User`s manual
INSTALLATION 
8  ET500 User’s Manual 
3. X3 (VGA, LCD, Video, COM1, COM2, LPT, IrDA, Mouse, 
Keyboard)  
Pin Signal Pin Signal Pin Signal Pin Signal
1 GND 
2 
GND 51  N C  52  N C 
3 R 4 B 53 VCC 54 GND 
5 HSY 6  G  55 /STB 5 6 /AFD
7 VSY 8 DDCK 57 ic. 58 PD7 
9  NC  10 DDDA 59 IRRX 60 /ERR
11 NC 12 NC 61 IRTX 62 PD6 
13 NC 14 NC 63 RXD2 64 /INIT
15 GND 16 GND 65 GND 66 GND 
17 NC 18 NC 67 RTS2J 68 PD5 
19 NC 20 NC 69 DTR2J 70 /SLIN
21 GND 22 GND 71 DCD2J 72 PD4 
23 TX3# 24  NC  73 DSR2J 74  PD3 
25 TX3 26  NC  75 CTS2J 76 PD2 
27 GND 28 GND 77 TXD2J 78 PD1 
29 TX2# 30 TXCLK 79  RI2J  80  PD0 
31 TX2 32 TXCLK# 81 VCC  82 VCC
33 GND 34 GND 83 RXD1 84 /ACK
35 TX0 36 TX1 85 RTS1J 86 /BUSY
37 TX0# 38 TX1# 87 DTR1J 88  PE 
39 VCC 40 VCC 89 DCD1J 90 /SLCT
41 NC 42 NC 91 DSR1J 92 MSCLK
43  NC  44 BLON# 98  CTS1J  94 MSDAT
45 NC 46 DIGON 95 TXD1 96 KBCLK
47 NC 48 NC 97 RI1J 98 KBDAT
49 NC 50 NC 99 GND 100 GND 










