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5.
SECTION XIX
Configuring New DN6616/6624/6632
(DN6690—l)
Orginal DN FNPs cannot be upgraded to the new
66 system.
Required components
1.
2.
Base
FNP - DCP66XX.
One or more line interface units
(LIUs).
a.
b.
Every line must terminate in an LIU, via any line
from a common carrier or an in-plant connection.
Each LIU represents a Level 6 type daughter board
occupying one quarter or one half a GPCB
(Level 6
type mother board).
Line connectivity is determined by the size of
LIU boards (quarter or half)
required
(for line
speed, transmission type, protocol)
and the
quantity of GPCBs included in FNP price (1, 7,
ll). Depending on their type,
LIUs can support
one or two lines each.
One or more in-plant connection features if lines are
not furnished by common carrier companies.
In-plant
connection is by use of specific direct connect or
modem bypass features. Each must connect to an
appropriate LIU.
Depending on the terminal and
distance, current loop interface LIUs can be used,
with no need for specific direct connect or modem
bypass features.
177
DH92.
Rev.
0
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