Nortel Networks 4500 Series - Manual (Page 53)

10GBASE-ZR/ZW XFP specifications 53
Table 25
IEEE 802.3ae 10GBASE-LR/LW XFP specifications (cont’d.)
Parameter Specifications
Maximum average launch power of OFF
transmitter
c
-30 dBm
Minimum extinction ratio 3.5 dB
RIN
12
OMA (maximum) -128 dB/Hz
Maximum optical return loss tolerance -12 dB
Maximum transmitter reflectance -12 dB
Receiver characteristics
Line rate (nominal) 10GBASE-LR 10.3125 Gbit/s ± 100 ppm (10
GbE)
10GBASE-LW 9.95328 Gbit/s ± 100 ppm
(OC-192)
Average receive power for BER 10 -12 -14.4 dBm to 0.5 dBm
Maximum average receive power for damage 1.5 dBm
Maximum receiver sensitivity in OMA -12.6 dBm
Maximum receiver reflectance -12 dB
Stressed receiver sensitivity in OMA -10.3 dBm
Receiver electrical 3 dB upper cutoff frequency 12.3 GHz
Examples of an OFF transmitter are: no power supplied to
the PDM, laser shutdown for safety conditions, activation of a
PMD_global_transmit_disable or other optional transmitter shut down
condition
10GBASE-ZR/ZW XFP specifications
The following table lists the transmit and receive specifications for the
10GBASE-ZR/ZW XFP. The reach is up to 80 km at a wavelength of 1550
nm. The part number of this XFP is AA1403006-E5.
For more information about the 10GBASE-ZX XFP, including test and
measurement information and more specifications, see the IEEE 802.3ae
standard.
CAUTION
Risk of BER increase
For proper XFP operation, ensure that at least 11 dB of
attenuation is present between the transmit and receive ports.
Nortel Ethernet Routing Switch 4500 Series
Installation — SFPs and XFPs
NN47205-301 02.01
20 October 2008
Copyright © 2007-2008 Nortel Networks
.