APT TFT 750C, Manual, Page: 14 / 15

Tianjin APT Science and Technology Co., Ltd.
1001, Building 5 HuaDing, No.1 HuaKe 3 Road,
Binhai hi-tech Industrial Development Zone, Tianjin, China
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TEL: 86 22 26345859
FAX: 86 22 8371 9955
Email: apt@aptdevelop.com
25.4mm and 22.2mm （ marked with L or R ） , transfer ring must be assembled with the special
directions, pay attention to the green arrow below.
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Connector descriptions
1、
Red wire : Anode(24v/36v/48V)
2、
Blue wire : Power cord to the controller
3、
Black wire : GND
4、
Green wire : RxD (controller -> display)
5、
Yellow wire : TxD (display -> controller)
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Assist level instructions
Assist level can be customized, the highest level is 9, common used assist level see the
table below:
3 level 5 level 9 level
0 0 No power assist
1 1
2
1 2 3
4
3 5
2 6
4
7
22.2 L
Clamp L