NEC Display Solutions of America, Inc.
P452W/P452H/P502W/P502H Installation Guide
Desktop and Ceiling Mount
Rev 1.0
www.necdisplay.com
P452W/P452H/P502W/P502H
Page 8 of 9
PC Control Codes
Function
Code Data
POWER ON
02H
00H
00H
00H
00H
02H
POWER OFF
02H
01H
00H
00H
00H
03H
INPUT SELECT COMPUTER
02H
03H
00H
00H
02H
01H
01H
09H
INPUT SELECT HDMI 1
02H
03H
00H
00H
02H
01H
1AH
22H
INPUT SELECT HDMI 2
02H
03H
00H
00H
02H
01H
1BH 23H
INPUT SELECT VIDEO
02H
03H
00H
00H
02H
01H
06H
0EH
INPUT SELECT APPS
02H
03H
00H
00H
02H
01H
20H
28H
INPUT SELECT HDBaseT
02H
03H
00H
00H
02H
01H
22H
2AH
PICTURE MUTE ON
02H
10H
00H
00H
00H
12H
PICTURE MUTE OFF
02H
11H
00H
00H
00H
13H
SOUND MUTE ON
02H
12H
00H
00H
00H
14H
SOUND MUTE OFF
02H
13H
00H
00H
00H
15H
Cable Connection
Communication Protocol:
Baud Rate:
38400 bps (for cable lengths longer than 20’, it is recommended changing to 9600 bps in setup menu)
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.
