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P474W/P474UU/P554W/P554U Installation Guide
Desktop and Ceiling Mount
PC Control Codes
Function
POWER ON
POWER OFF
INPUT SELECT Computer
INPUT SELECT HDMI1
INPUT SELECT HDMI2
INPUT SELECT Video
INPUT SELECT Computer
INPUT SELECT HDBaseT
PICTURE MUTE ON
PICTURE MUTE OFF
SOUND MUTE ON
SOUND MUTE OFF
AUTO ADJUST
Cable Connection
Communication Protocol:
38400 bps (for cable lengths longer than 20', it is recommended changing to 9600 bps in setup menu)
Baud Rate:
Data Length:
8 bits
Parity:
No Parity
Stop Bit:
One bit
X on/off:
None
Communications: Full duplex
PC Control Connector (D-Sub 9P)
NOTE 1 : Pins 1, 4, 6, and 9 are used inside the projector.
NOTE 2: For long cable runs it is recommended to set communication speed within the projector to 9600 bps.
NOTE 3: Jumper "Request to Send" and "Clear to Send" together on both ends of the cable to simplify cable connection.
www.necdisplay.com
Code Data
02H
00H
00H
00H
02H
01H
00H
00H
02H
03H
00H
00H
02H
03H
00H
00H
02H
03H
00H
00H
02H
03H
00H
00H
02H
03H
00H
00H
02H
03H
00H
00H
02H
10H
00H
00H
02H
11H
00H
00H
02H
12H
00H
00H
02H
13H
00H
00H
02H
0FH
00H
00H
P474W/P474U/P554W/P554U
NEC Display Solutions of America, Inc.
00H
02H
00H
03H
02H
01H
01H
09H
02H
01H
A1H
A9H
02H
01H
A2H
AAH
02H
01H
06H
0EH
02H
01H
01H
09H
02H
01H
BFH
C7H
00H
12H
00H
13H
00H
14H
00H
15H
02H
05H
00H
18H
To TxD of PC
To RxD of PC
To GND of PC
1
2
3
4
5
6 7
8
9
To RTS of PC
To CTS of PC
Rev 1.0
Page 9 of 14
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