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Table 13-10 Necessary components for optical cable system
Names of components
Switching hub
Optical media converter (Type A)
Optical media converter (Type B)
LAN cable (twist pair, category 5)
Optical cable for LAN
Remarks
Be sure to use type A and type B in pairs.
↑
Be sure to use the LAN cable in accordance with category 5 corresponding to 100BASE-Tx to
connect to an optical media converter.
Applicable cable: 9/125µm single mode optical cable
Allowable transmission distance: 15km
Type of connector: SC connector
13.5 System Using Optical Cable for LAN
As stated in item 0, the LAN wiring length in G-50A system can be expanded up to 500m by connecting a
hub in the form of cascade connection. However, in the system in which the wiring length requires 500m or
more on the system configuration, Optical cable if used can be extended up to 500m or more.
PC for centralized
control
G-50A
PLC
G-50A
Optical media
converter (Type A)
Switching hub
Optical cable for LAN
Maximum length: 15km
Optical media
converter (Type B)
Switching hub
10BASE-T
10BASE-T
10BASE-T
100BASE-Tx
10BASE-T or 100BASE-Tx
100BASE-Tx
Figure 13-8 Chart of LAN system using optical cable
(1) Switching hub
A switching hub is a component to memorize the IP address of equipment to be connected to the hub to
hold the route at the other end. There is no limit in its stage due to no need of screening and detection
of the equipment at the other end. For details, refer to Clause 6.3.2.
(2) Optical media converter
This is a converter to transform a regular LAN signal to an optical signal.
The recommended MELCO optical media converter has Type A and Type B, and be sure to use in
pairs.
(3) Optical cable for LAN
This is optical cable for LAN.
Recommended specifications of the optical media converter are as shown in above table.
A system with a wiring length of 15km
1
can be established by using optical cable.
1
The wiring length for LAN depends on an optical media converter to be used. For details, refer to Instruction Manual for Optical Media
Converter.