Nortel Networks 1000BASE-SX - Manual (Page 23)

Selecting an SFP 23
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 3
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)
(see Note 1) AA1419025-E5 to
AA1419032-E5 1470 nm to 1610 nm, up to 40 km
1000BASE-ZX CWDM (LC)
(see Note 2) AA1419033-E5 to
AA1419040-E5 1470 nm to 1610 nm, up to 70 km
Note 1: Use the E6 version (AA1419053-E6 to AA1419060-E6). See Table 4 "SFP models with DDI
capability" (page 24) . The E6 version addresses a latching issue with the E5 version.
Note 2: Use the E6 version (AA1419061-E6 to AA1419068-E6). See Table 4 "SFP models with DDI
capability" (page 24) . The E6 version addresses a latching issue with the E5 version.
For specifications for these SFPs, see "SFP specifications" (page 45) .
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, GBIC, and OADM Hardware Components
NN46220-301 01.01 Standard
5.0 1 May 2008
Copyright © 2008, Nortel Networks
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