Patton electronic 1018RC - Manual (Page 8)

Point-to-Point Twisted Pair Connection
The 6-position RJ-11 and 8-position RJ-45 jack options for the
Model 1018RC are prewired for a standard TELCO wiring environment.
Connection of a 2-wire or 4-wire twisted pair circuit between two or
more Model 1018RCs requires a crossover cable as shown in the
following diagrams.
RJ-11 Cable
SIGNAL PIN# PIN# SIGNAL
GND † 1-----------------------6 GND †
RCV- 2-----------------------4 XMT-
XMT+ 3-----------------------5 RCV+
XMT- 4-----------------------2 RCV-
RCV+ 5-----------------------3 XMT+
GND † 6-----------------------1 GND †
RJ-45 Cable
SIGNAL PIN# PIN# SIGNAL
GND † 2-----------------------7 GND †
RCV- 3-----------------------5 XMT-
XMT+ 4-----------------------6 RCV+
XMT- 5-----------------------3 RCV-
RCV+ 6-----------------------4 XMT+
GND † 7-----------------------2 GND †
† Connection to ground is optional
◊ The Model 1018RC is not sensitive to polarity
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4.3.1 TERMINAL INTERFACE CONNECTION
The RS-232 versions of the Model 1018RC use a DB-25 female to
connect the terminal interface to your computing hardware. It is pinned
according to the RS-232C/V.24 and EIA-530 interface standards. For
specific interface pin-outs, please refer to the diagram in Appendix D of
this manual.
The EIA-561 versions of the Model 1018RC use a 10 pin RJ-45 to
connect the terminal interface to your computing hardware. It is pinned
according to the EIA-561 DCE interface standard. For specific interface
pin-outs, please refer to the diagram in Appendix D of this manual.
4.3.2 TWISTED PAIR CONNECTION
The Model 1018RC operates over two twisted pair. In all
applications, the twisted pair wire must be 26 AWG or thicker,
unconditioned, dry, metallic wire. Both shielded and unshielded wire
yield favorable results. Note: The Model 1018RC can only
communicate in a closed data circuit, and is compatible with the
following Patton short hauls: Model 1018RC, Model 1018, Model
1080A, Model 1080ARC. Dial-up analog circuits, such as those used
with a standard Hayes-type modem, are not acceptable
. For further
information about acceptable wire grades, please refer to the diagrams
in Appendix B.
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Notice! Any modular twisted pair cable connected to the
Model 1018RC must be shielded cable, and the outer shield must
be properly terminated to a shielded modular plug on both ends
of the cable.
Notice! Any terminal cable connected to the Patton Model
1018RC must be shielded cable, and the outer shield must be
360 degree bonded–at both ends–to a metal or metalized
backshell.