PRACTICE 553-2201-182
I+
Table 3-A
1000 Hz INSERTION LOSS FOR CONNECTIONS
BEiWEEN
AN ANALOG PORT
AND A DIGITAL TRUNK INTERFACE
(DTI)
PORT
TYPE OF ANALOG
CONNECTION
PORT
DIGITAL
PORT
NOMINAL
INSERTION LOSS
(dB)
Analbg
port
DTI to
to DTI
Analog port
Station to
Trunk
Local Station Tie Trunk
3 9
Local Station
CO/FX/WATS
3
3
Local Station Toll WATS (Note
1) 3 9
OPS Tie Trunk
0
6
OF5
CO/FX/WATS
0 0
OF5 Toll WATS (Note
1) 0
6
Trunk to
Trunk
Tie Trunk
Tie Trunk
Tie Trunk
Tie Trunk-ESN
Tie
Trunk-ESN
Tie Trunk-ESN
CO/FX/WATS
CO/FX/WATS
CO/FX/WATS
Toll WATS (Note
1)
Toll WATS (Note 1)
Toll WATS (Note 1)
Tie Trunk
CO/FX/WATS
Toll WATS (Note
1)
Tie Trunk
CO/FX/WATS
Toll WATS (Note
1)
Tie Trunk
CO/FX/WATS
Toll WATS (Note
1)
Tie Trunk
CO/FX/WATS
Toll WATS (Note
1)
-2
3
-2
-2.5
2.5
-2.5
0
0
0
-3
3
0
4
3
4
3.5
2.5
3.5
6
0
6
3
3
6
Note 1:
Toll WATS is a trunk to a Toll (Class 4) office for WATS access.
Note 2: Insertion loss limits are nominal loss
f0.7
dB.
4
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