363-205-401
RT Turn Up: DLP-512
Issue 7, March 1997
Page 7 of 12
12.
NOTE:
Read this Step completely before inserting LIU. Tables D and E list
alarm indicators that are present after the LIU, for your system
configuration (Feature Package with or without protection), has been
installed. These alarm indicators are listed on the same row as the LIU to
be installed.
NOTE:
After installing LIU if the associated DIGROUP(s) indicator(s) on BCU
does not go off, verify that option switch settings on ADU and LIU are
correct.
Insert LIU into appropriate slot in facility shelf (left side for blue bank or right
side for white bank) while observing indicators on LIU faceplate. See Table D
or E for alarm indicators that change when the LIU is installed (for your Fea-
ture Package configuration).
Response:
LIU FAIL indicator lights momentarily then goes off, and the
associated DIGROUP(s) indicator(s) on BCU goes off.
Comment: If the LIU FAIL indicator does not go off, press and hold the
ADU LED TEST button. If the LIU FAIL indicator goes off
while the button is pressed, the circuit pack is not compatible
with the channel bank application. Get the correct code circuit
pack and verify ADU option switches are correct. The AUB27
ADU CMP indicator will light if the ADU is optioned wrong, an
incompatible LIU was installed, or a wrong LIU option was set.
