參數(shù)資料
型號: 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): 29/164頁
文件大?。?/td> 1173K
代理商: PSB7110
_________________________________________________PSB 7110
Siemens Aktiengesellschaft
Page 29
2.3.3
Binary Mode
In binary mode no character formatting is performed. Octets are transferred with the least significant bit or most
significant bit transferred first.
Programmable Features are:
Idle character on data underrun
Bit swapping (LSB/MSB first)
In transmit direction, data from the transmit buffer is transmitted with the LSB or MSB first. In case of data underrun,
i.e. if there's no more data in the transmit buffer, a programmable byte or the last data byte is continuously
transmitted.
In receive direction, the data stream is received in octets. Their contents is transferred to the receive buffer .
2.4
Pump Configuration
Pump in general describes the additional formatting of the SART data which is then forwarded to the IOM-2
interface.
The pump options are:
Fax modulations
Datamodem modulations
Halfduplex modulations
V.110
DTMF
DTMF transmission
Bypass (transparent data)
All pump modes except V.110 and bypass are only available in channel 1. Both modes, V.110 and bypass, are
available in channel 1 and 2.
It must be noted that V.110 operation is not possible in channel 2, if channel 1 is operating with datamodem
modulations (fullduplex modulations).
However V.110 can be operated in one channel, if the other channel is configured to any other mode except
datamodem modulations, which is fax modulations, V.110, DTMF, DTMF transmission, bypass or halfduplex
modulations (without option of fullduplex modulations).
The host must ensure that the pump is not configured to datamodem modulations and V.110 simultaneously, which
would cause malfunctions for both channels.
In DTMF mode the pump is transfering data between the SART unit and the IOM-2 interface transparently (like
bypass mode) while a DTMF receiver is active to detect DTMF signals.
For transmission of DTMF tones the pump must be reconfigured to "DTMF transmission".
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