參數(shù)資料
型號(hào): PSB7110
廠商: SIEMENS AG
英文描述: Enhanced ISDN Data Access Controller ISAR
中文描述: 增強(qiáng)綜合業(yè)務(wù)數(shù)字網(wǎng)的數(shù)據(jù)接入控制器專家組
文件頁數(shù): 21/164頁
文件大小: 1173K
代理商: PSB7110
_________________________________________________PSB 7110
Siemens Aktiengesellschaft
Page 21
2
Functional Description
2.1
General Functions
Figure 10
depicts the detailed architecture of the PSB 7110 ISDN Data Access Controller:
* One Fax/Modem engine for V.32 bis, V.17 (14400 bps), including fallback modes
* DTMF receiver / transmitter
* Two V.110 formatter (except during datamodem modulation)
* Two universal formatters supporting ASYNC (ITU-T V.14), HDLC and binary modes
* External SRAM interface for program and data memory
* Communications Mailbox with 61 bytes per direction
* IOM-2 interface for terminal or line-card application
V.17 Fax
V.32 bis Modem
V.110, DTMF
Transparent
Local Bus Interface
Communication
Mailbox
2 x 61 bytes
Host Interface
IOM-2
Test and
Diagnostics
SRAM
32K x 16
Buffer
Async, HDLC
Binary
V.110
Transparent
Buffer
Async, HDLC
Binary
(7110_21)
Figure 10 Functional Blockdiagram of the ISDN Data Access Controller
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