21
English
Pin assignments and signal names for SERIAL
Terminal
6
7
8
9
1
3
4
5
2
Pin No.
Signal Name
NC (not connected)
RXD
TXD
Non use
GND (Ground)
Non use
RTS
Shorted in this set
CTS
NC (not connected)
These signal names are those of computer
specifications.
Communication parameters
Signal level: RS-232C compliant
Synchronization method: Asynchronous
Baud rate: 9600 bps
Parity: None
Character length: 8 bits
Stop bit: 1 bit
Flow control: None
Basic format for control data
The transmission of control data from the computer
starts with a STX signal, followed by the command, the
parameters, and lastly an ETX signal in that order. If
there are no parameters, then the parameter signal does
not need to be sent.
STX C1 C2 C3
P1 P2 P3 P4
:
P5
ETX
Start
(02h)
3-character command
(3 bytes)
Colon
Parameter(s)
(1 - 5 bytes)
End
(03h)
Command
Command
Parameter
Control details
PON
None
Power ON
POF
None
Power OFF
AVL
**
Volume 00 - 63
AMT
0
Audio MUTE OFF
1
Audio MUTE ON
IMS
None
Input select (toggle)
SL1
SLOT 1 input
(SLOT1)
S1A
SLOT 1A input
(SLOT1A)
S1B
SLOT 1B input
(SLOT1B)
SL2
SLOT 2 input
(SLOT2)
SL2A
SLOT 2A input
(SLOT2A)
SL2B
SLOT 2B input
(SLOT2B)
HM1
HDMI 1 input
(HDMI1)
HM2
HDMI 2 input
(HDMI2)
HM3
HDMI 3 input
(HDMI3)
HM4
HDMI 4 input
(HDMI4)
DP1
DisplayPort input
(DisplayPort)
DV1
DVI-D IN input
(DVI-D)
PC1
PC IN input (PC)
DL1
DIGITAL LINK input
(DIGITAL LINK)
