PSB7110F 查看數據表（PDF） - Siemens AG

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PSB7110F

Enhanced ISDN Data Access Controller ISAR

Siemens AG 

_________________________________________________PSB 7110

1.1

System Integration

1.1.1

ISDN PC / Workstation Adapter with So interfaces

The ISDN PC or Workstation Adapter is based on the ISAR. A PSB 2186, ISAC-S TE forms the So-transceiver and

provides the HDLC controller to perform the D-Channel signalling protocol. External circuitry is required for the So

interfaces which includes the transformer and protection circuitry. The host interface of the ISAR is connected to the

host bus.

IOM-2

SRAM

32kx16

ISAR

PSB7110

ISAC-S TE

PSB 2186

So

Interface

Interface

Logic

Host Interface

Figure 1 ISDN PC / Workstation Adapter

(7110_11)

The ISAR supports HDLC based applications like file transfer, access to packet switches (X.75, V.120, PPP). It also

supports communication to terminal adapters which perform bit rate adaptation according to V.110.

A special feature of the ISAR is its support for analog fax/modem applications. Therefore, PCM data is converted to

linear data and handled by a V.32bis / V.17 data pump to support data rates up to 14400 bps.

Siemens Aktiengesellschaft

Page 8

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