DSP420 RS232
Data from DS 6ii03
Meridian DSP420 RS232 Interface.
General Information
The RS232 interface for the DSP420 can be operated from any terminal that operates at 9600 baud
with 1 start bit, 1 stop bit and no parity. Commands take the form of 2 ASCII characters, in some
cases followed by a signed argument (‘nn’ below). All characters are echoed by the speaker. A
carriage return character will execute the command and backspace is also implemented. When a
command is executed, the speaker will return 8 characters.
Basic Functions
The following tables list the basic commands available and show examples of the messages
returned. In each case the message retuned via RS232 corresponds with the display on the front
panel of the processor.
Source Commands
RS232 Command Description Message Returned
CD Select CD source
RD Select Radio
LP Select LP
TV Select TV
T1 Select Tape 1
T2 Select Tape 2
CR Select CDR
CB Select Cable
DV Select DVD
V1 Select VCR 1
V2 Select VCR 2
LD Select Laser Disc
Volume Commands
RS232 Command Description Message Returned
VP Volume +
VM Volume VNnn Go to volume (1-99)
MU Mute
SB Standby
POnn Position Setting, 0=Normal, 1=High, 2=Corner
BNnn Bass setting
TNnn Tilt Setting
LNnn Balance setting
%inn Input 1=D1, 2=D2
PHnn Phase
CD 65
Radio 65
LP 65
TV 65
Tape1 65
Tape2 65
CDR 65
Cable 65
DVD 65
VCR1 65
VCR2 65
LDisc 65
CD 66
CD 64
CD 87
Mute
Standby
Normal
B. +2.0
T. -3.0
L. +3
Input D1
Phase +
Information
Meridian Audio Limited, Stonehill, Stukeley Meadows, Huntingdon, Cambs PE29 6EX
Tel +44 1480 445678 Fax +44 1480 445686
http://www.meridian-audio.com/
DSP420 RS232
Information
Data from DS 6ii03
Additional Source Commands – Correspond to MSR4 keys
RS232 Command Description RS232 Command
PL Play rp AB Repeat
ST Stop AB AB Repeat
PS Pause PH Phase
RP Repeat TB T (MSR 3)
NE Next #B # button
PR Previous CH Chapter (MSR3)
DI Display SE Setup
SR Store ME Menu
CL Clear RT Return
DP Decimal Point EN Enter
FF Fast Forward TM Top menu
FB Fast Back NP Next page
N0 – N9 Number keys 0 - 9 PP Previous page
OP Open cl Fn Clear
MO Mono sr Fn Store
TI Title di Fn Display
SL Slow mu Fn Mute
BA Band mp Fn Menu U
AU Audio mm Fn Menu D
SU Subtitle on/off ml Fn Menu L
su Subtitle choice mr Fn Menu R
OS OSD vp Fn Volume Up
RC Record vm Fn Volume Down
AN Angle
Description
Meridian Audio Limited, Stonehill, Stukeley Meadows, Huntingdon, Cambs PE29 6EX
Tel +44 1480 445678 Fax +44 1480 445686
http://www.meridian-audio.com/