Nortel Networks 4500 Series - Manual (Page 51)

10GBASE-LRM XFP specifications 51
Parameter Specifications
Receiver characteristics
Maximum receive average power for damage 1.5 dBm
Receiver reflectance (maximum) -12 dB
For more information about the conditions used for the stressed receiver
tests, and other information, see the IEEE 802.3aq standard.
The following table (from IEEE 802.3aq) describes the maximum channel
insertion loss. The channel insertion loss includes both attenuation and
connector loss (1.5 dB); therefore the maximum fiber attenuation is 0.2 to
0.4 dB.
Table 23
10GBASE-LRM channel insertion loss and range
Fiber type (core diameter and OFL bandwidth) Range Maximum channel
insertion loss
62.5
µ
m (FDDI grade)
•
160 MHz-km at 850 nm
•
500 MHz-km at 1300 nm
Up to 220 m 1.9 dB
62.5 µ m (ISO/IEC OM1)
•
200 MHz-km at 850 nm
•
500 MHz-km at 1300 nm
Up to 220 m 1.9 dB
50
µ
m (ISO/IEC OM2)
•
500 MHz-km at 850 nm
•
500 MHz-km at 1300 nm
Up to 220 m 1.9 dB
50 µ m
•
400 MHz-km at 850 nm
•
400 MHz-km at 1300 nm
Up to 100 m 1.7 dB
50
µ
m (ISO/IEC OM3)
•
1500 MHz-km at 850 nm (includes laser
launch bandwidth)
•
500 MHz-km at 1300 nm (includes laser
launch bandwidth)
Up to 220 m 1.9 dB
In the table, FDDI denotes Fiber Distributed Data Interface, ISO
denotes International Standards Organization, IEC denotes International
Electrotechnical Commission, and OFL denotes Over Filled Launch.
The following table is also based on the 802.3aq standard and specifies
the measurement conditions for each fiber type.
Nortel Ethernet Routing Switch 4500 Series
Installation — SFPs and XFPs
NN47205-301 02.01
20 October 2008
Copyright © 2007-2008 Nortel Networks
.