Front Displays
Figure 2 FOM‐3841/3842 Front Display
These LEDs indicates status as per the following table
POTS Exchange
Power
Optics
SW Option
Off Hook
Off Hook
Off Hook
Off Hook
Ringing
Ringing
Ringing
Ringing
CH 1
CH 2
CH 3
CH 4
FOM-3842
POTS Subscriber
Power
Optics
SW Option
Off Hook
Off Hook
Off Hook
Off Hook
Ringing
Ringing
Ringing
Ringing
Ring Down
CH 1
CH 2
CH 3
CH 4
Display LED Indicators
Label
Status
Description
Power
Steady Green
The power supplies on the card are operating properly.
Steady Red
The power supplies on the card are not regulating the correct voltages or there is an
open fuse on the card. Unplug the power from the card for 30 seconds and then plug
it in again so that the fuse on the card has time to reset. If the Power led is still red or
not a constant green, replace the card.
Off
Card failure or main power failure.
Optics
Steady Green
Optics in sync at each end of link
Flashing Green
Local optical RX is receiving errors
Steady Yellow
Remote optical RX loss of signal or sync
Flashing Yellow
Local optical RX signal present, but no sync
Flashing Orange
Card type mismatch at remote end; the two cards are not compatible
Steady Red
No optical RX signal
Off
Card failure
SW Option
Steady Green
No Function
Off Hook
Yellow
Line is off hook
Off
Line is on hook
Ringing
Yellow
Line is ringing
Off
Line is idle
Ring Down
Yellow
Fom‐3842 is paired with another FOM‐3842 for 4‐channel ringdown
Off
Normal POTS operation
Summary of Contents for FOM-3841
Page 1: ...USER MANUAL 4 Channel POTS Telephone Fiber Converter FOM 3841 3842...
Page 5: ...Typical Application...
Page 6: ...Features Rear Indicators Connections Figure 1 FOM 3841 3842 Rear 1 1 1 2 2 3 3 4 6 5 6...
Page 14: ...Specifications Figure 6 FOM 3841 3842 Dimensions 80 20 4 11 50X 50 12 7 5 22X...