Power Up And System Leds; Power-Up - NEC DS2000 Hardware Manual

Power Up and System LEDs

Power-Up

Now that all the PCBs you need are installed and you have cabled the system, you can now power-up. You
do not need to reattach the right side panel before powering up the system. Leaving the right side panel
removed makes the station and trunk cabling more accessible.
To power up the system (Figure 3-3) through (Figure 3-5):
1. Make sure the system is properly grounded and the PCB bracket is reinstalled and secured.
2. Install surge protectors in the AC outlet you intend to use for system power.
3. Plug the main cabinet's AC power cord into its surge protector.
4. Turn on the main cabinet power switch. After about 30 seconds, verify the system LEDs.
5. After verifying that the PCBs have successfully powered up, turn to Using Program 9902 in DS2000 to
Add or Delete PCBs in your Quick Setup Guide to enable the PCBs in programming.
DS2000 Hardware Manual
LED
Power Supply
CPU PCB
DSTU, ASTU, and ATRU PCBs
Figure 3-3: Power Supply Status LEDs
Power Up and System LEDs
Normal Power-On Status
• All three LEDs on (green)
• Top LED flashing (slowly green)
• Top LED flashing (slowly green)
• Bottom LED flashes (yellow) when ports
on the PCB are busy. The faster the flash,
the more ports are busy.
Section 3: Installing Extensions and Trunks
3
3-3