
CBR-5009B and CBR-4004 Paddleboards
EBX-18 Hardware Reference manual
52
J4
I/O
C
ONNECTOR
The J4 50-pin I/O connector on the EBX-18 contains signals for use by the CBR-5009B
paddleboard. Table 39 shows how the pins of the EBX-18’s J4 connector map to the connectors
on the VL-CBR-5009 paddleboard.
Table 39: EBX-18 J4 I/O Connector Pinout
J4
Pin
CBR-5009B
Connector
Pin
Signal
J4
Pin
CBR-5009B
Connector
Pin
Signal
1
1
Data Carrier Detect
RS-232
RS-422/
RS-485
2
6
Data Set Ready
26
1
Ground
Ground
3
COM1
2
Receive Data
27
COM4
5
RTS
TxD+
4
7
Request to Send
28
4
TXD
TxD-
5
J3
3
Transmit Data
29
J5
–
Ground
Ground
6
8
Clear to Send
30
2
RXD
RxD-
7
Top DB9
4
Data Terminal Ready
31
3
CTS
RxD+
8
9
Ring Indicator
32
–
Ground
Ground
9
5
Ground
33
Mouse
4
+5V (Protected)
10
1
Data Carrier Detect
34
J4
1
Mouse Data
11
6
Data Set Ready
35
Top
3
Ground
12
COM2
2
Receive Data
36
5
Mouse Clock
13
7
Request to Send
37
PBRESET
1
Pushbutton Reset
14
J3
3
Transmit Data
38
S1
2
Ground
15
8
Clear to Send
39
(Reserved)
1
Ground
16
Bottom DB9
4
Data Terminal Ready
40
2
Not connected
17
9
Ring Indicator
41
3
Ground
18
5
Ground
42
4
Not connected
RS-232
RS-422/
RS-485
43
Keyboard
4
+5V (Protected)
19
1
Ground
Ground
44
J4
1
Keyboard Data
20
COM3
5
RTS
TxD+
45
Bottom
3
Ground
21
4
TXD
TxD-
46
5
Keyboard Clock
22
J6
–
Ground
Ground
47
PLED
1
+5V (Protected)
23
2
RXD
RxD-
48
D1
2
Programmable LED
24
3
CTS
RxD+
49
Speaker
1
+5V (Protected)
25
–
Ground
Ground
50
SP1
2
Speaker Drive