Zebra Technologies Corporation RFID-Z4M-01 사용자 설명서

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R4Mplus User Guide

Serial Data Port

For all RS-232 input and output signals, the R4Mplus printer follows both the Electronics 
Industries Association (EIA) RS-232 and the Consultative Committee for International 
Telegraph and Telephone (CCITT) V.24 standard signal level specifications.

When DTR/DSR handshaking is selected, the Data Terminal Ready (DTR) control signal 
output from the printer controls when the host computer may send data. DTR ACTIVE 
(positive voltage) permits the host to send data. When the printer places DTR in the 
INACTIVE (negative voltage) state, the host must not send data.

Request to send (RTS) is a control signal from the printer that is connected to the clear to send 
(CTS) input at the host computer. RTS is always active (positive voltage) when the printer 
is on.

The connection for this standard interface is made through the female DB-9 connector on the 
rear panel. A DB-9 to DB-25 interface module is required for all RS-232 connections through 
a DB-25 cable (see 

For all RS-232 input and output signals, the printer follows both the Electronics Industries 
Association’s (EIA) RS-232 specifications and the Consultative Committee for International 
Telegraph and Telephone (CCITT) V.24 standard signal level specifications.

 shows the pin configuration and function of the rear panel serial data connector on 

the printer.

Note • When XON/XOFF handshaking is selected, data flow is controlled by the ASCII 
Control Codes DC1 (XON) and DC3 (XOFF). The DTR Control lead has no effect.

1

—

Not connected

2

RXD

Receive data—data input to printer

3

TXD

Transmit data—data output from printer

4

DTR

Data terminal ready—output from printer

5

SG

Signal ground

6

DSR

Data set ready—input to printer