the XC-VXL-10G card and the XC-VXL-2.5G card is VC-12 (2.048 Mbps).
3.5.2 DS3i-N-12 Card-Level Indicators
Table 3 -6 describes the three LEDs on the DS3i-N-12 card facepl ate.
3.5.3 DS3i-N-12 Port-Level Indicators
You can find the status of the DS3i-N-12 card ports using the LCD screen on the ONS 15454 SDH
fan-tray assembly. Use the LCD to view the status of any port or card slot; the screen displays the number
and severity of alarms for a given port or slot. Refer to the Cisco ONS 15454 SDH Troubleshooting Guide
for a complete description of the alarm messages.
Table3-6 DS3i-N-12 Card-Level Indicators
Card-Level LEDs Description
Red FAIL LED Indicates that the card’s processor is not ready. The FAIL LED is on during
reset and flashes during the boot process. Replace the card if the red FAIL
LED persists in flashing.
ACT/STBY L ED
Green (Active)
Amber (Standby)
When the ACT/STBY LED is green, the DS3i-N-12 card is opera tional and
ready to carry traffic. When the ACT/STBY LED is amber, the DS3i-N-12
card is operational and in Standby (protect) mode.
Amber SF LED Indicates a signal failure or condition such as LOS or LO F on one or more
of the card’s ports.