Samsung OH55A User Manual

24
Control Codes
Viewing control state (Get control command)
Header Command ID Data length Checksum
0xAA Command type 0
Controlling (Set control command)
Header Command ID Data length Data Checksum
0xAA Command type 1 Value
Command
No. Command type Command Value range
1 Power control 0x11 0~1
2 Volume control 0x12 0~100
3 Input source control 0x14 -
4 Screen mode control 0x18 -
5 Screen size control 0x19 0~255
6 Video wall mode control 0x5C 0~1
7 Safety Lock 0x5D 0~1
8 Video Wall On 0x84 0~1
9 Video Wall User Control 0x89 -
 All communications take place in hexadecimals. The checksum is calculated by adding up all values
except the header. If a checksum adds up to be more than 2 digits as shown below (11+FF+01+01=112),
the first digit is removed.
E.g. Power On & ID=0
Header Command ID Data length Data 1 Checksum
0xAA 0x11 1 "Power"
Header Command ID Data length Data 1 12
0xAA 0x11 1 1
 To control all devices connected by a serial cable simultaneously irrespective of IDs, set the ID
as "0xFE" and transmit commands. Commands will be executed by each device but ACK will not
respond.

Samsung OH55A Specifications

General

Cables included	AC
Purpose	Commercial
HDCP version	2.2
Operating hours (hours/days)	24/7
International Protection (IP) code	IP56
Internal memory	2.5 GB
Processor cores	4
Processor model	A72
Processor family	ARM Cortex
Processor frequency	1.7 GHz
Audio formats supported	AC3
Video formats supported	AVC, AVS+, H.263, H.264, HEVC, MPEG1, MPEG2, MPEG4, VC-1, VP8, VP9
Internal storage capacity	8 GB
Operating system installed	Tizen
Orientation	Horizontal/Vertical
Product color	Black
Product design	Digital signage flat panel
Placement supported	Outdoor
Bezel width (bottom)	24.9 mm
Operating temperature (T-T)	-30 - 50 °C
Operating relative humidity (H-H)	10 - 100 %
Package depth	230 mm
Package width	1358 mm
Package height	845 mm
Package weight	52600 g
AC input voltage	100 - 240 V
Heat dissipation	1809 BTU/h
AC input frequency	50 - 60 Hz
Power consumption (sleep)	0.5 W
Power consumption (standby)	- W
Power consumption (typical)	274 W
Ethernet LAN (RJ-45) ports	1
Haze rate	0 %
Pixel pitch	0.63 x 0.63 mm
Response time	8 ms
Display diagonal	55 \
Display brightness	3500 cd/m²
Vertical scan range	24 - 75 Hz
Horizontal scan range	23 - 136 kHz
LED backlighting type	Edge-LED BLU
Contrast ratio (dynamic)	100000:1
Contrast ratio (typical)	5000:1
Display number of colors	16.78 million colors
Active display area (W x H)	1209.6 x 680.4 mm

Weight and Dimensions

Depth	85 mm
Width	1260.6 mm
Height	731.4 mm
Weight	46100 g