NEC ND-71762(E) Telephone User Manual


 
ND-71762 (E) CHAPTER 5
Page 57
Issue 2
INSTALLATION TEST PROCEDURE
2.1.5 PAD Setting
When setting up a No.7 CCIS Network, PAD setting differs from that in the case of analog network.
(a) For an outgoing call to/incoming call from a Tie Line:
Via “ARTD” command (CDN=30) or by switch setting on the circuit card (DTI/CCT).
(b) For a tandem Tie Line connection:
Via “APAD” command or switch setting on the circuit card
<EXAMPLE>
At both the originating and terminating offices, 0 dB is set to the outgoing side and 8 dB is set to the terminating of
the DTI/CCT route via “ARTD” command or switch settings.
At the tandem office, 0 dB is set for both the terminating and originating sides of each DTI/CCT route via “APAD”
command.
This arrangement is shown in Figure 5-4.
Figure 5-4 Example of PAD Setting for CCIS
ORIGINATING OFFICE
TERMINATING OFFICE
0dB
-8dB
-8dB
0dB
DTI/CCT
DTI/CCT
-8dB
-8dB
0dB
0dB
DTI/CCT
0dB
0dB
0dB
0dB
TANDEM OFFICE