Specifications

3 - 2
3.2 Devices Required for Network Configuration
This section explains the devices that are required to configure a network.
Network installation work needs sufficient safety measures; please ask a qualified
network installer.
REMARK
This section is described for use of QJ71E71-100.
For the other modules (QJ71E71, QJ71E71-B2), refer to Q corresponding Ethernet
Interface Module User's Manual (Basic).
(1) When configuring an Ethernet system using QJ71E71-100
When connecting the QJ71E71-100 to a network, either 10BASE-T or
100BASE-TX can be used.
The Ethernet module detects whether it is 10BASE-T or 100BASE-TX according
to the hub.
(a) Connection using 100BASE-TX
* Up to 2 stages are allowed
for cascade connection
Ethernet
module
External device
Twisted pair cable
Hub
Use the devices that satisfy the standards of IEEE802.3 ,100BASE-TX.
(About the devices shown under the hub)
• Shielded twisted pair cable (STP cable) (category 5)
* Straight cables can be used.
(Correct operation is not guaranteed if a crossed cable is connected to an
external device via 100BASE-TX of the Ethernet module.
However, use of crossed cables is allowed for data communication
between two Ethernet modules (i.e., two QJ71E71-100 modules) or for
connection to a GOT.)
• RJ45 jacks
• 100Mbps hub