CMX218S1 MX-COM, Inc., CMX218S1 Datasheet - Page 19

• Manufacturer Part Number: CMX218S1
• Description: ISDN data and telephony protocol engine
• Manufacturer: MX-COM, Inc.

ISDN Data and Telephony Protocol Engine (no X.25)
4.6.2
In addition to the commands, there are a group of registers for which data is entered in the following format:
AT{register}={value}<CR>. The following Hayes registers are supported:
The following is a more detailed description of the Hayes registers listed above:
S0 (Rings on Which to Auto-answer a Data Call)
S37 (Maximum Rate Adaption Speed)
This forces the baud rate when handling incoming calls, to that defined by the S37 register contents, provided
auto-answer is set. Once a call is terminated the baud rate remains that set by the S37 register.
%A2 (CSD Protocol)
Selects the protocol to be used for the circuit switched data calls. Note that %A2 cannot be changed while a
B or D-channel call is active.
4.6.2.1 V.120 Parameters
%E8 (Multiple Frame Operation Mode Selection)
In Multiple Frame Operation (MFO) mode, frames are acknowledged and retransmitted if errors occur.
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Hayes Register Set
Range
0 to 255
Value
0 (default)
9
12
13
18
31
Value
2 (default)
3
15
20
Value
0
1(default)
Default
Rate (baud)
Same as last AT speed
9600
19200
38400
57600
115200
Description
V.120 Rate Adaption on B-channel.
Voice Calls.
PPP.
Transparent protocol.
Description
MFO mode on.
MFO mode off.
S0
S37
%A2
%E8
!C4
!C5
!C6
!C7
!C8
0
- Number of rings on which to auto- answer
- Maximum rate adaption speed
- B/D - channel protocol
- V.120 MFO mode selection
- B1 - channel configuration
- B2 - channel configuration
- Multiple Subscriber Numbering
- TEI selection
- ISDN Line Failure Detection enable/disable
Description
If set to 0 auto-answering will be disabled.
Any other value will cause one ‘RING’ result code to
be sent to the DTE after which the call is answered.
19
2000 Chiron Technology Limited
CMX218 Advance Information
Doc. # 20480215.001
2000 MX-COM, Inc.