![](/images/new-backgrounds/1158944/15894497x1.webp)
Cabling and Specifications
The following SFP module options are available for a Gigabit Ethernet line card:
•
•
•
•
The SFP modules have LC connectors. Different SFP module options allow you to customize the physical interfaces on the line card by using both types of modules on the same line card. The only restriction is that each port must match the specifications on the other end of the cable (short or long wavelength), and must not exceed the recommended cable length for reliable communication.
Table 13 describes the operating parameters for the supported SFP modules.
Table 13 Gigabit Ethernet SFP Module Power Budget and Signal Requirements
|
| Power | Transmit | Receive | Receive | Typical Maximum |
SFP | Transceiver | Budget | Power | Power | Sensitivity | Distance |
|
|
|
|
|
|
|
| Short wavelength | 7.5 dB | 984 feet (300 meters) | |||
| Multimode, |
| at 850 nm2 |
|
|
|
|
|
|
|
|
| |
| short haul |
|
|
|
|
|
|
|
|
|
|
|
|
Long wavelength | 8.0 dB |
| 32,808 feet (10,000 meters) | |||
|
| at 1310 nm |
|
|
| |
|
|
|
|
|
| |
| long haul |
|
|
|
|
|
|
|
|
|
|
|
|
8 dB |
|
| ||||
|
| at 1310 nm |
|
|
| |
|
|
|
|
|
|
|
| 23 dB | 0 to +5 dBm |
| |||
|
| at 1550 nm |
|
|
| |
|
|
|
|
|
|
|
1.dBm = decibels referenced to 1 milliwatt
2.nm = nanometer
3.Not valid for
4.
5.
Table 14 Gigabit Ethernet Laser Optical Transceiver (SFP) Module Operating Parameters
SFP Module | Type | Wavelength | Cable | Distance |
|
|
|
|
|
Short wavelength | 850 nm | MMF 62.5/125 micron | 722 feet (220 m) | |
| (multimode short haul) |
|
|
|
|
| MMF 50/125 micron | 1640 feet (500 m) | |
|
|
| ||
|
|
|
|
|
| Long wavelength | 1310 nm | SMF 9/125 micron | 32,808 feet (10,000 m) |
|
|
|
| |
| haul) |
|
|
|
|
|
|
|
|
Cisco XR 12000 Series Router Ethernet Line Card Installation
| 49 |
| |
|
|