NEC ND-71762(E) Instrukcja Użytkownika Pobierz pdf (Strona 71)

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

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

0dB

DTI/CCT

-8dB

0dB

DTI/CCT

0dB

TANDEM OFFICE

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NEC ND-71762(E) Instrukcja Użytkownika Strona 71