Card Descriptions
Table 129 20-Port Gigabit Ethernet 1020 Card Specifications (CWDM- and DWDM-Based)
Specification CWDM DWDM
Protection None None
Interface 1000Base-CWDMnnnn
(2)
1000Base-DWDMITUnn
(3)
Line code 8B/10B 8B/10B
Flow control negotiation
(4)
Yes Yes
Transceiver type
(5)
SFP SFP
Compliance ITU-T G.694.2 ITU-T G.694.1
(1) Each optical port has separate connectors for the transmit (Tx) and receive (Rx) circuits.
(2) CWDM nominal wavelengths are 1471, 1491, 1511, 1531, 1551, 1571, 1591, and 1611; specified in ITU G.694.2.
(3) The range of DWDM ITU channels is 17 to 60; see the ITU DWDM Transmit Frequencies and Wavelengths table
for the frequency and wavelength of each ITU channel; specified in ITU G.694.1.
(4) The extent of the support for flow control depends on the release of the SmartEdge OS.
(5) The 20-port GE1020 card requires two adjacent slots for the SFP transceivers.
6.15.1 Status LEDs
Figure 49 Status LEDs on 20-Port Gigabit Ethernet 1020 Card
Table 130 Equipment LEDs on 20-Port Gigabit Ethernet 1020 Card
Label Activity Color Description
On Red A failure exists on the card.
(1)
FAIL
Off None No failure exists on the card.
14527/153 30-CRA 119 1170/1 Uen A | 2010-04-09
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