Cable characteristics for FieldBus

Author

Anderson, Stephen D.

Author_Institution

ANSCO Inc., Minneapolis, MN, USA

fYear

1992

fDate

12-14 May 1992

Firstpage

607

Lastpage

611

Abstract

FieldBus, an emerging instrument standard, provides data communication among low-power field instruments. The standard specifies a low-speed data rate, under 100 kb/s using single- and multiple-twisted-pair cables at distances up to 1900 m. The intent is to allow FieldBus instruments to be retrofitted to installed cable currently used with low-frequency, analog-signaling instruments. FieldBus represents a new application for this cable. The cable parameters of importance to data communication, attenuation and phase constants, characteristic impedance, and crosstalk, have been measured in the range of 1 kHz to 100 kHz for a group of 15 representative cables, and the results are presented. A compromise terminator that approximates the cable characteristic impedance in the measured frequency range is proposed

Keywords

data communication equipment; network interfaces; standards; telecommunication cables; 1 kHz to 100 kHz; 1900 m; FieldBus; analog-signaling instruments; attenuation; characteristic impedance; crosstalk; data communication; instrument standard; low-power field instruments; phase constants; Attenuation measurement; Communication cables; Communication standards; Crosstalk; Data communication; Field buses; Frequency measurement; Impedance measurement; Instruments; Phase measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1992. IMTC '92., 9th IEEE

Conference_Location

Metropolitan, NY

Print_ISBN

0-7803-0640-6

Type

conf

DOI

10.1109/IMTC.1992.245067

Filename

245067