J7: (jrs232) serial port connector, Jrs232), Circuitry for j7- jrs232 interface – Delta Tau MACRO CPU BOARD 4Ax-602804-xHxx User Manual
Page 28
MACRO-CPU Hardware Reference
J7: (JRS232) Serial Port Connector
(10-pin Header at Location C-1)
Front View
Pin #
Symbol
Function
Description
Notes
1 N.C.
No
connection
2
DTR
BIDIRECT
Data Terminal Ready
Just tied to “DSR”
3
TXD/
OUTPUT
Send Data
Transmit data to host
4
CTS
INPUT
Clear to Send
Host Ready bit
5 RXD/
INPUT Receive
Data
Receive data from host
6
RTS
OUTPUT
Request to Send
PMAC Ready bit
7
DSR
BIDIRECT
Data Set Ready
Just tied to “DTR”
8 N.C.
OUTPUT No
Connection
9 GND
COMMON
PMAC
Common
10
+5V
OUTPUT
+5VDC Supply
Power supply out
+5V
GND
+5V
TXD-
TXD
CTS
RXD-
RXD
RTS
CTS-
J7
HEADER 10
1
2
3
4
5
6
7
8
9
10
C16
.1UF
C17
.1UF
C18
.1UF
C14
.1UF
C15
.1UF
U5
MAX202ECSE
(SOL16)
2
1
3
11
12
10
9
16
6
4
5
14
13
7
8
15
+V
C1+
C1-
TXD
RXD
RTS
CTS
VCC
V-
C2+
C2-
TXD
RXD
RTS
CTS
VSS
GND
TXD-
RXD-
CTS
RTS
DSR
DTR
(JRS232)
N.C.
N.C.
+5V
J7
Circuitry for J7- JRS232 Interface
3U MACRO-CPU Board Connector Pin-outs
24