14
Technical Glossary
Category 5e (Cat 5e) Network Cabling
Category 5e cable is commonly also referred to as Cat 5e. This cable 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 shielded conductors and provides better protection against electromagnetic
interference (EMI).
USB 2.0 Cables
USB 2.0 cables have two distinct full-sized connectors. The Type A connector is used to connect the cable
from a USB device to the Type A port on a computer or hub. The Type B connector is used to attach the USB
cable to a USB device.
RJ45
The Registered Jack (RJ) physical interface is what connects the network cable (Cat 5e) 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 USB 2.0 Ranger 2204 uses all four pairs of the cable. RJ45 connectors are sometimes also referred to as
8P8C connectors. Note that any given cable must be terminated using the same T568 scheme on both ends
to operate correctly.
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
USB Type A
port
USB Type A
connector
USB Type B
port
USB Type B
connector
