Hitachi GR4000 Series, Руководство по установке

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GR4000 Installation Guide Version 1.00 - Preliminary
520-10-014-20X
91
(8) 10GBASE-ER Single-mode Optical Fiber Cord
(Core diameter: 10
μ
m
，
SC twin-core connector
）
This is used for the connection with 10GBASE-ER/10GBASE-EW.
The boundary with 10GBASE-ER/10GBASE-EW is the connector on GR4000.
The maximum transmission distance between the devices with 10GBASE-
ER/10GBASE-EW when using an optic fiber which core/clad diameter is 10
／
125
μ
m
（
wave length: 1300nm
）
is 40Km.
Figure 3.2-8 shows the rough sketch of the cable, and Table 3.2-13 shows the
specification of an optic fiber interface.
Figure 3.2-8 10GBASE-ER/10GBASE-EW Single-mode Optical Fiber Cord (Core diameter:
10µm
）
Table 3.2-13 Specification of 10GBASE-ER/10GBASE-EW
Item Specification
Emission peak wavelength
1.530 ～ 1.565µm （ Note 1 ）
Optical output level (average)
＋ 4.0 ～ - 4.7dBm
Optical input level (average)
- 1.0 ～ - 15.8dBm
Transmission loss
11.0dB （ Note 2 ）
Dispersed yield strength 728ps/nm
(Note 1) Use an optical fiber cord which wavelength is 1300nm.
(Note 2) The transmission loss during optical transmission should be at least 5dB. Use an optical attenuator to adjust the
transmission loss when it is under 5dB.
*
NOTE: The values shown in Table 3.2-13 are complying with IEEE802.3ae.
This cable should be used as a patch cord. Figure 3.2-9 below shows an example of the
interface connection using it.
Figure 3.2-9 Connection Example
*
NOTE: For the line shown as “Line already set” in Figure 3.2-9 above, users should
prepare their own lines by themselves.
SC twin-core connector SC twin-core connector
Line already set
10GBASE-ER
10GBASE-EW
single-mode optical
fiber cord (patch cord)
Optical fiber （ Max. 40km ）
a b
GR4000
NE10G-1ER
GR4000
NE10G-1ER
a b
NE10G-1EW NE10G-1EW
10GBASE-ER
10GBASE-EW
single-mode optical
fiber cord (patch cord)