Lucent Technologies SLC 5 Series - Page 419

Conversions: NTP-010 363-205-401
Page 4 of 6 Issue 7, March 1997
DO ITEMS BELOW IN ORDER LISTED FOR DETAILS, GO TO
8. Install an
AUA112
transmit/receive unit (
TRU
) in AB shelf. Verify
that the
TRU FAIL
LED lights and goes off. If not, do
TAP-100
before continuing.
In about 25 seconds, only the
MJ
and
NE
on the
ADU
and
DIGROUP
LEDs on the
BCU
stay lighted.
Since a minimum system configuration requires equipping both
the A and C DS1 facilities, the
A
and
C DIGROUP
LEDs will be
lighted. The
D DIGROUP
LED will also light whether or not it is
being equipped. The
B
will only light if the
B DIGROUP
DS1 facil-
ity is being equipped.
9. Install an
AUA112
transmit/receive unit (
TRU
) in CD shelf. Verify
that the
TRU FAIL
LED lights and goes off. If not, do
TAP-100
before continuing.
Only the
MJ
,
NE
, and
CMP
on the
ADU
and the
DIGROUP
LEDs
on the
BCU
stay lighted.
Since a minimum system configuration requires equipping both
the A and C DS1 facilities, the
A
and
C DIGROUP
LEDs will be
lighted. The
D DIGROUP
LED will also light whether or not it is
being equipped. The
B
will only light if the
B DIGROUP
DS1 facil-
ity is being equipped.
10. Install the
993A TRU
cable between the faceplate connectors on
the
TRUs
. The
CMP
LED on the
ADU
clears in about 30 seconds.
If the
LIU D
DS1 facility is not being equipped, the
D DIGROUP
LED goes off at this point.