Lantronix
ION219-x Install Guide
33412 Rev. D
30
Appendix A Cable Specification and Connectors
RJ45 Cable
Wire:
Category 5
,
5e, 6
Gauge:
24 to 22 AWG
Attenuation:
22.0 dB/100m @ 100 MHz
Max. Cable Distance: 100 meters
•
Straight-through or crossover cable may be used.
•
Shielded twisted-pair (STP) or unshielded twisted-pair (UTP) may be used.
•
Pins 1&2 and 3&6 are the two active pairs in an Ethernet network (RJ-45 Pin-out: Pin 1 = TD+, Pin 2 = TD-,
Pin 3 = RD+, Pin 6 = RD-).
•
All pin pairs (1&2, 3&6, 4&5, 7&8) are active in a Gigabit Ethernet network. See Figure 27 below.
•
Use only dedicated wire pairs for the active pins: (e.g., blue/white & white/blue, orange/white &
white/orange, etc.)
•
Do not use flat or silver satin wire.
Table 1: RJ-45 Pinouts
Pin
Name
Description
1
TX_D+
Transmit data +
2
TX_D-
Transmit data -
3
RX_D2+
Receive data+
4
B1_D3+
Bi-directional data+
5
B1_D3-
Bi-directional data-
6
RX_D2-
Receive data-
7
B1_D4+
Bi-directional data+
8
B1_D4-
Bi-directional data-
Note
: CAT5 wire lengths should not exceed 100 meters.
Figure 12: RJ45 Pinouts
