Encapsulation Method Support; Using Statistics To Estimate Link Loss And Power Budget - Cisco 7300-1OC12POS-MM Installation And Configuration Manual

Chapter 1 Overview
Class 1 laser product (single-mode).
Warning
The optical fiber connectors must be free of dust, oil, or other contaminants. Carefully
Note
clean the optical fiber connectors using an alcohol wipe or other suitable cleanser.
Figure 1-10 Transmit (TX) and Receive (RX) Ports on the OC12 POS Line Card
7300-2OC12POS-MM
2-PORT OC-12 POS MM

Encapsulation Method Support

The following encapsulation methods are supported by the OC12 POS line card:
•
•
•

Using Statistics to Estimate Link Loss and Power Budget

Statistical models more accurately determine the power budget than standard worst-case methods.
Determining the link loss with statistical methods requires accurate knowledge of variations in the data
link components. Statistical power budget analysis is beyond the scope of this document. For further
information, refer to ITU-T standards and your equipment specifications.
The following publications contain information on determining attenuation and power budget:
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•
OL-3437-01
TX 0 RX
OIR
STATUS
CARRIER/ ACTIVE/
ALARM LOOPBACK
High-Level Data Link Control (HDLC)
Frame Relay
PPP
T1E1.2/92-020R2 ANSI, the Draft American National Standard for Telecommunications entitled
Broadband ISDN Customer Installation Interfaces: Physical Layer Specification.
Power Margin Analysis, AT&T Technical Note, TN89-004LWP, May 1989.
TX 1 RX
CARRIER/ ACTIVE/
ALARM LOOPBACK
OC12 Packet Over SONET Line Card Installation and Configuration
Encapsulation Method Support
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