
MGP Pro Series • Installation
8
FIG_RS-232/422 pin asmts
RS-232 Function
Pin
Function
1
2
3
4
5
6
7
8
9
—
Tx
Rx
—
Gnd
—
—
—
—
Not used
Transmit data
Receive data
Not used
Signal ground
Not used
Not used
Not used
Not used
—
Tx–
Rx–
—
Gnd
—
Rx+
Tx+
—
Not used
Transmit data (–)
Receive data (–)
Not used
Signal ground
Not used
Receive data (+)
Transmit data (+)
Not used
RS-422
5
1
9
6
RS-232 / 422
REMO
TE
Figure 6.
RS-232/422 Connector Pin Configuration
NOTE:
The cables used to connect the RS-232/422 port to a computer or control
system may need to be modified by removing pins or cutting wires. If unneeded
pins are connected, the processor may cease functioning.
d
LAN connector
—
Plug an RJ-45 network cable into this
connector to connect the unit to a network (via a switch, hub, or
router) or to a single computer.
•
Activity LED
— This LED blinks to indicate network activity.
•
Link LED
— This LED lights to indicate a good network
connection.
Use a straight-through cable to connect to a network, or a
crossover cable to connect directly to a computer.
•
For 10BaseT (10 Mbps) networks, use a CAT 3 or better cable.
•
For 100BaseT (maximum 155 Mbps) networks, use a CAT 5 cable.
A cable that is wired as T568A at one end
and T568B at the other (Tx and Rx pairs
reversed) is a "crossover" cable.
A cable that is wired the same at both ends
is called a "straight-through" cable because
no pin or pair assignments are swapped.
Both ends of the cable can be T568B
(as shown) or T568A (not shown).
RJ-45
Connector
Insert Twisted
Pair Wires
1 2 3 4 5 6 7 8
Pins:
Crossover Cable
Straight-through Cable
Pin
1
2
3
4
5
6
7
8
Wire Color
White-green
Green
White-orange
Blue
White-blue
Orange
White-brown
Brown
Wire Color
T568A
T568B
End 1
End 2
End 1
End 2
White-orange
Orange
White-green
Blue
White-blue
Green
White-brown
Brown
Pin
1
2
3
4
5
6
7
8
Wire Color
Blue
White-blue
White-brown
Brown
Wire Color
T568B
T568B
White-orange
White-orange
Orange
Orange
White-green
White-green
Blue
White-blue
Green
Green
White-brown
Brown
Figure 7.
Wiring the LAN Connector
LAN
RJ-45
Port
Link
LED
Activity
LED