Instruction manual

Appendix B Physical Specifications of Network Interfaces
182
Appendix B.2 Ethernet 1000BASE-X Interface
Table B-4 Physical Specifications of 1000BASE-SX
Table B-5 Physical Specifications of 1000BASE-SX2
*1 Use of mode-conditioning patch cords can extend the transmission distance. However, the maximum distance for transmission is
2 km, which might result in transmission loss. For the purpose of transmissions at a 2-km distance, it is required to reduce the
transmission loss to around 10 dB or less.
Table B-6 Physical Specifications of 1000BASE-LX
*1 For 1000BASE-LX, some kinds of multiple-terminal mode optical fiber might increase the BER (bit error rate). In such cases, the
use of the mode-conditioning patch cords can clear the communication problem.
Item Physical Specifications
Cable type Multiple-terminal mode
Core/cladding diameter 50 µm/125 µm 62.5 µm/125 µm
Transmission bandwidth 400 MHz·km 500 MHz·km 160 MHz·km 200 MHz·km
Laser center wavelength 0.770 to 0.860 µm
Optical transmission power (mean) -9.5 to 0 dBm
Optical reception power (mean) -17.0 to 0 dBm
Optical transmission loss (max.) 7.5 dB
Transmission distance 2 to 500 m 2 to 550 m 2 to 220 m 2 to 275 m
Item Physical Specifications
Cable type Multiple-terminal mode
Core/cladding diameter 50 µm/125 µm 62.5 µm/125 µm
Transmission bandwidth 500 MHz·km 500 MHz·km
Laser center wavelength 1.270 to 1.355 µm
Optical transmission power (mean) -9.0 to -3.0 dBm
Optical reception power (mean) -19.0 to -3.0 dBm
Optical transmission loss (max.) 10.0 dB
Transmission distance 2 m to 2 km
2 m to 1 km
*1
Item Physical Specifications
Cable type
Multiple-terminal mode
*1
Single-terminal mode
Core/cladding diameter 50 µm/125 µm 62.5 µm/125 µm 10 µm/125 µm
Transmission bandwidth 400 MHz·km 500 MHz·km 500 MHz·km -
Laser center wavelength 1.270 to 1.355 µm
Optical transmission power (mean) -11.5 to -3.0 dBm -11.0 to -3.0 dBm
Optical reception power (mean) -19.0 to -3.0 dBm
Optical transmission loss (max.) 7.5 dB 8.0 dB
Transmission distance 2 to 550m 2 m to 5 km