Acer ET221Q User Manual page 16

19-pin color display signal cable
PIN No. Description
1 TMDS Data2+
3 TMDS Data2-
5 TMDS Data1 Shield
7 TMDS Data0+
9 TMDS Data0-
11 TMDS Clock Shield
13 CEC
15 SCL
17 DDC/CEC Ground
19 Hot Plug Detect
24-pin color display signal cable
PIN No. Description
1 TMDS data 2-
2 TMDS data 2+-
3 TMDS data 2/4 shield
4 NC
5 NC
6 DDC clock
7 DDC data
8 NC
9 TMDS data 1-
10 TMDS data 1+
11 TMDS data 1/3 shield
12 NC
PIN No. Description
2 TMDS Data2 Shield
4 TMDS Data1+
6 TMDS Data1-
8 TMDS Data0 Shield
10 TMDS Clock+
12 TMDS Clock-
14 Reserved (N.C. on device)
16 SDA
18 +5V Power
PIN No. Description
13 NC
14 +5 V power
GND (return for +5 V hsync.
15
vsync)
16 Hot-plug detection
17 TMDS data 0-
18 TMDS data 0+
19 TMDS data 0/5 shield
20 NC
21 NC
22 TMDS clock shield
23 TMDS clock+
24 DDC TMDS clock-
5