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Section 6: Appendix- Ethernet Cable Pinouts
A
crossover cable
has the RX and TX wire pairs switched around at one end. There are only two likely situations that would require a
crossover cable: to connect a single system controller computer directly to a single CM16a device; and to cascade hubs that don’t have uplink
ports.
ETHERNET CABLING
This diagram shows the pinout for
standard unshielded twisted-pair (UTP) network cable
. Both ends of the cable are wired
identically.
RJ-45 pinout for standard Ethernet
patch cable (both ends identical
)
RJ-45 pinout for an Ethernet
crossover cable
RS-232 Null Modem Cable Pinout
CM16a end of cable must be male pins;
computer end of cable is usually female.