Nortel 5500 Series Installation Manual page 53

Table 30
1000BASE-EX DDI SFP specifications
Parameter
Maximum electrical power consumption
Connectors
Cabling
Data rate
Line rate (8B/10B code)
Link optical power budget
Maximum dispersion power penalty
Transmitter characteristics
Launch power
Receiver characteristics
Receiver sensitivity
Maximum receiver power
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.
CAUTION
Risk of equipment damage
To prevent damage to the optical receiver, ensure that at least 14
dB of attenuation is present between the transmit and receive
ports.
To attain the BER of 10
transmit and receive ports is 15 dB.
Specifications
1.2 W
Duplex LC
SMF, 9 µm
1.0 Gbit/s
1.25 Gbit/s
30 dB
2.0 dB at 120 km
0 to 5.0 dBm
-30 dBm
-9.0 dBm
Nortel Ethernet Routing Switch 5500 Series
Installation — SFPs and XFPs
NN47200-302 01.04 Standard
5.1 27 January 2010
1000BASE-EX DDI SFP specifications 53
-12 , the minimum attenuation between the