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): 140/164頁
文件大?。?/td> 1173K
代理商: PSB7110
_________________________________________________PSB 7110
Siemens Aktiengesellschaft
Page 140
3.11.7
HDLC Reception
A host can control HDLC frame reception during a fax group 3 session by issuing the command
CMD_FRH to the fax pump. HDLC reception is specified by the T.30 procedure during the exchange
of control information. Some applications may alternatively implement HDLC framing directly, they
would then use binary reception for the reception of their HDLC bit stream.
AT+FRH=<MOD>
Generate Command
CMD_FRH
(set parameter <MOD>)
Event
RSP_CONNECT
Yes
No
Event
RSP_FCERROR
Yes
No
No
Yes
A
Generate
Continue
Event
LINE_RX_HDLC
Yes
No
Event
RSP_FCERROR
Abort character
from DTE
Yes
No
No
Yes
A
C
Issue
"Connect"
Transfer data
from fax pump to DTE
No
Yes
No
No
Yes
Abort character
from DTE
DU_FRAME_END
seen
NO_MORE_DATA
flag seen
Send
<DLE><ETX>
to DTE
A
D
B
Done
Yes
No
Frame received
correctly
Issue
"OK"
Generate Command
CMD_ESCAPE
No
Yes
Same FRH
command
Different command
C
Abort character
from DTE
Send
<DLE><ETX>
to DTE
Send
<DLE><ETX>
to DTE
No
Yes
Yes
Figure 24 HDLC reception
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