Fiber Loss Budgets
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Introduction
This document provides the optical transmit power and receive sensitivity for fiber optic connectors on various router and switch interfaces. These numbers can be used in the calculations explained in the "Evaluating the Power Budget" section of the ATM Interface Processor (AIP) documentation. (When you view the AIP documentation, use your browser's "Find" feature to locate the desired section of the document.)
Note: The AIP documentation uses the terms PT (minimum transmitter power) and PR (minimum receiver sensitivity). In this document, the "transmit dBm min" column equals PT and the "receive dBm min" column equals PR.
Prerequisites
Requirements
There are no specific requirements for this document.
Components Used
This document is not restricted to specific software and hardware versions.
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.
Conventions
For more information on document conventions, refer to the Cisco Technical Tips Conventions.
Optical Transmit Power and Receive Sensitivity for Fiber Optic Connectors Table
| Standard | Fiber | Transmit (dBm) | Receive (dBm) | Distance Objective | ||||||||
| max | min | max | min | km | mi | |||||||
| ISO/IEC 9314-3 | MM | -14 | -20 | -14 | -31 | 2 | 1.2 | |||||
| SM cat I | -14 | -20 | -14 | -31 | 14 | 8.4 | ||||||
| SM cat II | 0 | -4 | -15 | -37 | 58 | 34.8 | ||||||
| Device | Fiber | Type | Connector | Transmit (dBm) | Receive (dBm) | Distance Objective | ||||||
| max | min | max | min | km | mi | |||||||
| Catalyst 1900c, Catalyst 2820 | MM | 100BaseFX | SC | -14 | -19 | -14 | -33.5 | |||||
| Catalyst 3000 | SM | OC-3 | SC | -8 | -14 | -8 | -32.5 | 10 | 6.2 | |||
| MM | OC-3 | SC | ||||||||||
| MM | 100BaseF | SC | full-duplex 2; half-duplex 0.4 | full-duplex 1.2; half-duplex 0.24 | ||||||||
| MM | 10BaseF | SC | 2 | 1.2 | ||||||||
| MM | 100VG | SC | ||||||||||
| Catalyst 5000 Catalyst 2900 (non-XL) Catalyst 2926 | MM | 10baseFL | ST | -12 | -20 | -12 | -32.5 | 2 | 1.2 | |||
| SM | OC-3 | SC | -8 | -14 | -8 | -32.5 | 30 | 18 | ||||
| MM | OC-3 | SC | -14 | -19 | -14 | -32.5 | 2 | 1.2 | ||||
| SM | FDDI | ST | -4 | -7 | -14 | -33 | 30 | 18 | ||||
| MM | FDDI | MIC | -14 | -18.5 | -14 | -34 | 2 | 1.2 | ||||
| Cisco 1100 concentrator Cisco 1400 concentrator | SM | FDDI | ST | -4 | -7 | -14 | -33 | 30 | 18 | |||
| MM | FDDI | MIC | -14 | -18.5 | -14 | -34 | 2 | 1.2 | ||||
| Cisco 4000 NPs | SM | FDDI | MIC | -14 | -20 | -14 | -31 | 10 | 6.2 | |||
| MM | FDDI | MIC | -10 | -16 | -10 | -27 | 2 | 1.2 | ||||
| SM | OC-3 | SC | -8 | -18.5 | -14 | -30 | 15 | 9 | ||||
| SM LR | OC-3 | SC | -3 | -36 | 20 | 12.4 | ||||||
| MM | OC-3 | SC | -15 | -28 | 3 | 1.5 | ||||||
| AIP | SM | OC-3 | ST | -8 | -15 | -14 | -31 | 14.8 | 9 | |||
| MM | OC-3 | SC | -14 | -20 | -14 | -30 | 2.4 | 1.5 | ||||
| SM | TAXI | ST | -14 | -20 | -14 | -31 | ||||||
| MM | TAXI | MIC | -10 | -16 | -10 | -27 | 2 | 1.2 | ||||
| FDDI Interface Processor (FIP) AGS+ FDDI applique | SM | FDDI | ST | -14 | -20 | -14 | -31 | 10 | 6.2 | |||
| MM | FDDI | MIC | -10 | -16 | -10 | -27 | 2 | 1.2 | ||||
| ATM Port Adapters (PAs) (ATM lite) | SM | OC-3 | SC | -8 | -15 | -8 | -31 | |||||
| MM | OC-3 | SC | -14 | -20 | -14 | -30 | ||||||
| Fast Ethernet PA | MM | FE | SC | |||||||||
| FDDI PA | SM | FDDI | SC | -14 | -19 | -14 | -31 | 15 | 9.3 | |||
| MM | FDDI | MIC | -14 | -19 | -14 | -31 | 2 | 1.2 | ||||
| Packet OC-3 Interface Processor (POSIP) | SM IR | OC-3 | SC | -8 | -15 | -8 | -31 | 15 | 9 | |||
| MM | OC-3 | SC | -14 | -18.5 | -14 | -30 | 3 | 1.5 | ||||
| Cisco 12000 | SM IR | OC-3 | SC | -8 | -15 | -8 | -28 | 15 | 9.3 | |||
| MM | OC-3 | SC | -14 | -20 | -14 | -26 | 0.5 | 0.3 | ||||
| SM IR | OC-3 | SC | -8 | -15 | -8 | -31 | 15 | 9.3 | ||||
| MM | OC-3 | SC | -14 | -20 | -14 | -26 | 0.5 | 0.3 | ||||
| LightStream 100 ATM switch | 155-Mbps SM | OC-3C | SC | -8 | -15 | 0 | -34 | |||||
| 155-Mbps MM | OC-3C | SC | ||||||||||
| 100-Mbps MM | TAXI | MIC | ||||||||||
| LightStream 1010 ATM switch | SM IR | OC-3 | SC | -8 | -15 | -8 | -30 | 15 | 9 | |||
| SM IR+ | OC-3 | SC | -3 | -8 | -3 | -32 | 30 | 18 | ||||
| SM LR | OC-3 | SC | 0 | -5 | -10 | -30 | 40 | 25 | ||||
| MM | OC-3 | SC | -14 | -20 | -14 | -30 | 2 | 1.2 | ||||
| SM IR | OC-12 | SC | -8 | -15 | -8 | -28 | 15 | 9 | ||||
| SM LR | OC-12 | SC | 2 | -3 | -8 | -28 | 40 | 25 | ||||
| MM | OC-12 | SC | -14 | -20 | -14 | -26 | 0.5 | 0.3 | ||||
| Catalyst 8540MSR ATM switch | SM IR | OC-12 | SC | -8 | -14 | -3 | -28 | 15 | 9 | |||
| MM | OC-12 | SC | -14 | -20 | -14 | -26 | 0.5 | 0.3 | ||||
| HP Gigabit Ethernet Converters (GBIC) HFBR-5601 Cisco Field-replaceable unit (FRU) WS-G5484 | 62.5/125um MM SR | 1000Base-SX | SC | -4 | -10 | 0 | -17 | 220/275 meters | 720/900 feet | |||
| 50/125um MM SR | 1000Base-SX | SC | -4 | -10 | 0 | -17 | 550 meters | 1800 feet | ||||
| HP GBIC HFCT-5611 1 Cisco FRU WS-G5486 | 62.5um MM LR | 1000Base-LX/LH | SC | -3 | -9.5 | -3 | -19 | 550 meters | 1800 feet | |||
| 50um MM LR | 1000Base-LX/LH | SC | -3 | -9.5 | -3 | -19 | 550 meters | 1800 feet | ||||
| 9/125um SM LR | 1000Base-LX/LH | SC | -3 | -9 | -3 | -19 | 10 | 6 | ||||
| Catalyst 8510 | MM | 100BaseFX | SC | -8 | -15 | -8 | -28 | .5 | 1640 feet | |||
| Catalyst 8540 | MM | 100BaseFX | MT-RJ | -8 | -15 | -8 | -28 | .5 | 1640 feet | |||
Note:
1 All GBICs use Class 1 lasers, even with multimode fiber. A Mode Conditioning Cable (MCC) is required when using multimode fiber with any LX/LH GBIC. All of these GBICs have a minimum cable length of two meters.
Related Information
Revision History
| Revision | Publish Date | Comments |
|---|---|---|
1.0 |
05-Dec-2001 |
Initial Release |
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