Avaya Bogen Universal Paging Access Module Instrukcja Użytkownika Pobierz pdf (Strona 15)

Station Port/Centrex Connections (cont'd)

Important Centrex Settings

Some phone systems (in particular, Centrex-type systems) may produce open-

switch-intervals (OSIs) when the UPAM first answers the line. OSIs are short

breaks in loop current resulting when the central office switches equipment on and

off the line. The UPAM may misinterpret these OSIs as disconnect signals. It may

be necessary to set AUX switch bank switches S4 and S5 in their OFF positions

(AUX switches are located on top edge of unit - see Figure 5 on page 16) if the

UPAM exhibits any of the following symptoms during station mode operation.

Symptoms

UPAM disconnects from the line immediately after answering.

UPAM answers and remains connected to the line but the page audio does not come

through the paging system. This condition is verified if the UPAM external contact

closures are still open during a page.

Figure 4. Station Port/Centrex Connections

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Avaya Bogen Universal Paging Access Module Instrukcja Użytkownika Strona 15