Hitachi GR4000 Series Installation Manual page 105

(4) 1000BASE-SX/1000BASE-LX Multi-mode Optical Fiber Cord
(Core diameter: 50μm，SC twin- core connector)
This is used for the connection with 1000BASE-SX（GBIC-SX）and 1000BASE-LX（GBIC-
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 50／125μm and bandwidth is
400MHz･km（wave length: 850nm）is 500m.
Likely, the maximum transmission distance between the devices with 1000BASE-LX
when using an optic fiber which core/clad diameter is 50／125μm and bandwidth is
500MHz･km (wave length: 1300nm) is 550m.
Figure 3.2-4 shows the rough sketch of the cable, and Table 3.2-6 and Table 3.2-7 show
the specifications of optic fiber interfaces.
SC twin-core connector
Figure 3.2-4 Rough Sketch of 1000BASE-SX/1000BASE-LX Multi-mode Optical Fiber Cord
Table 3.2-6 Specification of 1000BASE-SX
Item
Emission peak wavelength
Optical output level (average)
Optical input level (average)
Transmission loss
Table 3.2-7 Specification of 1000BASE-LX
Item
Emission peak wavelength
Optical output level (average)
Optical input level (average)
Transmission loss
520-10-014-20X
(core diameter: 50µm)
GR4000 Installation Guide Version 1.00 - Preliminary
SC twin-core connector
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
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