ND-45383 (E)
CHAPTER 4
Page 113
Revision CD 1.0
2.4 Check of Battery Operation when Power Supply Failure to the DRU
ATTENTION
Contents
Static Sensitive
Handling
Precautions Required
Check lamp indications on the DRE
card in the DRU
END
A
Confirm that the lamp indications of the DRE card as shown be-
low.
When the lamp indications are as shown above, perform the fol-
lowing loop-back tests.
•
Loop-back test between the DLI and the transmission equip-
ment.
(Refer to Paragraph 3.3 in Chapter 5)
LAMP NAME
LAMP
INDICATION
LINK (G)
ON
ALM (R)
OFF
LB (R)
OFF
START
Unplug the AC cord of the DRU
from the AC outlet
Plug the AC cord of the DRU into
the AC outlet
END
Confirm that the system message “13-Q” is displayed.
Confirm that the POWER lamp of the DRU illuminates.
Confirm that the system message “13-R” is displayed.
