FIR-ULV600-DVR Main Board
74
CON5
Inverter and K/B signal connector connects to the main board CN6 and CN10
PIN No.
Description
PIN No.
Description
1
Vcc
6
GND
2
KB-CK
7
VIN
3
PC-CK
8
VIN
4
KB-DA
9
GND
5
PC-DA
10
ON/OFF
CON6
COM3/USB x2 signal connector connects to the main board CN7
PIN No.
Description
PIN No.
Description
1
DM-1
6
DSR
2
DP-1
7
TX
3
DM-0
8
RX
4
DP-0
9
NC
5
Vcc
10
RTS
CON7
60Keys Keyboard signal connector
PIN
Description
PIN
Description
1 GND 11 GND
2 GND 12 RXD2
3 DM-31 13 TXD2
4 DP-31 14 RTS2
5 DM-00 15 CTS2
6 DP-00 16 DTR2
7 PC-CK1 17 DSR2
8 PC-CK 18 NC
9 PC-DA1 19 +12V
10 PC-DA 20 +12V
CN8 USB1
Connector
PIN
Description
1 +5V
2 D-
3 D+
4 GND
