Lucent Technologies SLC 5 Series - Page 420

363-205-401 Conversions: NTP-010
Issue 7, March 1997 Page 5 of 6
DO ITEMS BELOW IN ORDER LISTED FOR DETAILS, GO TO
11.
NOTE:
All line interface units (
LIU
s) in the same system should
have identical option switch settings.
DLP-514Set options and install a C- or D-type
LIU
in the facility shelf for
each DS1 being equipped. Wait for the
FAIL
LED on the
LIU
to
light and go off before installing the next
LIU
. If the
FAIL
LED fails
to light and go off, do
TAP-100
before continuing.
Within 30 seconds, the
DIGROUP
LED on the
BCU
for the
LIU
just installed goes off. After the last digroup LIU is installed in a
system optioned for protection switching, only the
MN
and
NE
LEDs on the ADU remain lighted. In systems not optioned for pro-
tection switching, all alarms clear.
DLP-51612. If protection switching is desired, install
AUA74 LSU
(line switch
unit) in facility shelf. Otherwise, proceed to Step 14
13.
NOTE:
All line interface units (
LIU
s) in the same system should
have identical option switch settings.
DLP-514Set options and install a C- or D-type
LIU
in the LIU-P slot in the
facility shelf. The
FAIL
LED on the
LIU
should light momentarily
and go off. If the
FAIL
LED fails to light and go off, do
TAP-100
before continuing.
Within 30 seconds, the
MN
and
NE
LED on the
ADU
goes off.
14.
NOTE:
The
CTU
is used with the pair gain test controller (PGTC) to
enable remote testing of channel units and subscriber lines
beyond the remote terminal.
If required and not previously installed, install the
CTU
. Verify that
the
FAIL
LED on the
CTU
lights and goes off and
BUSY
LED is
off. If not, check fuses on the
CFU
then do
TAP-100
before con-
tinuing.