A P P E N D I X
B
LEDs
•
•
•
Chassis LEDs
NCS 5501
: Attention (ATTN), STATUS, and ALARM LEDs are located on the bottom left front of the
chassis.
NCS 5501 SE and NCS 55A1-24H
: Attention (ATTN), STATUS, ALARM, and SYNC LEDs are located
along the left front of the chassis.
NCS 55A1-36H-S
: Attention (ATTN), Status (STAT), Alarm (ALRM), and SYNC LEDs are located along
the left front of the chassis.
NCS 5502
: Attention (ATTN), STATUS, and ALARM LEDs are located on the upper left front of the chassis.
Table 15: Fixed-Port Chassis LED Descriptions
Status
Color
LED
The operator has activated this LED to identify this chassis.
Flashing blue
ATTN
This chassis is not being identified.
Off
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