PSB4860 Просмотр технического описания (PDF) - Siemens AG

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PSB4860

Digital Answering Machine with Full Duplex Speakerphone SAM EC

Siemens AG 

PSB 4860

Overview

1.6.2

Featurephone with Digital Answering Machine for ISDN Terminal

Figure 5 shows an ISDN featurephone that takes full advantage of two simultaneous

connections. In this application one channel of the PSB 4851 interfaces to the handset

and speakerphone while the other provides an interface for an external analog device

(e.g. FAX machine).

SLIC

POTS

PSB 4860

PSB 4851

077-3445

SCI

Microcontroller

Flash Memory

IOM®-2

Power Controller

PSB 2120/1

PSB 2186

ISAC®-S TE

S0-BUS

Figure 5 Featurephone with Answering Machine for ISDN Terminal

In addition, the two channels of the PSB 4851 can be used for holding two connections

simultaneously. One connection can be switched to the handset and the other to the

speakerphone box. Local three party conferences are also possible.

Semiconductor Group

21

10.97

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