363-205-401
Conversions: NTP-010
Issue 7, March 1997
Page 3 of 6
DO ITEMS BELOW IN ORDER LISTED
FOR DETAILS, GO TO
4.
Remove the following circuit packs from the RT system being con-
verted:
• ADU
• BCU
• TRUs
• LIUs
• LSU.
5.
Set option switches for preservice and unequipped. Install the
alarm display unit (ADU) and disregard all alarms.
6.
Install the bank control unit (BCU).
7.
Remove the ADU. Change switch S1-5 and S1-6 to ABE and
CDE. If also equipping the B DS1, change S2-7 to the left (not
labeled). If also equipping the D DS1, change S2-8 to the left (not
labeled).
Set the NORM/CLEAR option plug for NORM. Reinstall the ADU.
!
CAUTION:
If the NORM/CLEAR option plug is left in the CLEAR
position, administrative memory clears each time the bank
resets. This memory clearing results in a temporary service
interruption.
If a channel test unit (CTU) or digital test unit (DTU) is already
installed in the dual bank assembly, within 75 seconds, only the
MJ and NE LEDs on the ADU and the DIGROUP LEDs on the
BCU stay lighted.
Otherwise, within 75 seconds, only the FAIL, MN, and NE LEDs
on the ADU stay lighted.
