Meridian Audio 541 Owners manual

Meridian 541 RS232 Interface.

The RS232 interface for the 541 can be operated from any terminal which 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 processor. A carriage return character will
execute the command, and backspace is also implemented. When a command is executed, the 541 will
return 12 characters.

The following table lists the commands available.

Source Commands.

CD Select CD source.
RD Select Radio.
LP Select LP.
TV Select TV.
T1 Select Tape 1.
T2 Select Tape 2.

Volume Commands.

VP Volume +.
VM Volume -.
VNnn Goto volume number (1-99).
MU Mute.

General Commands.

SB Standby.
MP Menu Plus (Up)
MM Menu Minus (Down)
MR Menu Right
ML Menu Left
N0

- Number keys.
N9
PNnn Go to preset

CR Select CDR
CB Select Cable
TX Select Teletext
V1 Select VCR 1
V2 Select CDR
LD Select Laser Disc

Other Commands.

PL Play.
ST Stop.
PS Pause.
RP Repeat.
NE Next.
PR Previous.

DI Display.
SR Store.
CL Clear.
DP Decimal Point.
FF Fast Forward.
FB Fast Back.

Duncan M Smith, 22nd February 1996