Ds3I-N-12 Card-Level Indicators - Cisco ONS 15454 Reference Manual
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3.8 3.7.2 DS3i-N-12 Card-Level Indicators
3.7.2 DS3i-N-12 Card-Level Indicators
Table 3-10
Table 3-10
Card-Level LEDs
Red FAIL LED
ACT/STBY LED
Green (Active)
Amber (Standby)
Amber SF LED
3.7.3 DS3i-N-12 Port-Level Indicators
You can find the status of the DS3i-N-12 card ports by using the LCD screen on the ONS 15454 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 Troubleshooting Guide for a
complete description of the alarm messages.
3.8 DS3-12E and DS3N-12E Cards
For hardware specifications, see the
Note
page
The ONS 15454 DS3-12E card provides 12 Telcordia-compliant GR-499 DS-3 ports per card. Each port
operates at 44.736 Mbps over a single 75-ohm 728A or equivalent coaxial span. The DS3-12E card
provides enhanced performance monitoring functions. The DS3-12E can detect several different errored
logic bits within a DS3 frame. This function allows the ONS 15454 to identify a degrading DS3 facility
caused by upstream electronics (DS3 Framer). In addition, DS3 frame format autodetection and J1 path
trace are supported. By monitoring additional overhead in the DS3 frame, subtle network degradations
can be detected.
The following list summarizes DS3-12E card features:
•
•
•
•
•
•
•
Cisco ONS 15454 Reference Manual, R7.0.1
3-20
describes the three LEDs on the DS3i-N-12 card faceplate.
DS3i-N-12 Card-Level Indicators
Description
Indicates that the card processor is not ready. This LED is on during reset.
The FAIL LED flashes during the boot process. Replace the card if the red
FAIL LED persists in flashing.
When the ACT/STBY LED is green, the DS3i-N-12 card is operational and
ready to carry traffic. When the ACT/STBY LED is amber, the DS3i-N-12
card is operational and in standby (protect) mode.
Indicates a signal failure or condition such as LOS or LOF on one or more
card ports.
A-22.
Provisionable framing format M23, C-bit or unframed
Autorecognition and provisioning of incoming framing
P-bit monitoring
C-bit parity monitoring
X-bit monitoring
M-bit monitoring
F-bit monitoring
"A.5.7 DS3-12E and DS3N-12E Card Specifications" section on
Chapter 3
Electrical Cards
OL-9217-01
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