IMP-400UHD User Guide
19
6.3.1 Cables
If the video is 4K format, the TMDS data rate (transmission speed) is 18 Gbps at maximum. If a high-speed
HDMI cable, the TMDS data rate becomes 10.2 Gbps at maximum, and video cannot be displayed stably.
Use an 18 Gbps high-speed cable according to each 4K format.
The maximum distance varies depending on the cable type, characteristics of the source device and monitor;
the best cable for each format is recommended.
[Table 6.1] 18 Gbps high-speed cable for 4K format
TMDS Data rate (Gbps)
RGB, YCbCr 4:4:4
YCbCr 4:2:2
YCbCr 4:2:0
4K Format
24 bit
30 bit
36 bit
24 bit
30 bit
36 bit
24 bit
30 bit
36 bit
3840x2160p (24/25/30)
10.2
Gbps
18
Gbps
18
Gbps
10.2
Gbps
10.2
Gbps
10.2
Gbps
-
-
-
4096x2160 (24/25/30)
10.2
Gbps
18
Gbps
18
Gbps
10.2
Gbps
10.2
Gbps
10.2
Gbps
-
-
-
3840x2160p (50/59.94/60)
18
Gbps
-
-
18
Gbps
18
Gbps
18
Gbps
10.2
Gbps
18
Gbps
18
Gbps
4096x2160 (50/59.94/60)
18
Gbps
-
-
18
Gbps
18
Gbps
18
Gbps
10.2
Gbps
18
Gbps
18
Gbps
18 Gbps: 18 Gbps high-speed transmission cable, 10.2 Gbps: 10.2 Gbps transmission cable, -: N/A
Note:
If a cable joint (JJ) or the like is used and a cable is extended, video may be interrupted or not be output.
For analog audio and RS-232C, cables have to be processed.
【
See: 6.3.2 Connecting audio cables
【
See: 6.3.3 Connecting RS-232C cable