10gbase-lrm xfp specifications – Nortel Networks 4500 Series User Manual
Page 50
50
XFP specifications
The stressed sensitivity values are for system level BER measurements,
which include the effects of CDR circuits. Nortel recommends that you
allocate at least 0.4 dB additional margin if you make component level
measurements without the effect of CDR circuits.
10GBASE-LRM XFP specifications
The 10GBASE-LRM XFP provides 10 GbE service at a wavelength
of 1310 nm. This XFP can attain a reach of up to 220 m on 62.5
µ
m multimode fiber. This XFP provides built-in electronic dispersion
compensation.
The following table lists the transmitter and receiver specifications for the
10GBASE-LRM XFP. These parameters are as specified by the IEEE
802.3aq-2006 standard. The part number of this XFP is AA1403007-E6.
In this table, note that the OMA, average launch power, and peak power
specifications apply at TP2, after patch cord loss is accounted for.
Table 22
IEEE 802.3aq 10GBASE-LRM XFP specifications
Parameter
Specifications
Data rate
10.0 Gbit/s
Line rate (64B/66B code)
10.3125 Gbit/s ± 100 ppm
Center wavelength range
1260 to 1355 nm; 1310 nm nominal
Distance
Up to 220 m, see
channel insertion loss and range" (page 51)
Link optical power budget
1.7 to 1.9 dB, see
channel insertion loss and range" (page 51)
Maximum transmitter waveform and dispersion
penalty (TWDP)
4.7 dB
Transmitter characteristics
Average launch power
-6.5 to 0.5 dBm
Peak launch power
3 dBm
Root-mean-square spectral width
2.4 to 4 nm
Launch power in OMA
-4.5 to 1.5 dBm
Maximum average launch power of OFF
transmitter
-30 dBm
Minimum extinction ratio
3.5 dB
Maximum relative intensity noise at
OMA—RIN
12
OMA
-128 dB/Hz
Optical return loss tolerance (minimum)
-20 dB
Nortel Ethernet Routing Switch 4500 Series
Installation — SFPs and XFPs
NN47205-301
02.01
20 October 2008
Copyright © 2007-2008 Nortel Networks
.