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Cisco ONS 15454 Reference Manual, R4.1.x and 4.5
February 2004
Chapter 3 Electrical Cards
EC1-12 Card
3.3.3 EC1-12 Hosted by XC, XCVT, or XC10G
All 12 STS-1 payloads from an EC1-12 card are carried to the XC, XCVT, or XC10G card where the
payload is further aggregated for efficient transport. XC and XCVT cards can host a maximum of
288 bidirectional STS-1s. XC10G can host up to 1152 bidirectional STS-1s.
3.3.4 EC1-12 Card-Level Indicators
Table 3-2 describes the three card-level LEDs on the EC1-12 card.
3.3.5 EC1-12 Port-Level Indicators
You can obtain the status of the EC1-12 card ports using the LCD screen on the ONS 15454 fan tray. 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.
3.3.6 EC1-12 Card Specifications
Note The I-Temp symbol is displayed on the faceplate of an I-Temp compliant card. A card without this
symbol is C-Temp compliant.
The EC1-12 card specifications are listed below:
• Input:
–
Bit rate: 51.84 Mbps +/– 20 ppm
–
Frame format: SONET
–
Line code: B3ZS
–
Termination: Unbalanced coaxial cable
–
Input impedance: 75 ohms +/– 5%
–
Cable loss: Max 450 ft 734A, RG-59, 728A/Max 79 ft RG-179
–
AIS: TR-TSY-000191-compliant
Table 3-2 EC1-12 Card-Level Indicators
Card-Level Indicators Description
Red FAIL LED
The red FAIL LED signifies that the EC1-12 card’s processor is not ready.
Replace the unit if the FAIL LED persists.
Green ACT LED
The green ACT LED indicates that the EC1-12 card is operational and ready
to carry traffic.
Amber SF LED
The amber SF LED indicates a signal failure or condition such as loss of
signal (LOS), loss of frame (LOF) or high bit error rate (BER) on one or
more of the card’s ports.
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