DSP420 RS232
Information
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 | CD | 65 |
RD | Select Radio | Radio 65 | |
LP | Select LP | LP | 65 |
TV | Select TV | TV | 65 |
T1 | Select Tape 1 | Tape1 65 | |
T2 | Select Tape 2 | Tape2 65 | |
CR | Select CDR | CDR | 65 |
CB | Select Cable | Cable 65 | |
DV | Select DVD | DVD | 65 |
V1 | Select VCR 1 | VCR1 | 65 |
V2 | Select VCR 2 | VCR2 | 65 |
LD | Select Laser Disc | LDisc 65 | |
Volume Commands
RS232 Command | Description |
| Message Returned |
VP | Volume + | CD | 66 |
VM | Volume - | CD | 64 |
VNnn | Go to volume | CD | 87 |
MU | Mute | Mute |
|
SB | Standby | Standby | |
POnn | Position Setting, 0=Normal, 1=High, 2=Corner | Normal | |
BNnn | Bass setting | B. | +2.0 |
TNnn | Tilt Setting | T. | |
LNnn | Balance setting | L. | +3 |
%inn | Input 1=D1, 2=D2 | Input D1 | |
PHnn | Phase | Phase + | |
Meridian Audio Limited, Stonehill, Stukeley Meadows, Huntingdon, Cambs PE29 6EX
Tel +44 1480 445678 Fax +44 1480 445686
