RTS XCP-48-RJ45 Especificações descarregar pdf (Página 11)

Chapter 4 EIA-232: DB-25 to DB-25 11

Digi DB-25 Connector Pin Assignments

DB-25 Software Handshaking (XON/XOFF) Cable

The following three-wire cable is often sufficient for a terminal, printer, or

other DTE device configured for software flow control.

Simple Terminal/Printer Cable

This cable is a three-wire null modem cable. Transmitted Data on one end

of the cable is connected to Received Data at the other end, and vice

versa. The male DB-25 end can be plugged directly into most serial

terminals and printers without any adapters. The female DB-25 end plugs

directly into any Digi DB-25 serial port.

DB-25 4-Wire Hardware Handshaking (DTR) Cable

The following four-wire cable is often sufficient for an older terminal, printer,

or other DTE device configured for DTR (hardware) flow control. However,

some terminals and printers may use a signal other than DTR for flow

control. In addition, some terminals and printers may have other cable

requirements. Consult your terminal or printer manual for this information.

For more universal compatibility, use a full-wired DB-25 terminal/printer

cable.

Chapter 2

EIA-232: DB-25 to DB-25

Signal Description DTE Use Pin #

GND Chassis Ground N/A Shell

TxD Transmitted Data Output 2

RxD Received Data Input 3

RTS Request to Send Output 4

CTS Clear to Send Input 5

DSR Data Set Ready Input 6

SG Signal Ground reference 7

DCD Data Carrier Detect Input 8

DTR Data Terminal Ready Output 20

RI Ring Indicator Input 22

DB-25 Female

(Digi End)

DB-25 Male

(Peripheral)

Signal Pin Pin Signal

TxD 2 connected to 3 RxD

RxD 3 connected to 2 TxD

SG 7 connected to 7 SG

GND shell connected to (via shield) shell GND

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 151 152

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RTS XCP-48-RJ45 Especificações Página 11