Physical Description - Nortel Enterprise 1000 Reference Manual

Physical description

Table 34
NTAK10 LED states (Part 1 of 2)
LED State
DIS On (Red)
Off
OOS On (Yellow)
Off
NEA On (Yellow)
Off
FEA On (Yellow)
Succession Communication Server for Enterprise 1000 Circuit Card Reference Guide
Applicability to France
Features specific to DTI requirements for France are implemented in
firmware, and are switch-accessed. These are:
• transmission and reception of alarm indication signaling (AIS) in TS16
such as card disabled and warm SYSLOAD
• France-specific PPM counting
• decadic dialing
• France-specific alarm report and error handling
The 2 Mb DTI pack uses a standard 9.5" by 12.5", multi-layer printed circuit
board. The faceplate is 7/8" wide and contains six LEDs.
The LEDs operate as follows:
• after the card is plugged in, the LEDs (a-e) are turned on by the power-
up circuit. The clock controller LED is independently controlled by its
own microprocessor
• after initialization, the LEDs (a-e) flash three times (0.5 seconds on, 0.5
seconds off) and then individual LEDs will go into appropriate states, as
shown in Table 34.
Definition
The NTAK10 circuit card is disabled.
The NTAK10 is not in a disabled state.
The NTAK10 is in an out of service state
The NTAK10 is not in an out of service state
A near end alarm state has been detected
No near end alarm
A far end alarm state has been detected
NTAK10 2.0 Mb DTI card Page 147 of 236