Grass Valley Performer SD - Manual (Page 161)

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Serial Protocol Descriptions
TEN–XL ASCII Protocol
The TEN–XL ASCII protocol is one of two serial control protocols
(the other is modified SMPTE) used by the TEN–XL Series
Routing Switchers. If you are currently controlling a TEN–XL
using this protocol and wish to add or substitute a Performer, this
allows you to do so with no programming changes. Commands in
this protocol are 7 bit ASCII, the eighth bit is used for parity if
parity is configured or set to 0.
A Status Request command line consists of a series of bytes in
the following format:
<STX> STX character (02H).
<Dest Hi> ‘0’-’9’, destination high digit (30H-39H).
<Dest Lo> ‘0’-’9’, destination low digit (30H-39H).
<ENQ> ENQ character (05H).
A Crosspoint Select command line consists of a series of bytes in
the following format:
<STX> STX (02H).
<Dest Hi> ‘0’-’9’, destination high digit (30H-39H).
<Dest Lo> ‘0’-’9’, destination low digit (30H-39H).
<Video> ‘0’-’9’, video crosspoint (30H-39H).
<Audio> ‘0’-’9’, audio crosspoint (30H-39H).
Response to both commands is a series of bytes in the following
format:
<Video> ‘0’-’9’, video crosspoint (30H-39H).
<Audio> ‘0’-’9’, audio crosspoint (30H-39H).
<PS> ‘3’: power supplies OK (33H).