Instruction manual

B. Physical Specifications of Network Interfaces
215
Item
Physical specifications
(mean)
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
#1: Regarding 1000BASE-LX, some kinds of multiple-terminal mode optical fiber may
increase the BER (bit error rate). In such cases, use of mode-conditioning patch cords can
clear the communication problem.
Table B-8 Physical specifications of 1000BASE-LH
Item
Physical specifications
Cable Type
Single-terminal mode
Single-terminal mode
(DSF)
Core/cladding diameter
10 / 125m
8 / 125m
Laser center wavelength
1.540 to 1.570m
Optical transmission power
(mean)
0 to +5.0 dBm
Optical reception power (mean)
-22.0 to 0 dBm
Optical transmission loss (max.)
22dB
#1
Transmission distance
2 m to 70 km
#1: When optical transmission loss is 5.0 dB or less, use an optical attenuator to adjust the
loss.
Table B-9 Physical specifications of 1000BASE-LHB
Item
Physical specifications
Cable Type
Single-terminal mode
Single-terminal mode
(DSF)
Core/cladding diameter
10 / 125m
8 / 125m
Laser center wavelength
1.480 to 1.580m
Optical transmission power
(mean)
+2.0 to +7.0 dBm
Optical reception power (mean)
-34.0 to -9.0 dBm
Optical transmission loss (max.)
36.0dB
#1