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Fiberlink® 7820 Series User’s Manual
Fiberlink® 7820 Series
Optical Loss Budget & Maximum Useable Distance
Fiber Type
Loss Budget
Distance
Single Mode Fiber
0-17 dB
40km
Multimode Fiber (62.5u)
0-17 dB
1.0km
Multimode Fiber (50u)
0-17 dB
1.3km
*Distance specifications are approximate and are not guaranteed.
Operating loss budget must not be exceeded.
Alarm Switch Settings for the Transmitter Card
Switch Position
Alarm Indication
On
Off
1 (Channel A)
Loss of Input Video
Enabled
Disabled
2 (Channel B)
Loss of Input Video
Enabled
Disabled
3 (Channel C)
Loss of Input Video
Enabled
Disabled
4
N/A
N/A N/A
Alarm Switch Settings for the Receiver Card
Switch Position
Alarm Indication
On
Off
1 (Channel A)
Loss of Input Video
Enabled
Disabled
2 (Channel B)
Loss of Input Video
Enabled
Disabled
3 (Channel C)
Loss of Input Video
Enabled
Disabled
4
Loss of Optical Signal Enabled
Disabled
Alarm Switch Settings & Options
The Rack Card version of this product has an additional red indicator LED that illuminates
when an alarm condition exists.
The rack card unit also provides an output to drive a model 6020A Alarm Sensing Module
which provides an audible tone and activates a set of contacts for external signaling
purposes.
Optical Loss Budgets | Alarm Switch Settings
