Specifications

TECHNICAL SUPPORT: 1.800.283.5936 (USA) OR 1.801.974.3760
APPENDIX E • SERIAL COMMANDS
135
Matrix Attenuation Adjust
DESCRIPTION:
This command selects/reports the matrix level at the cross point.
** Note: Values indicate entry range only. Actual internal range of the gain stage is from –60 to 0 and absolute values
will be limited to the internal gain range. Absolute levels below –60 will mute the gain stage.
BINARY FORM DETAILS
COMMAND FORM: <Header><Argument 1><Argument 2>
COMMAND ID: 40
ARGUMENT SIZE: 2 words
ARGUMENT FORM:
Name: SrcChannel SrcGroup Dest Channel Dest Group Value
Size 8 bits 8 bits 8 bits 8 bits 32 bits
Type Unsigned integer Unsigned intgr Unsigned integer Unsgnd intgr Signed Float
Range See Group and Chnnls 1, 3, 5, 7, 8 See Grp and Chnnls 2, 5, 8 -99 to 99.0
(Table 1, page 93) (I, M, P, L, E) (Table 1, page 93) (O, P, E) use absolute/
relative flag in
header
RETURN VALUES:
Unit always returns the last executed MTRXLVL selection in the same form as above.
TEXT FORM DETAILS
COMMAND FORM:
<DEVICE> MTRXLVL < SrcChannel > < SrcGroup > < Dest Channel > <Dest Group> [Value A/R]
Where:
DEVICE: See General Text command form Description
MTRXLVL Text Command
SrcChannel See Group and Channels (Table 1, page 93)
SrcGroup ‘I’, ‘M’, ‘P’, ‘L’, ‘E’ See Group and Channels (Table 1, page 93)
Dest Channel See Group and Channels (Table 1, page 93)
SrcChannel ‘O’, ‘P’, ‘E’ See Group and Channels (Table 1, page 93)
Value Selects the amount of attenuation at cross point in dB. If null command returns current
attenuation
A/R
X=R parameter to indicate relative
X=A parameter to set the gain to an absolute value
X=Null parameter will default to R (relative)
RETURN VALUES
The command will return the updated level of the matrix for the selected source and destination in the same format
as the command was issued. All return gain values are absolute and reflect the actual internal gain in the matrix.
If Command Returns
Input 9 and Output 9 cross point level is desired (level was previously set to –10dB) DEVICE MTRXLVL 9 I 9 O –10
Input 3 and Expansion Bus W cross point level is desired to be –6dB DEVICE MTRXLVL 3 I W E –6