Delta 4Ax-602804-xHxx User Manual download pdf (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

2

4

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