Technical Glossary
Category 5e (CAT5E) Network Cabling
Category 5 cable is commonly also referred to as CAT5. This cabling is available in either solid or stranded
twisted pair copper wire variants and as UTP (Unshielded Twisted Pair) or STP (Shielded Twisted Pair).
UTP cables are not surrounded by any shielding making them more susceptible to electromagnetic
interference (EMI). STP cables include shielding over each individual pair of copper wires and provides better
protection against EMI. Category 5 has been succeeded by Category 5e cabling which includes better
support for high speed communications and reliability.
USB Cables
USB cables have two distinct connectors. The Type A connector (male) is used to connect the cable from a
USB device to the Type A port (female) on a computer or hub. The Type B connector (male) is used to attach
the USB cable to a USB device.
RJ45
The Registered Jack (RJ) physical interface is what connects the network cabling (CAT5E) to the LEX unit and
REX unit. You may use either the T568A scheme (Table 1) or the T568B scheme (Table 2) for cable termination
as the Ranger uses all four pairs of the UTP cable. RJ45 connectors are also referred to as 8P8C connectors.
RJ45 Pin Positioning
Table 1 - T568A Wiring
Table 2 - T568B Wiring
PIN
PAIR WIRE CABLE COLOR
PIN
PAIR WIRE CABLE COLOR
1
3
1
WHITE/GREEN
1
2
1
WHITE/ORANGE
2
3
2
GREEN
2
2
2
ORANGE
3
2
1
WHITE/ORANGE
3
3
1
WHITE/GREEN
4
1
2
BLUE
4
1
2
BLUE
5
1
1
WHITE/BLUE
5
1
1
WHITE/BLUE
6
2
2
ORANGE
6
3
2
GREEN
7
4
1
WHITE/BROWN
7
4
1
WHITE/BROWN
8
4
2
BROWN
8
4
2
BROWN
Pair 2
Pair 3
Pair 1
Pair 4
1 2
3
4 5
6
7 8
W-G G W-O BL W-BL O W-BR BR
Pair 2
Pair 3
Pair 1
Pair 4
1 2
3
4 5
6
7 8
W-O
O W-G
B W-BL
G W-BR
BR
15
USB Type A
port
USB Type A
connector
USB Type B
port
USB Type B
connector
