User Manual
Table Of Contents
- Copyright Notice
- Acknowledgement
- Packing List
- About this Document
- Safety Precautions
- FCC Statement
- ISEDC RSS Warning
- China RoHS Requirements (CN)
- China RoHS Requirement (EN)
- Table of Contents
- Chapter 1 - Product Specifications
- Chapter 2 – Hardware Information
- 2.1 Dimensions
- 2.2 Jumpers and Connectors
- 2.3 List of Jumpers
- 2.4 List of Connectors
- 2.4.1 I-PEX Connector for Wi-Fi (CN3)
- 2.4.2 LVDS Connector (CN4)
- 2.4.3 Debug Port (CN7)
- 2.4.4 Gigabit Ethernet (GbE) Port (CN8)
- 2.4.5 Dual USB Port (CN9)
- 2.4.6 Integrated USB, I2C x 2, 5V (CN11)
- 2.4.7 RS-232/422/485 Port (D-Sub 9) (CN12)
- 2.4.8 eDP Connector (CN14)
- 2.4.9 Micro-SD Card Slot (CN18)
- 2.4.10 Micro-USB OTG Port (CN21)
- 2.4.11 Nano-SIM Card Slot (CN22)
- 2.4.12 RTC Battery Connector (CN23)
- 2.4.13 DC Power Input (CN25)
- 2.4.14 mPCIe Slot for WWAN Card (CN30)
- 2.4.15 GPIO Port (CN31)
- 2.4.16 LCD Backlight Connector (CN34)
- 2.4.17 Speaker Connector (CN35)
- 2.4.18 MIPI Connector (CN37)
- 2.4.19 HDMI 1.4 Port Type A (CN38)
- 2.4.20 RS-232 Connector (CN40)
- 2.5 Function Block
- Appendix A - Mating Connectors
Chapter 2 – Hardware Information 14
Rockchip RK3288 Platform
RICO-3288
2.4.7 RS-232/422/485 Port (D-Sub 9) (CN12)
RS232 Mode
Pin
Definition
Pin
Definition
1
DCD
6
DSR
2
RX
7
RTS
3
TX
8
CTS
4
DTR
9
V out (refer to JP3)
5
GND
RS485 Mode
Pin
Definition
Pin
Definition
1
RS485_D-(B)
6
N.C
2
RS485_D+(A)
7
N.C
3
N.C
8
N.C
4
N.C
9
N.C
5
N.C
RS422 Mode
Pin
Definition
Pin
Definition
1
RS422_TX-(B)
6
N.C
2
RS422_TX+(A)
7
N.C
3
RS422_RX+(A)
8
N.C
4
RS422_RX-(B)
9
N.C
5
N.C