Ensemble Designs 9430 Flexible Matrix Router for 3G / HD / SD / ASI - Manual (Page 113)

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Avenue 9430 Flexible Matrix Router Installation, Configuration and Operations Guide
7.1.1 Protocol Requirements
• Sources and destinations are numbered starting at 0.
• All commands begin with the ASCII STX character (02H).
• Receipt of STX in the middle of a command discards all collected bytes and begins a new
command.
• Errors of any kind (e.g., missing parameters, unexpected characters, out of range values, etc.)
result in discarding the current command.
• Parsing will not tolerate any additional characters within a command. For example, spaces
embedded within a command will cause the command to be discarded.
• Audio crosspoints are ignored on switching requests. In the Command Response message, the
audio source is always reported as ‘0’ (30H).
• The Power Supply status returned in the Command Response message is always reported as ‘3’
(33H), which means okay.
• The protocol requires 2 digits to specify a destination. This 2-digit number represents a
decimal number. For example, a destination that is specified with a high digit of ‘1’ and a low
digit of ‘2’ represents the decimal number 12.
7.1.2 Commands
This section lists the commands supported in the TEN-XL ASCII protocol.
Status Request Command
Description: This command requests the current source selected on the specified destination.
Syntax: <STX><Dest High><Dest Low><ENQ>
<STX> Start character (02H)
<Dest High> High byte of destination number.
Valid range is ‘0’ to ‘9’ (30H to 39H)
<Dest Low> Low byte of destination number.
Valid range is ‘0’ to ‘9’ (30H to 39H)
<ENQ> Enquiry character (05H)
Example: Request the status for destination number 13. Assume that the video source assigned
to this destination is 7.
Request: In Hex 02 31 33 05
In ASCII <STX>13<ENQ>
Response: In Hex 37 30 33
In ASCII 703