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Chapter 3 Cisco 10000 Series Router Shared Port Adapters
2-Port Gigabit Ethernet SPA Overview
Table 3-3
Specification
RX overload
XFP Module Specifications for 10-Gigabit Ethernet SPA (continued)
Maximum receiver power damage
Description
XFP-10GLR-OC192SR: 0.5 dBm
XFP-10GER-OC192IR: –1.0 dBm
XFP-10GLR-OC192SR: +5 dBm
XFP-10GER-OC192IR: +5 dBm
XFP Port Cabling Specifications
Table 3-4 shows the port cabling specifications for an XFP module.
Table 3-4 XFP Port Cabling Specifications
XFP Module Wavelength
XFP-10GLR-OC192SR 1310 nm
XFP-10GER-OC192IR 1550 nm
Fiber Type
SMF
SMF
2-Port Gigabit Ethernet SPA Overview
The following sections describe the 2-Port Gigabit Ethernet SPA:
•
•
2-Port Gigabit Ethernet SPA LEDs, page 3-19
SFP Module Cabling and Connection Equipment, page 3-22
2-Port Gigabit Ethernet SPA LEDs
The 2-Port Gigabit Ethernet SPA has two types of LEDs. There is an A/L LED for each port and. one
STATUS LED as shown in
.
Figure 3-5 2-Port Gigabit Ethernet SPA Faceplate
1 3
1 0
A/L
0
A/L
1
A/L A/L
SPA-2X1GE
ST
AT
US
2
1 A/L LED (for each interface)
3 Two RJ45 (copper) ports
2 STATUS LED (for entire SPA)
The 2-Port Gigabit Ethernet SPA LEDs are described in
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Chapter 3 Cisco 10000 Series Router Shared Port Adapters
2-Port Gigabit Ethernet SPA Overview
Table 3-5
LED Label
A/L
STATUS
2-Port Gigabit Ethernet SPA LEDs
Color
Off
Green
Amber
Off
Green
Amber
State
Off
On
On
Off
On
On
Meaning
Port is not enabled.
The port is enabled and the link is up.
The port is enabled and the link is down.
SPA power is off.
SPA is ready and operational.
SPA power is on and good, and SPA is being configured.
2-Port Gigabit Ethernet SPA Cables and Connectors
The interface connectors on the 2-Port Gigabit Ethernet SPA are two individual fiber optic receivers that support two SFP modules Each port can send and receive traffic using the optical fiber connections. In addition there are two built-in copper RJ 45 ports provided on the 2-port Gigabit Ethernet SPA as shown in
. A combination of these Gigabit Ethernet ports is permitted, limited to a total of 2 Gigabit
Ethernet ports (both copper, both optical, or one copper and one optical).
SFP Module Connections
The small form-factor pluggable (SFP) module is an input/output (I/O) device that plugs into the Gigabit
Ethernet optical slots on the 2-Port Gigabit Ethernet SPA, linking the port with a 1000BASE-X fiber-optic network.
Note The 2-Port Gigabit Ethernet SPA will only accept the SFP modules listed as supported in this document.
An SFP check is run every time an SFP module is inserted into the 2-Port Gigabit Ethernet SPA and only
SFP modules that pass this check will be usable by the 2-Port Gigabit Ethernet SPA.
SFP modules exist for technologies other than Gigabit Ethernet and for products other than the 2-Port
Gigabit Ethernet SPA. However, the information in this document pertains only to SFP modules that plug into the 2-Port Gigabit Ethernet SPA ports.
The SFP module has a receiver port (RX) and a transmitter port (TX) that compose one optical interface.
and
provide SFP module information and specifications.
Table 3-6 SFP Module Options
SFP Module
Product Number SFP Module
SFP-GE-S Short wavelength
(1000BASE-SX)
SFP-GE-L Long wavelength/long haul
(1000BASE-LX/LH)
Description
Contains a Class 1 laser of 850 nm for
1000BASE-SX (short wavelength) applications.
Contains a Class 1 laser of 1310 nm for
1000BASE-LX/LH (long wavelength) applications.
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Chapter 3 Cisco 10000 Series Router Shared Port Adapters
2-Port Gigabit Ethernet SPA Overview
Table 3-6 SFP Module Options
SFP Module
Product Number SFP Module
SFP-GE-Z
SFP-GE-T
Extended distance
(1000BASE-ZX)
RJ-45 copper SFP transceiver
(1000BASE-T)
Description
Contains a Class 1 laser of 1550 nm for
1000BASE-ZX (extended wavelength) applications.
Provides full-duplex Gigabit Ethernet connectivity to high-end workstations and between wiring closets over an existing copper network infrastructure.
Table 3-7
Specification
Wavelength
Operating case temperature range
SFP Module Specifications
Cabling distance (maximum)
Storage temperature range
Supply voltage range
Description
SFP-GE-S: 770 to 860 nm
SFP-GE-L: 1270 to 1355 nm
SFP-GE-Z: 1500 to 1580 nm
SFP-GE-T: N/A
SFP-GE-S: 500 m on 50/125um MMF; 300 m on 62.5/125um MMF
SFP-GE-L: 6.2 miles (10 km)
SFP-GE-Z: 49.7 miles (80 km)
SFP-GE-T: 328 ft. (100 m)
SFP-GE-S: 23 to 185 degrees F (–5 to 85 degrees C)
SFP-GE-L: 23 to 185 degrees F (–5 to 85 degrees C)
SFP-GE-Z: 23 to 185 degrees F (–5 to 85 degrees C)
SFP-GE-S: –40 to 185 degrees F (–40 to 85 degrees C)
SFP-GE-L: –40 to 185 degrees F (–40 to 85 degrees C)
SFP-GE-Z: –40 to 185 degrees F (–40 to 85 degrees C)
SFP-GE-S: 3.1 to 3.5 V
SFP-GE-L: 3.1 to 3.5 V
SFP-GE-Z: 3.1 to 3.5 V
SFP-GE-S Modules
The 1000BASE-SX (short wavelength) module operates on standard multimode fiber-optic link spans of up to 500 m on 50/125um MMF and 300 m on 62.5/125um MMF.
SFP-GE-L Modules
The 1000BASE-LX/LH (long wavelength/long haul) module interfaces fully comply with the IEEE
802.3z 1000BASE-LX standard. However, their higher optical quality allows them to reach 6.2 miles (10 km) over single-mode fiber (SMF) versus the 3.1 miles (5 km) specified in the standard.
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Chapter 3 Cisco 10000 Series Router Shared Port Adapters
2-Port Gigabit Ethernet SPA Overview
SFP-GE-Z Modules
The 1000BASE-ZX (extended wavelength) module operates on ordinary single-mode fiber-optic link spans of up to 49.7 miles (80 km). Link spans of up to 62.1 miles (100 km) are possible using premium single-mode fiber or dispersion-shifted single-mode fiber (premium single-mode fiber has a lower attenuation per unit length than ordinary single-mode fiber; dispersion-shifted single-mode fiber has both lower attenuation and less dispersion).
The 1000BASE-ZX module must be coupled to single-mode fiber-optic cable, which is the type of cable typically used in long-haul telecommunications applications. The 1000BASE-ZX module will not operate correctly when coupled to multimode fiber, and it is not intended to be used in environments where multimode fiber is frequently used (for example, building backbones, or horizontal cabling).
The 1000BASE-ZX module is intended to be used as a Physical Medium Dependent (PMD) component for Gigabit Ethernet interfaces found on various switch and router products. It operates at a signaling rate of 1250 Mbaud, transmitting and receiving 8B/10B encoded data.
When shorter lengths of single-mode fiber are used, it may be necessary to insert an in-line optical attenuator in the link to avoid overloading the receiver.
• Insert a 10-dB in-line optical attenuator between the fiber-optic cable plant and the receiving port on the 1000BASE-ZX module at each end of the link whenever the fiber-optic cable span is less than
15.5 miles (25 km).
• Insert a 5-dB in-line optical attenuator between the fiber-optic cable plant and the receiving port on the 1000BASE-ZX module at each end of the link whenever the fiber-optic cable span is equal to or greater than 15.5 miles (25 km) but less than 31 miles (50 km).
SFP-GE-T Modules
The SFP-GE-T (1000BASE-T copper SFP module) provides full-duplex Gigabit Ethernet connectivity to high-end workstations and between wiring closets over an existing copper network infrastructure. The
SFP-GE-T maximum cabling distance is 328 feet (100 m).
SFP Module Cabling and Connection Equipment
provides cabling specifications for the SFP modules that can be installed on the 2-Port Gigabit
Ethernet SPA. Note that all optical SFP ports have LC-type connectors.
The minimum cable distance for the SFP-GE-S is 6.5 feet (2 m), and the minimum link distance for the
SFP-GE-Z is 6.2 miles (10 km) with an 8-dB attenuator installed at each end of the link. Without attenuators, the minimum link distance for the SFP-GE-Z is 24.9 miles (40 km).
Table 3-8 SFP Module Port Cabling Specifications
SFP Modules
SFP-GE-S
Wavelength
(nm)
850
Fiber Type
MMF
1
Core Size
(micron)
62.5
62.5
50.0
50.0
Modal
Bandwidth
(MHz/km)
160
200
400
500
Maximum
Cable Distance
722 ft (220 m)
984 ft (300 m)
1640 ft (500 m)
1804 ft (550 m)
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