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C
OMMUNICATION
C
ONNECTIONS
W
IRING AND
I
NSTALLATION
2-6
MATRIX BACnet Router User Manual (6/6/2007)
2.3 C
OMMUNICATION
C
ONNECTIONS
Communication connections made to MATRIX BACnet Router should be made with care. To avoid any
possible conflict with existing network communications, it is recommended that firmware/software
configuration of MATRIX BACnet Router be performed before connecting the product to a BACnet
network. Refer to Section 3 for information on software setup and configuration of the product.
2.3.1 E
THERNET
N
ETWORK
Ethernet is a high-speed LAN widely used in commercial buildings. MATRIX BACnet Router includes an
on-board Ethernet adapter, used to communicate with the device for setup configuration, as well as for
BACnet/IP and BACnet/Ethernet communications.
The on-board Ethernet network interface supports 10Base-T (10Mbps) and 100Base-T (100MBps)
Ethernet connections to an Ethernet network. The MATRIX BACnet Router will automatically switch to
100Base-T operations if other devices and cabling connected to the same subnetwork support this. The
Ethernet network interface is located on the single board computer card of MATRIX BACnet Router, next
to the dual USB ports.
2.3.1.1 C
ABLE
T
YPE AND
L
ENGTH
Use an approved Category 5 (CAT5) Ethernet patch cable with RJ-45 plugs to connect MATRIX BACnet
Router to an Ethernet switch or hub. Use professionally manufactured cables to assure transmission rates
and reliability between devices. Distance of length for Category 5 is typically limited to about 300 feet (100
meters).
Figure 2-5 Standard Ethernet Connection Pinout of MATRIX BACnet Router
CAUTION
It is recommended that all software configuration
be performed prior to physically connecting the
MATRIX Router to any associated communication
networks.
Pin 7
Reserved
Pin 8
Reserved
Pin 6
Receive -
Pin 5
Reserved
Pin 1
Tr
Pin 2
Transmit -
Pin 3
R
Pin 4
Reserved