Acrosser AR-B1894 - Manual (Page 16)

2.3.7 COM1 / VGA & COM2 Connector (COM2, VGA_COM1)
COM1 / COM2
PIN No. Description
1 Data Carrier Detect
2 Received Data
3 Transmit Data
4 Data Terminal Ready
5 Ground
6 Data Set Ready
7 Request To Send
8 Clear To Send
9 Ring Indicator
10 Not used
VGA
Description PIN No. PIN No. Description
Green Signal 2 1 Red Signal
NC 4 3 Blue Signal
Ground 6 5 Ground
Ground 8 7 Ground
Ground
10 9 +5V
DCC_DATA 12 11 NC
VSYNC 14 13 HSYNC
15 DCC_CLK