ADC D3LXC-SCA100 Manuel D’Utilisation
Front-Panel Description
LTPS-UM-8013-03
4
August 30, 2002
D3LX CO and RMT Modules
P
ROTECTION
S
WITCHING
The D3LX system may be configured for either protected or non-protected mode. For protected mode, two
modules are installed: working and protect. The working module carries the signal, while the protect module is in
standby. Each working module uses 1 group, physically occupying 2 slots. Each protected module occupies an
additional 2 slots; there are four slots required for each D3LX system.
modules are installed: working and protect. The working module carries the signal, while the protect module is in
standby. Each working module uses 1 group, physically occupying 2 slots. Each protected module occupies an
additional 2 slots; there are four slots required for each D3LX system.
In protected mode, the offline module is switched into service whenever the D3LX determines that a service fault
has occurred in the online module.
has occurred in the online module.
Table 1.
D3LX Front-Panel Description and Status LEDs
Name
Function
LEDs
The LEDs can report the following conditions:
Activity
Color
Status
STATUS
Off
Not lit
Blown fuse
On (solid)
Green
Normal operation.
On (solid)
Yellow
Module initializing or performing self test diagnostics or LED test.
On (solid)
Red
Module fault detected.
FAR END
Off
Not lit
Remote alarms inactive (no alarm).
On (solid)
Yellow
Remote alarm on D3LX CO.
DS3 STATUS Off
Not lit
Unequipped.
On (solid)
Green
DS3 active.
On (flashing)
Green
DS3 in loopback, output AIS.
On (solid)
Red
DS3 fault (LOS).
On (flashing)
Red
DS3 in loopback, output AIS.
DS3 ONLINE
Off
Not lit
DS3 offline.
On (solid)
Green
DS3 active.
OPT
Off
Not lit
Optical link active (normal operation).
On (solid)
Yellow
BER fault.
On (solid)
Red
Optical link failure (OOF)
APS
Off
Not lit
No protection switching (normal operation).
On (solid)
Yellow
Force manual protection enabled.
On (solid)
Red
Protection switching limit.
ENABLE
pushbutton
pushbutton
Pressed with APS
In a protected system, the active DS3 are force switched to that module.
Note: The ENABLE pushbutton is pressed first and released last.
Note: The ENABLE pushbutton is pressed first and released last.
Pressed with RESET
Cold start reset (service affecting).
Note: The ENABLE pushbutton is pressed first and released last.
Note: The ENABLE pushbutton is pressed first and released last.
LMPTST/APS
pushbutton
pushbutton
Pressed
Lights front-panel LEDs yellow, except for STATUS and DS3 STATUS which light red.
Pressed with ENABLE
In a protected system, the active DS3 are force switched to that module.
Note: The ENABLE pushbutton is pressed first and released last.
Note: The ENABLE pushbutton is pressed first and released last.
RESET
pushbutton
pushbutton
Pressed
Warm start reset (non-service affecting).
Pressed with ENABLE
Cold start reset (service affecting).
Note: The ENABLE pushbutton is pressed first and released last.
Note: The ENABLE pushbutton is pressed first and released last.
Retaining latch
Secures the D3LX when it is firmly seated in the backplane of the chassis and the latch is in the upright position