363-205-401
DT Turn Up:
Issue 7, March 1997
Page 1 of 2
DLP-505
Power Up 900A1, 900A2, or 900A3 DT
1.
While observing indicators on ASJ1 or ASJ2 CU, turn DT power switch to ON
position.
Comment: This assumes power to the DT has been established.
Response:
All indicators light momentarily and extinguish. OOF stays
lighted.
2.
Did all indicators light momentarily and the OOF indicator remain lighted?
Comment: The 900A2 or 900A3 DT power LED will light.
The OOF light will go off if the fiber facility and RT is already
established.
If YES, then proceed to Step 5.
If NO INDICATORS LIGHTED, then continue with Step 3.
If ALL INDICATORS REMAIN LIGHTED, then proceed to Step 4.
3.
Turn DT power off. Then replace the items below in the order listed until all
indicators are off except OOF:
• ASH1 PCU (power converter unit)
• ASJ1 or ASJ2 CU
• AYB1B OU (optical unit)
• 900A1, 900A2, or 900A3 DT closure.
After proper power indication is achieved, proceed to Step 5.
4.
Turn DT power off and replace ASJ1 or ASJ2 CU and repeat this procedure
from Step 1. (Perform Step 3 the second time through if all indicators remain
lighted after the ASJ1/ASJ2 has been replaced).
5.
Connect battery pack J104 to P104.
6.
Turn off DT power and observe the ON BAT indicator.
