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| − | The AlphaCom supports a subset of the MPC data protocol used with the classic Stentofon [[TouchLine]] exchanges. As it allows control of the AlphaCom exchange by mapping MPC commands to AlphaCom commands one-to-one it can be thought of as a variant of the simple link layer, but only for single-exchange (not AlphaNet) applications. | + | The AlphaCom supports a subset of the MPC data protocol used with the classic Stentofon [[TouchLine]] exchanges. As it allows control of the AlphaCom exchange by mapping MPC commands to AlphaCom commands one-to-one it can be thought of as a variant of the [[Data link layer#Stentofon Simple Link Layer|simple link layer]], but only for single-exchange (not AlphaNet) applications. |
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| − | The output is broadcast of exchange events like dialled digits, station busy/free, connection and transfers. Note that it’s possible to send additional data strings from the AlphaCom’s Event Handler on this port also. | + | The output is broadcast of exchange events like dialled digits, station busy/free, connection and transfers. Note that it’s possible to send additional data strings from the AlphaCom’s [[Event Handler]] on this port also. |
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| − | The AlphaCom supports a subset of the MPC Data Protocol for backward compatibility. This allowed some TouchLine generation equipment like [[PNCI]], [[MLH]] and [[CRM]] to be used with the AlphaCom. | + | The AlphaCom supports a subset of the MPC Data Protocol for backward compatibility. This allowed some TouchLine generation equipment like PNCI, MLH and CRMIII/IV to be used with the AlphaCom. |
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| − | == Availability ==
| + | As from software 11.2.3.5 the MPC input commands also support global numbers, i.e. the command will be routed to the correct node. |
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| − | AlphaCom has supported a serial data port which outputs TouchLine formatted output messages since AMC 03.00.
| + | '''See also:''' [[MPC data trace]] |
| − | From software AMC 07.60, a limited subset of TouchLine input commands are supported also.
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| − | == Disclaimer ==
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| − | The TouchLine input commands have been implemented by translating them to existing AlphaCom data protocol commands. This means that the commands may not behave 100% identical compared to a TouchLine exchange in all possible situations. You should think of it as a simple ASCII link layer protocol to AlphaCom functionality.
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| − | == Tips for use ==
| + | [[Category:Protocols]] |
| − | Many AlphaCom features require additional parameters, which can not be supplied when using TouchLine message format. A possible workaround is to use the Event Handling, where you can set up action commands with many parameters.
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| − | * Create a directory number bbbb with feature 85, "Event trigger"
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| − | * In the Event Handler, add an "Event Trigger Feature" event on station aaaa.
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| − | This occurs when bbbb is dialed on station aaaa.
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| − | * Configure the desired action commands for the event. The action can be as complex as you like.
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| − | Now you can use the “H aaaa bbbb” TouchLine command to execute the configured action.
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| − | == Data Port ==
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| − | The physical data port where the TouchLine compatible data appears is programmable using AlphaPro.
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| − | (The default port is Port 1).
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| − | The data port is an EISA RS232C compatible interface.
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| − | The format for data transmission is programmable. The default format is:
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| − | * 9600 baud
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| − | * 7 bits ASCII characters
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| − | * even parity
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| − | * 1 stop bit
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| − | == Protocol Output Format ==
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| − | The protocol format is equal to the format used by the TouchLine Exchange, each data message consists of a variable number of data records consisting of 4 hexadecimal digits (ASCII) each. In addition there are control characters in between:
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| − | <NUL> <head> <SP> <data record> <SP> (<data record> <SP> .....) <CR LF>
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| − | <NUL> ASCII NUL character
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| − | <head> number of records - head inclusive (2 hex digits), message code (2 hex digits)
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| − | <SP> ASCII space
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| − | <data record> Four hexadecimal digits
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| − | <CR LF> ASCII Carriage Return, Line Feed.
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| − | == Message filtering ==
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| − | There is a data filtering system in AlphaCom to prevent that all reportable events in a high traffic situation are reported when it is not necessary. As default all stations in the system belongs to the report group called "[[MONITOR_ST_GROUP]]".
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| − | Not all the supported events are among the subset of events comprising the "MONITOR_ST_GROUP". Through special programming of the AlphaCom, events may be added or taken out of the reporting group (not supported by [[AlphaPro]], use [[TST]]).
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| − | === Additional output messages ===
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| − | From AMC 07.60 it’s possible to generate messages on the MPC output port from the Event Handler.
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| − | Use the action $MPC 2 “xxxx xxxx xxxx ” Observe the extra SPACE at the end which is required by some subsystems. The format’s leading NUL and trailing CR/LF are added automatically by the exchange.
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| − | This functionality can be used for several purposes:
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| − | * Generate additional (missing standard) messages
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| − | * Send MPC data to another exchange in AlphaNet
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| − | == TouchLine Output Messages ==
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| − | == TouchLine Input Messages ==
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| − | [[Category:AlphaCom E Software]] | |
The AlphaCom supports a subset of the MPC data protocol used with the classic Stentofon TouchLine exchanges. As it allows control of the AlphaCom exchange by mapping MPC commands to AlphaCom commands one-to-one it can be thought of as a variant of the simple link layer, but only for single-exchange (not AlphaNet) applications.
The output is broadcast of exchange events like dialled digits, station busy/free, connection and transfers. Note that it’s possible to send additional data strings from the AlphaCom’s Event Handler on this port also.
The AlphaCom supports a subset of the MPC Data Protocol for backward compatibility. This allowed some TouchLine generation equipment like PNCI, MLH and CRMIII/IV to be used with the AlphaCom.
As from software 11.2.3.5 the MPC input commands also support global numbers, i.e. the command will be routed to the correct node.
See also: MPC data trace
