Справочник Пользователя для Zebra Technologies ZD500

Appendix: Interface Wiring
Serial Port Interface

P1062653-002 Rev. A

ZD500 Series™ Thermal Transfer Printer User’s Guide

1/16/2014

The maximum current available through the serial and/or parallel port is not to 
exceed a total of 0.75 Amps.

When XON/XOFF handshaking is selected, data flow is controlled by the ASCII 
control codes DC1 (XON) and DC3 (XOFF). The DTR control lead will have no 
effect.

Interconnecting to DTE Devices — The printer is configured as data terminal 
equipment (DTE). To connect the printer to other DTE devices (such as the serial 
port of a personal computer), use an RS-232 null modem (crossover) cable. Figure 
31 shows the required cable connections.

Connecting to the KDU (Keyboard Display Unit) — The original KDU was 
designed for DCE printer connections and requires a Zebra custom serial port 
gender changing adapter. The KDU now includes the KDU adapter and the Zebra 
kit part number for the KDU Adapter is 105934-088. The ZKDU and KDU Plus 
both automatically detect the interface 

1

Not used

2

RXD (receive data) input to the printer

3

TXD (transmit data) output from the printer

4

DTR (data terminal ready) output from the printer -- controls 
when the host may send data

5

Chassis ground

6

DSR (data set ready) input to the printer

7

RTS (request to send) output from the printer -- always in the 
ACTIVE condition when the printer is turned on

8

CTS (clear to send) - Not used by the printer

9

+5 V @ 0.75 A - fused

DB-25S 
Connector 
to DTE Device (PC) 

DB-9P

Connector

to Printer

DB-9P

Connector

to Printer

DB-9S 
Connector 
to DTE Device (PC)