Specifications

- 3 -
Supporting BCS commands:
 BCS commands are used as much as possible, however for some functions there exist no BCS codes, for
these functions dedicated * commandos are used.
Command Command Response Protocol
Volume control COVA^^^T COVA^^^T BCS
Volume status request SOVAT SOVAT(^^^) BCS
Switch off COVMT COVMT BCS
Switch on COVUT COVUT BCS
Status request SOST SOST B15
Put amplifier in potentiometer
mode
COPT COPT B15
 ^^^ Volume in dB (value -100 tot 0) 0 is maximum amplification.
 At -100 the amplifier will be switched in stand-by.
 When no value is set, value 0 will be used (attention this is max. volume)
Status replies:
Answer Meaning
Ok Everythinh working okay
E Amplifier IC is giving an error signal.
W Amplifier IC is giving a Warning signal.
EW Amplifier IC is giving both an Error and a Warning
signal.
C o n n e c t i o n s d a t a c o n n e c t o r :
Pin Number Pin 1 (Left) Pin2 Pin3 Pin4 Pin5 (Right)
Amplifier
function
GND RS232 TX RS232 RX RS485 +
Non inverting
RS485 –
Inverting
Function Host
(PC)
GND Receive data Tansmit Data
SubD9
RS232
Pin 5 Pin 2 Pin 3 NVT NVT
SubD9
RS485
Pin 5 NVT NVT Pin 1 Pin 2
RS232 SubD 9 pinout (pin connector male/front view):