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3.3 Connection
3.3.1 Ethernet
The standard 10/100BASE-T LAN uses an RJ-45 connector. It does not autosense polarity, which means it does not recognize
straight through cable or cross-over cable. To connect directly to the PC, you must use cross-over cable; to connect directly to
an toEthernet switch, use straight through cable. The length of the Ethernet cable that connects touch panel to the network
must not exceed 328 feet (100 meters).
Power over Ethernet is fully compatible with:
• IEEE 802.3af (PoE) standard for 7" model
• IEEE 802.3at (PoE Plus) standard for 12" model
Power over Ethernet integrates data and power on the same wires. It keeps the structured cabling safe and does not interfere
with concurrent network operation.
Power over Ethernet needs compatible Ethernet switches or injectors. You can order these from Black Box or another
equipment manufacturer.
Ethernet without PoE Infrastructure
Figure 3-2. Installing the ControlBridge Touch Panel in an environment without PoE infrastructure.
Ethernet with PoE Infrastructure
Figure 3-3. Installing the ControlBridge Touch Panel in an environment with PoE infrastructure.
PoE Adapter
OUT
IN
Ethernet cable
Ethernet cable
877-877-2269 | blackbox.com
Chapter 3: Installation
Power supply
Ethernet
Ethernet cable
Ethernet
with PoE
Page 11
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