Cisco Systems XR 12000 Series Fiber-Optic Interface Cables

CiscoXR 12000 Series Router Ethernet Line Card Installation

OL-7861-01

Cabling and Specifications

Note Use only the SFP modules supplied by Cisco with your Gigabit Ethernet line card. Each SFP module

contains an internal serial EEPROM that is security-programmed by the SFP manufacturer with

information that provides a way for Cisco (through the Cisco IOS software) to identify and validate the

SFP module as a module type that was tested and qualified by Cisco to operate properly with Cisco

Gigabit Ethernet line cards. Unapproved SFP modules (those not purchased directly from Cisco) will not

work on the Gigabit Ethernet line card.

The 1-Port 10-Gigabit Ethernet line card uses single-mode fiber-optic cable. The maximum distance for

single-mode installations is determined by the amount of light loss in the fiber path. If your environment

requires the light to travel close to the typical maximum distance (as listed in Table 16 ), you should use

an optical time domain reflectometer (OTDR) to measure the power loss.

The Ethernet line card is offered in two transceiver options:

•Long haul or long wavelength, 1310 nanometers (nm) nominal, used for 1000BASE-LR links.

•Long haul or long wavelength, 1550 nm nominal, used for 1000BASE-ER links.

Table 1 5 describes the operating parameters for the transceiver options.

Table 1 6 lists the power ratings and maximum distances of both models of the Ethernet line cards. The

actual distance in any given case depends on the quality of the fiber connected to the transceiver.

Fiber-Optic Interface Cables

Depending on the line card (refer to Table 4 on page4), use a single-mode or multimode fiber-optic

interface cable with LC-type or SC-type connectors to connect an Ethernet interface on the Ethernet line

card in your Cisco XR 12000 Series Router to another Ethernet interface, router, or switch.

Note Fiber optic cables are not available from Cisco Systems. They can be purchased from cable vendors.

The following types of cables are used with Ethernet line cards to connect your router to another router

or switch:

Table15 10-Gigabit Ethernet Laser Optical Transceiver Operating Parameters

Transceiver Option Type Wavelength Cable Distance

LR Long wavelength

(single-mode long haul)

1310 nm SMF 9/125 micron 6.2 miles (10 km)

ER Long wavelength

(single-mode long haul)

1550 nm SMF 9/125 micron 24.9 miles (40 km)

Table16 Transceiver Module Power Budget and Signal Requirements

Transceiver Option

Power

Budget

Transmit

Power

Receive

Power Typical Maximum Distance

LR 6.2 dB –8.2 to +0.5 dBm at 1310 nm –14.4 to +0.5 dBm 6.2 miles (10 km)

ER 11.1 dB –4.7 to +4 dBm at 1550 nm –15.8 to –1 dBm 24.9 miles (40 km)