Communications Specialties 3620A Series Посібник користувача - Сторінка 6

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Fiberlink® 3620A Series
Optical Loss Budget & Maximum Useable Distance
Fiber Type
Single Mode Fiber
Multimode Fiber (62.5u)
Multimode Fiber (50u)
*Distance specifications are approximate and are not guaranteed.
Operating loss budget must not be exceeded.
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.
Alarm Switch Settings for the Transmitter Card
Switch Position
1
2
Alarm Switch Settings for the Receiver Card
Switch Position
1
2
Page 6
Optical Loss Budgets | Alarm Switch Settings
Loss Budget
0-17 dB
0-20 dB
0-20 dB
Alarm Indication
Loss of Input Video
N/A
Alarm Indication
Loss of Optical Signal
Loss of Input Video
Distance
40km
7.5km
5km
On
Off
Enabled
Disabled
N/A
N/A
On
Off
Enabled
Disabled
Enabled
Disabled
Fiberlink® 3620A Series User's Manual