10
The ENDAT-4946i/M System Board
CN4: CRT Connector
Pin No.
Function
Pin No.
Function
1
RED
9
n/c / +5V
2
GREEN
10
GND
3
BLUE
11
n/c
4
n/c
12
DDC DAT
5
GND
13
H-Sync
6
GND
14
V-Sync
7
GND
15
DDC CLK
8
GND
CN6: COM4 Pin Header (RS-232)
Pin No.
Function
Pin No.
Function
1
DCD
6
DSR
2
RXD
7
RTS
3
TXD
8
CTS
4
DTR
9
RI
5
GND
10
n/c
D-SUB Type Connector for COM2 port (RS-422
4 Wire)
Pin No.
Function
Pin No.
Function
1
–TXD
6
NA
2
+RXD
7
NA
3
+TXD
8
NA
4
NA
9
–RXD
5
NA
D-SUB Type Connector for COM2 port (RS-485
2 Wire)
Pin No.
Function
Pin No.
Function
1
Data –
6
NA
2
NA
7
NA
3
Data +
8
NA
4
NA
9
NA
5
NA
