FiberPlex FOM-1090 - Manual (Page 10)

Front Displays
Figure 2 FOM‐1090 (left) and FOM‐1091 (right) Displays
These LEDs indicates status as per the following table
Display
LEDs
Label Status Description
Power Steady Green Card power supply normal operation
Steady Red Card power supply failure or in over‐current protection
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 Optional switch setting is in use
Flashing Red Card is in Loop Back mode
Off No optional switch setting is in use; text is turned off
TD Flashing Data transitions detected
RD Steady Data in steady SPACE condition
Off Data in steady MARK condition
TT Flashing Clock transitions detected
RT Steady Clock in steady On state
ST Off Clock in steady Off state
Data Invert Steady Green Optional data invert in use – typically used for MIL interfaces
Off No optional data invert – normal operation; text is turned off
Data Regen Steady Green Optional TD signal regeneration in use – FOM‐1091 only
Flashing Red Optional TD regeneration configuration error
Off No TD regeneration – normal operation; text is turned off
RS Steady Control signal in On state
CS Off Control signal in Off state
TR Yellow/Orange/Red Yellow for a DCE unit, Orange for a DTE; solid Red is a disabled interface
DM Yellow/Orange/Red Yellow for a DCE unit, Orange for a DTE; solid Red is a disabled interface
RR Yellow/Orange/Red Yellow for a DCE unit, Orange for a DTE; solid Red is a disabled interface
LL Yellow/Orange/Red Yellow for a DCE unit, Orange for a DTE; solid Red is a disabled interface
RL Yellow/Orange/Red Yellow for a DCE unit, Orange for a DTE; solid Red is a disabled interface
TM Yellow/Orange/Red Yellow for a DCE unit, Orange for a DTE; solid Red is a disabled interface
IC Steady Control signal in On state
Off Control signal in Off state