Lucent Technologies MAX TNT - Figure 2-4 Location of the MAX TNT Status Lights; Status Lights on the Shelf-Controller Back Panel; Table 2-2 MAX TNT Status Lights

2-6 MAX TNT Hardware Installation Guide
Preparing for Installation
Understanding the shelf-controller back panel
Status lights on the shelf-controller back panel
The status lights (also called LEDs) on the MAX TNT back panel can be helpful if you
experience a problem, especially if it occurs shortly after power on. Figure 2-4 shows the
location of the status lights on the back panel and Table 2-2 describes them.
Figure 2-4. Location of the MAX TNT status lights
Table 2-2. MAX TNT status lights
Light Color Description
1 Green On when the unit has power.
2 Green On for any functioning shelf in a multishelf system, whether it is
configured as master or slave.
3 Yellow Behaves as follows:
• Illuminated when you restart the unit
• Goes out after the unit passes its power-on self test (POST) and is
running
• Blinks if a fatal error has occurred
4 Yellow This is the multishelf alarm light. If the master shelf stops operating, this
light illuminates on each slave shelf for about 9 seconds. It does not
illuminate on the master shelf during a multishelf alarm condition.
5 Green On when power supply A is installed and working.
6 Green On when power supply B is installed and working.
7 Yellow On when power supply A is installed and a fault occurs.
8 Yellow On when power supply B is installed and a fault occurs.
9 Green On when an Ethernet 10BaseT link has been established.
10 Green On when an Ethernet AUI link has been established.
11 Green On when the Ethernet link is active.