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Cisco Model 6451 (46-550 MHz) Feedforward Headend Driver Amplifier Data Sheet

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Laser Link Optical Switches 
 
2
 
 
Block Diagram 
 
Fron
t P
a
n
el 
Bo
ard
Optical
Switch 1
Optical
Switch 2
Optical
Switch 3
Optical
Switch 4
Power Supply
and Redundancy
Switchover Circuitry
Logic and Control
&
Element
Management
System Interface
Front Panel Switch Controls
Manual/Automatic Switch
LEDs
External Switch Inputs
Switch Status Outputs
RJ-11 Interface
Supply A
Supply B
On/Off
IN A
IN B
OUT A
OUT B
IN A
IN B
OUT A
OUT B
IN A
IN B
OUT A
OUT B
IN A
IN B
OUT A
OUT B