GE 994-0089 Benutzerhandbuch

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GE Energy 
 
40 
 
994-0089–1.00–2, General
 
 
3.9 
Hot Standby Fiber Optic Ethernet Switch 
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.  
When the primary port (Fiber Optic Channel 1) receives no signal, or detects a fault signal 
from the remote link partner, the D400 switches to the secondary port (Fiber Optic 
Channel 2) if it has a valid link. The D400 reverts to the primary port if the primary link is 
restored or no signal is present on the secondary port. 
The Hot Standby Fiber Optic Ethernet Switch can be installed in the NET1 or NET2 slot 
(slots 11 and 12) on the D400.  
See section “4.5 Fiber Optic Connections” for typical cable connections. 
Configuration Options 
There are no selectable options on the Hot Standby Fiber Optic Ethernet Switch card. 
Hot Standby Fiber Optic Ethernet Switch Card