Physical Description - Meridian Nortel 1 Option 11C Technical Reference Manual

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Physical description

Table 162
NT5D14AA Line Side T-1 Faceplate LEDs (Part 1 of 2)
LED
STATUS
RED
YEL
553-3011-100 Standard 14.00
NT5D14 Line Side T-1 card
The line side T-1 card emulates an analog line card to the Option 11C system
software; therefore, each channel is independently configurable by software
control in the Single-line Telephone Administration program (LD 10). The
line side T-1 card also comes equipped with a Man-Machine Interface (MMI)
maintenance program. This feature provides diagnostic information
regarding the status of the T-1 link.
The line side T-1 card mounts into any two consecutive IPE slots. The card
consists of a motherboard and a daughterboard; both are printed on standard
circuit board.
In general, the LEDs operate as shown in Table .
State
On (Red)
Off
On (Red)
Off
On (Yellow)
Off
January 2002
The NT5D14AA card either failed its self-test or it
hasn't yet been configured in software.
The card is in an active state
A red alarm has been detected from the T-1 link.
(This includes, but is not limited to: not receiving a
signal, the signal has exceeded bit error thresholds
or frame slip thresholds.)
No red alarm exists.
A yellow alarm state has been detected from the
terminal equipment side of the T-1 link. If the
terminal equipment detects a red alarm condition, it
may send a yellow alarm signal to the line side T-1
card (this depends on whether or not your terminal
equipment supports this feature).
No yellow alarm.
Definition