User Guide - AXYS
®
UniAmp Power Amplifier Module , Model 700
8. APPENDIX
NETWORK CABLES
The type of cable necessary for correct operation
of the RS-485 network is twin twisted pair with
each pair individually shielded. Numerous cables of
this type are readily available and cables broadly
meeting the specifications given below (which are
those of a common commercially-available cable)
are likely to be suitable.
Additional information regarding network
connections and grounding strategies may be
obtained at :
http://www.jblpro.com/
SPECIFICATIONS
Please refer to the download section of our website
for product specifications.
200905/UAUG_v1.0 11
PARAMETER VALUE
Characteristic impedance 100 ohms
Capacitance (core to core) 41 pF/m
Capacitance (core to screen) 72.5 pF/m
DC resistance (core) 78.7 ohms/km
DC resistance (screen) 59.1 ohms/km
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