Installation Manual
Quidway Eudemon 200 Firewall Chapter 7 Interface Module
7-6
Note:
In terms of transmission mode, optical fibers fall into multi-mode optical fiber and single-mode optical fiber.
z Single-mode optical fiber has very thin core, and transmits only in single mode on a given wavelength.
It features wide band and large transmission capacity.
z Multi-mode optical fiber can make the transmission in multiple modes on a given wavelength. In
multi-mode, lights of different modes are transmitted at different speeds, resulting in phase difference
and hence limiting the transmission band. In terms of fiber core diameter, there are two types of
multi-mode optical fibers, i.e., 62.5µm and 50µm, which are acceptable transmission media in ISO/IEC
11801 standard.
7.5.2 Interface Attributes
Table 7-4 1MFX/1SFX interface attributes
Description
Attribute
1SFX 1MFX
Connector SC
Connector number
1
Optical fiber mode
Single-mode
Multi-mode
Max. transmission distance
15km 2km
Central wavelength
1310nm (1261~1360nm)
1315nm (1270~1360nm)
Min.
-15dBm -20dBm
Transmitting
optical power
Max.
-8dBm -14dBm
Receiving sensitivity
-31dBm -31dBm
Overload optical power
-8dBm -14dBm
Operating mode
Full duplex
100Mbps
Supported frame format
Ethernet_II
Ethernet_SNAP
Supported network protocol
IP
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