Establishing communication, System considerations 25, Interfaces 25 – Zebra Technologies R-140 User Manual

Page 35: Data specifications 25, Data spec i fi ca tions 25, In ter faces 25, Sys tem con sid er ations 25, Cabling requirements

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When communicating via the parallel

port (refer to Figure 13), the

previously mentioned parameters are

not considered. Refer to

page 57

to

configure the communication

parameters for the printer. The

values selected must be the same as

those used by the host equipment

connected to the printer.
For serial and parallel pinout and

technical information, refer to the

Appendix on page 99

.

Cabling Requirements

Data cables must be fully shielded and fitted with metal or metalized

connector shells. Shielded cables and connectors are required to prevent

radiation and reception of electrical noise.
To minimize electrical noise pickup in the cable:

n

Keep data cables as short as possible.

n

Do not bundle the data cables tightly with the power cords.

n

Do not tie the data cables to power wire conduits.

NOTES: Zebra printers comply with FCC “Rules and Regulations”,

Part 15, for Class B Equipment, using fully shielded data

cables. Use of unshielded cables may increase radiated

emissions above the Class B limits.

RS-422 and RS-485 applications should use twisted shielded

pairs as recommended in the Appendix of the TA/EA.-485

Specification.

26 Zebra R-140 User’s Guide

10’ maximum

25-pin

male

Computer

Printer

36-pin

male

PC

25-pin

female

Figure 13

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