Atlona AT PC AVSCOMP - Manual (Page 12)

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The connection between PC-AVCOMP and remote controller with RS-232 modem cable.
Pins definition of modem cable
AT-PC-AVSCOMP Remote Controller
PIN Definition PIN Definition
1 NC 1 NC
2 TxD 2 RxD
3 RxD 3 TxD
4 NC 4 NC
5 GND 5 GND
6 NC 6 NC
7 NC 7 NC
8 NC 8 NC
9 NC 9 NC
RS-232 transmission format:
Baud Rate: 9600 bps
Data Bit: 8 bits
Parity: None
Stop Bit: 1 bit
Command / Response codes of RS-232 transmission:
“ The command / response codes are the combination of 3 bytes. the 1st, 2nd byte are text and the 3rd byte
is value.”
Remote Controller Command Codes to AT-PC-AVSCOMP
Code Comment
‘PW’+0
‘PW’+1 POWER power off
power on
‘NP’+0
‘NP’+1 N/P NTSC output
PAL output
‘FZ’+0
‘FZ’+1 FREEZE freeze image off
freeze image on
‘OV’+0
‘OV’+1 OVERSCAN underscan
overscan
‘ZM’+0
‘ZM’+1 ZOOM zoom off
zoom on
‘MU’+0
‘MU’+1 move UP move UP button release
move UP button press
RS-232 REMOTE CONTROL PROTOCOL