GE 994-0089 Benutzerhandbuch

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GE Energy 
 
54 
 
994-0089–1.00–2, General
 
 
Warning: LED transmitters are classified as IEC 60825-1 Accessible Emission 
Limit (AEL) Class 1M.  Class 1M devices are considered eye safe to the unaided 
eye.  Do not view directly with optical instruments
 
» 
To connect fiber optic links to the Fiber Optic adapters, plug fiber optic cables 
into the corresponding TX and RX connectors. 
Hot Standby Fiber Optic Connections 
The Hot Standby Fiber Optic Ethernet Switch (GE Part No. 520-0214) is a 100BaseSX  (820-
850 nm) network switch that supports single-IP redundancy for the D400. It provides 
automated fail over between two Ethernet fiber optic network connections (RX1/TX1 and 
RX2/TX2
) that share a single MAC address.  
The Hot Standby Fiber Optic Ethernet Switch can be installed in the NET1 or NET2 slot 
(slots 11 and 12) on the D400.  
If two Hot Standby Ethernet switches are installed in the NET slots, the system may be 
used in a dual-IP redundancy mode. That is, each switch can be configured with a 
different IP address to provide a back up network connection if the primary channel fails. 
You can use the following glass optical fiber (GOF) cabling with the D400 Glass Optical 
Fiber Serial adapter: 
•  50/125 µm core/cladding multi-mode (gradient index) cable 
•  62.5/125 µm core cladding multi-mode (gradient index) cable 
•  100/140 µm core/cladding multi-mode (gradient index) cable 
•  200 µm core Hard-Clad Silica (HCS) multi-mode (step index) cable 
You can use the following fiber optic terminations for D400 cabling: 
•  ST Connectors 
When calculating cable length, consider the following optical power levels: 
•  Glass optical fiber transmitter power is –19.0 ± 2 dBm 
•  Glass optical fiber receiver sensitivity is typically –31.0 dBm 
Warning: LED transmitters are classified as IEC 60825-1 Accessible Emission 
Limit (AEL) Class 1M.  Class 1M devices are considered eye safe to the unaided 
eye.  Do not view directly with optical instruments