CMX228S1 MX-COM, Inc., CMX228S1 Datasheet - Page 22

• Manufacturer Part Number: CMX228S1
• Description: ISDN data and telephony protocol engine with x.25
• Manufacturer: MX-COM, Inc.

ISDN Data and Telephony Protocol Engine with x.25
%D10 (Channel Number)
Defines the channel number used in outgoing call setup messages.
4.6.2.3 V.120 Parameters
%E8 (Multiple Frame Operation Mode Selection)
In Multiple Frame Operation (MFO) mode, frames are acknowledged and retransmitted if errors occur.
4.6.2.4 X.25 PAD Parameters
All %L registers can be viewed using the %Ln? command.
%L3 (Selection of Data Forwarding Characters)
This register is used to specify the characters which, when received from the DTE, will cause the current
packet of data to be transmitted. If set to zero, the packet is not transmitted until either the idle timer (%L4)
expires, or the packet becomes full (%B3). The values listed below may be added together to combine the
character sets indicated. The characters are as described in the ASCII character set.
%L4 (Idle Timer)
%L10 (Line Folding)
Note: If %L3 and %L4 are both 0, characters will be forwarded as they become available.
4.6.2.5 B Channel LAPB Parameters
All !B registers can be viewed using the !Bn? command.
!B1 (LAPB T1 Timer)
!B2 (LAPB T3 Timer)
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Range
0 to 255
Value
0
1(default)
Value
0 (default)
1
2
4
8
16
32
64
Range
0 to 40
Range
0 to 255
Range
1 to 255
Range
1 to 255
Default
Description
MFO mode on.
MFO mode off.
Description
None.
A to Z, a to z and 0 to 9.
CR.
ESC, BEL, ENQ and ACK.
DEL, CAN and DC2.
ETX and EOT.
HT, LF, VT and FF.
NUL, SYN, ETB, EM, SUB, FS, GS, RS, and US.
Default
Default
Default
Default
0
0
0
3
15
Description
Channel number.
Description
Specifies the duration of the timer (in units of 1/20
second) that, when it expires, causes the contents of
the current packet to be forwarded. If set to zero, there
is no timed forwarding.
Description
Specifies the line length required. When the specified
number of characters have been sent to the DTE a
carriage return and line feed are sent to ensure that lines
do not exceed the required length. A value of zero
disables line folding.
Description
Sets the value, in seconds, of the LAPB T1 timer.
Description
Sets the value, in seconds, of the LAPB T3 timer.
22
2000 Chiron Technology Limited
CMX228 Advance Information
Doc. # 20480216.001
2000 MX-COM, Inc.