Twisted-Pair Ethernet (For 526-3001 Only) - GE D20MX Instruction Manual

CHAPTER 3: CONNECTING TO DEVICES AND NETWORKS

Twisted-pair Ethernet (for 526-3001 only)

To connect the D20MX
to network devices
D20MX INSTRUCTION MANUAL
The10/100/1000BASE-T variant of the D20MX can connect to one or two networks through
two twisted-pair Ethernet connections. In redundant LAN mode this causes the two
Ethernet connections to use the same MAC address. Port 1 is the primary port and Port 2 is
the secondary port. When the system detects a signal on Port 1, Ethernet traffic takes
place on Port 1. When the system detects loss of signal on Port 1, Ethernet traffic takes
place on port 2.
All RJ-45 connectors have the same signal definition. However, the twisted-pair Ethernet
ports are auto MDI/MDIX and can support a straight-through or crossover cable.
The D20MX does not require Ethernet switches to use Spanning Tree Protocol (STP), but for
switches configured to use STP, you must configure the switch ports that are connected to
the D20MX as edge ports.
Plug network cables into the D20MX twisted-pair Ethernet ports.
If the D20MX is deployed in the presence of strong RF energy in the 110 MHz - 125 MHz
band, such as airport ILS localizers or aviation radio transmitters, it is recommended that
shielded twisted-pair Ethernet cables be used.
Table 14: Ethernet RJ-45 connector signal definitions
Position Function
1 RX+
2 RX-
3 TX+
4 P1+
5 P1-
6 TX-
7 P2+
8 P2-
Shield
Table 15: Ethernet crossover cable (RJ-45) pin out
D20MX
Name Pin
TX_D1+ 1
TX_D1- 2
RX_D2+ 3
RX_D2- 4
BI_D3+ 5
BI_D3- 6
BI_D4+ 7
BI_D4- 8
Signal Flow
IN
IN
OUT
-
-
OUT
-
-
-
Switch/Hub
Pin
3
6
1
2
7
8
4
5
GE INFORMATION
Color
White w/ Orange
Orange
White w/ Green
Blue
White w/ Blue
Green
White w/ Brown
Brown
-
Name
RX_D2+
RX_D2-
TX_D1+
TX_D1-
BI_D4+
BI_D4-
BI_D3+
BI_D3-
45