Nortel 8300 安装指导
1000BASE-BX DDI SFP specifications
37
As shown in the previous figure, the transmit (Tx) and receive (Rx) paths
share the same fiber by using two different wavelengths. One model
transmits at 1310 nm and receives at 1490 nm, while the mating model
transmits at 1490 nm and receives at 1310 nm. You can only connect a
mating pair.
share the same fiber by using two different wavelengths. One model
transmits at 1310 nm and receives at 1490 nm, while the mating model
transmits at 1490 nm and receives at 1310 nm. You can only connect a
mating pair.
You can use 1000BASE-BX SFPs to double the number of your fiber links.
For example, if you have 20 installed fiber pairs with 20 conventional ports
connected, you can use 1000BASE-BX SFPs to expand to 40 ports, using
the same fiber.
For example, if you have 20 installed fiber pairs with 20 conventional ports
connected, you can use 1000BASE-BX SFPs to expand to 40 ports, using
the same fiber.
The long wavelength optical transceivers used in these models provide
variable distance ranges using single mode fiber optic cabling.
variable distance ranges using single mode fiber optic cabling.
The following table describes standards, connectors, cabling, and distances
for the 1000BASE-BX SFP.
for the 1000BASE-BX SFP.
IEEE 802.3ah 1000BASE-BX10 SFP specifications
Parameter
Specifications
Connectors
Single-fiber LC
Data rate
1.0 Gbit/s
Line rate (8B/10B code)
1.25 Gbit/s
Distance
Up to 10 km
Wavelength
1310 nm and 1490 nm
Link optical power budget
11.0 dB
Maximum transmitter and dispersion power
penalty
penalty
3.3 dB
Transmitter characteristics
Maximum launch power
-3.0 dBm
Minimum launch power
-9.0 dBm
Receiver characteristics
Maximum receiver sensitivity
-19.5 dBm
Maximum input power (maximum average
receive power)
receive power)
-3.0 dBm
Nortel Ethernet Routing Switch 8300
Installation — SFPs and XFPs
NN46200-307
01.02
Standard
4.0
27 August 2007
Copyright © 2007, Nortel Networks
.