Atop-technology SE5002 User manual Manuale Utente Scaricare il pdf (Pagina 40)

User manual Version 1.3

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Ethernet Serial Server SE5002

- 39 -

A.3.1.2 SE5002-S55is (RS-422/RS-485)

A.3.2.1 DB9 Pin Assignments

The pin assignments of DB9 connector on SE5002 are shown in the following table:

Pin#

RS-232

Full Duplex

for SE5002 Model

RS-485/RS422

2 wire, Half Duplex

for SE5002 Model

RS-485

4 wire, Full Duplex

for SE5002 Model

1 DCD N/A N/A

2 RXD N/A (reserved)

TXD+

3 TXD

DATA+

RXD+

4 DTR N/A N/A

5 SG (Signal Ground) SG (Signal Ground) SG (Signal Ground)

6 DSR N/A N/A

7 RTS

DATA- RXD-

8 CTS N/A (reserved)

TXD-

9 N/A N/A N/A

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 59 60

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Atop-technology SE5002 User manual Manuale Utente Pagina 40