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Cabling considerations
To ensure long-term reliability it is recommended that any cables used to connect
a system together be tested using a suitable Ethernet cable tester, this is of par-
ticular importance when cables are constructed on site.
Cable
To connect to the Bus, use a standard category 6 shielded Ethernet cable, accord-
ing to TIA/EIA-568A.
Cabling issues are the single biggest cause of network downtime. Ensure cabling
is correctly routed, wiring is correct, connectors are correctly installed and any
switches or routers used are rated for industrial use. Office grade Ethernet equip-
ment does not generally offer the same degree of noise immunity as equipment
intended for industrial use.
Maximum network length
The main restriction imposed on Ethernet cabling is the length of a single segment
of cable.
The ADV-GDNet module has one 100BASE-TX Ethernet port, which support seg-
ment lengths of up to 100m. This means that the maximum cable length which can
be used between one ADV-GDNet port and another 100BASE-TX port is 100m
however it is not recommended that the full 100m cable length is used.
The total network length is not restricted by the Ethernet standard but depends on
the number of devices on the network and the transmission media (copper, fiber
optic, etc.).
ADV-GDNet terminal descriptions
The ADV-GDNet module has an Ethernet RJ45 port for the EtherNet/IP network:
port "A" is used for the link, port "B" is not connected and must not be used.
Pin
A - IN (J1(
1
Transmit +
2
3
Receive +
4
5
6
7
8
GDNet terminal connections
Transmit -
Not used
Not used
Receive -
Not used
Not used
Pin
B - OUT (J2)
1
Not used
2
Not used
3
Not used
4
Not used
5
Not used
6
Not used
7
Not used
8
Not used
EN- 3
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