Chapter Audio Couplet 500M Audiophile Manual page 16

Rear Panel
6 RS232 Port:
The Couplet 500M can be controlled via its RS232 control port.
A list of commands is detailed below:
#CH-CO-ON
If in Standby then exit from Standby otherwise do nothing.
#CH-CO-OFF
If not in Standby then enter Standby otherwise do nothing.
#CH-CO-RING-1..100
Set ring PWM brightness level to value specified between
1..100 and store to memory. #CH-CO-BUTTON-1..100
Set button PWM brightness level to value specified between
1..100 and store to memory.
#CH-CO-SEL_XLR
If not already selected then select XLR Input
#CH-CO-SEL_RCA
If not already selected then select RCA input.
#CH-CO-SEL_EARTHSEL_RCA-ON
. Sets EARTHSEL Relay to be connected for RCA input
#CH-CO-SEL_EARTHSEL_RCA-OFF
Sets EARTHSEL Relay to be disconnected for RCA input
#CH-CO-SEL_EARTHSEL_XLR-ON
Sets EARTHSEL Relay to be connected for XLR input
#CH-CO-SEL_EARTHSEL_XLR-OFF
Sets EARTHSEL Relay to be disconnected for XLR input
#CH-CO-MUTE
If not already muted then Mute Amplifier
#CH-CO-UNMUTE
If not un-muted then Un-Mute amplifier
CH-CO0 = Off - Turns the Couplet 500M Off remotely
CH-CO1 = On - Turns the Couplet 500M On remotely
Once a correct signal is received by the Couplet 500M, the unit will send
back the signal ' Chapter Couplet 200S OK'
9600 Baud, 8 Bit, 1 stop bit, no parity, No Flow Control
Please note that RS232 control takes precedence over manual control.
Continued
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