TOA Electronics EX-16 Manuale Utente Scaricare il pdf (Pagina 35)

3. T-Line and R-Line are shorted or mixed up.

Shorted or mixed up

3-1 A can not dial.

3-2 Conversation is impossible between

stations.

3-3 When B dials A, noise will be heard at

B immediately after the calling tone.

4. T-Line and R-Line are connected conversely.

Symptom:

4-1 A can not dial.

4-2 Conversation is impossible between

stations.

4-3 When B dials A, noise will be heard at B.

(B)

T-Line

R-Line

EXCHANGE

T-Line

R-Line

Conversed

(A)

R-Line

T-Line

(A)

EXCHANGE

R-Line

T-Line

(B)

Symptom:

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