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Selecting an SFP 25
The SFPs described in this section do not have Digital Diagnostic Interface
capability, and are RoHS -E5 compliant.
CWDM SFPS are also supported. CWDM technology consolidates
multiple optical channels on a common optical fiber. CWDM uses multiple
wavelengths to expand available bandwidth.
CWDM SFPs are designed to support high speed data communications
for Metropolitan Area Networks (MANs). The system uses a grid of eight
CWDM optical wavelengths in both ring and point-to-point configurations.
All components are color-coded by wavelength.
ATTENTION
The attainable cable length can vary depending on the quality of the fiber optic
cable used.
Table 2
SFP models without DDI support
Model and connector Product number Description
1000BASE-SX (LC) AA1419013-E5 850 (nm), up to 275 or 550 m
1000BASE-SX (MT-RJ) AA1419014-E5
850 nm, up to 275 or 550 m
1000BASE-LX (LC) AA1419015-E5 1310 nm, up to 10 km
1000BASE-XD CWDM (LC) AA1419025-E5 to
AA1419032-E5
1470 nm to 1610 nm, up to 40 km
1000BASE-ZX CWDM (LC) AA1419033-E5 to
AA1419040-E5
1470 nm to 1610 nm, up to 70 km
For specifications for these SFPs, see "SFP specifications" (page 41).
Procedure job aid: SFP models with DDI support
Digital Diagnostic Monitoring (DDM) allows the Metro Ethernet Routing
Switch 8600 to monitor SFP laser operating characteristics. Metro Ethernet
Routing Switch 8600 support for Digital Diagnostic Interfaces (DDI—an
interface that supports DDM) involves data collection and alarm and warning
monitoring. Static data collection includes the SFP vendor information, DDI
support information, and DDI alarm and warning threshold values. Dynamic
data collection includes temperature, supply voltage, laser bias current,
transmit power, and receive power. DDM works at any time during active
laser operation without affecting data traffic.
The warning and alarm status bits are only checked during initialization
and during requests for dynamic data. If an alarm or warning is asserted
or cleared, a message is logged and a trap is generated. DDM warning
Nortel Metro Ethernet Routing Switch 8600
Installation — SFP, XFP, and GBIC Hardware Components
NN46220-301 02.04 Standard
4.2 14 February 2008
Copyright © 2008, Nortel Networks
.