Hitachi GR4000 Series Installation Manual page 103

(2) 1000BASE-SX/1000BASE-LX Multi-mode Optical Fiber Cord
(Core diameter: 62.5µm，LC twin- core connector)
This is used for the connection with 1000BASE-SX（SFP-SX）and 1000BASE-LX（SFP-
LX）.
The boundary with 1000BASE-SX/1000BASE-LX is the connector on GR4000.
The maximum transmission distance between the devices with 1000BASE-SX when
using an optic fiber which core/clad diameter is 62.5／125μm and bandwidth is
200MHz･km（wave length: 850nm）is 275m.
Likely, the maximum transmission distance between the devices with 1000BASE-LX
when using an optic fiber which core/clad diameter is 62.5／125μm and bandwidth is
500MHz･km (wave length: 1300nm) is 550m.
Figure 3.2-2 shows the rough sketch of the cable, and Table 3.2-3 and Table 3.2-4 show
the specifications of optic fiber interfaces.
LC twin-core connector
Figure 3.2-2 Rough Sketch of 1000BASE-SX/1000BASE-LX Multi-mode Optical Fiber Cord
Table 3.2-3
Item
Emission peak wavelength
Optical output level (average)
Optical input level (average)
Transmission loss
Table 3.2-4 Specification of 1000BASE-LX
Item
Emission peak wavelength
Optical output level (average)
Optical input level (average)
Transmission loss
520-10-014-20X
(Core Diameter: 62.5 µm)
Specification of 1000BASE-SX
GR4000 Installation Guide Version 1.00 - Preliminary
Specification
0.830 ～ 0.860 µm
-9.5 ～ -4.0 dBm
-17.0 ～ 0 dBm
8.5 dB
Specification
1.285 ～ 1.340 µm
-9.5 ～ -3.0 dBm
-20.0 ～ -3.0 dBm
10.5 dB
LC twin-core connector
85