Cable Specification; Network Connections - Festo CPX-FB39 Description

2 Installation
2.5.3

Cable specification

• Use sheathed Industrial Ethernet wiring of category Cat 5 or higher.
The bus node supports the "crossover detection" function (Auto-MDI/MDI-X).
To connect the bus node to the network or to a PC, this means you can choose between
patch cables or crossover cables.
The circuitry for network connections X1 and X2 is adapted automatically.
CPX-FB39
Cable type
Transmission class
Cable diameter
Wire cross section
Connection length
1) Required for maximum connection length between the network participants
2) corresponding to specification for Ethernet networks, based on ISO/IEC 11801, ANSI/TIA/EIA-568
Tab. 2.8
Please Note
When mounting the CPX terminal on a moving part of a machine.
• Use network wiring with tension relief.
• Note corresponding stipulations of IEC 60204.
2.5.4

Network connections

There are two 4-pin, D-coded M12 sockets on the bus node for the network connection. The sockets are
compatible with SPEEDCON plugs.
1)
Socket
M12, 4-pin Pin
1
2
3
4
1) Functional earth is accomplished via the housing.
Tab. 2.9
Functional earth
Please Note
The shielded connection for both network connections is linked by RC element to the
ground potential of the CPX terminal.
• Connect the ground connection of left-hand terminal plate in a low-current and
low-impedance manner to the ground potential (è CPX system description
P.BE-CPX-SYS-...).
20
Cable specification
Industrial Ethernet cable, screened
Category Cat 5
6 ... 8 mm
0.14 ... 0.75 mm², AWG 22
2)
Maximum 100 m
Connection [X1]
Signal Explanation
TX+ Transmitted data +
RX+ Received data +
TX– Transmitted data –
RX– Received data –
1)
Connection [X2]
Signal Explanation
RX+ Received data +
TX+ Transmitted data +
RX– Received data –
TX– Transmitted data –
Festo – P.BE-CPX-FB39-EN – 1504NH – English