Intesis
TM
Modbus Server - KNX
User Manual r1.2 eng
© HMS Industrial Networks S.L.U - All rights reserved
This information is subject to change without notice
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4
Connections
Find below information regarding the Intesis connections available.
Power Supply
Must use NEC Class 2 or Limited Power Source (LPS) and
SELV
rated power supply.
If using DC power supply:
Respect polarity applied of terminals (+) and (-). Be sure
the voltage applied is within the range admitted (check
table below). The power supply can be connected to earth
but only through the negative terminal, never through the
positive terminal.
If using AC power supply:
Make sure the voltage applied is of the value admitted (24
Vac). Do not connect any of the terminals of the AC power
supply to earth, and make sure the same power supply is
not supplying any other device.
Ethernet / Modbus TCP
Connect the cable coming from the IP network to the connector
ETH of the gateway. Use an Ethernet CAT5 cable. If
communicating through the LAN of the building, contact the
network administrator and make sure traffic on the port used is
allowed through all the LAN path. DHCP is enabled by default.
When disabled, default IP is 192.168.100.246.
PortA / KNX
Connect the KNX TP1 bus to connectors A3 (+) and A4 (-
) of gateway’s PortA. Respect the polarity
PortB / Modbus RTU
Connect the EIA485 bus to connectors B1 (B+), B2 (A-) and B3 (GND)
of gateway’s PortB. Respect the polarity.
Remember the characteristics of the standard EIA485 bus: maximum distance of 1200 meters, maximum 32 devices
connected to the bus, and in each end of the bus it must be a termination resistor of 120 Ω. The gateway has an
internal bus biasing circuit that incorporates the termination resistor. If you install the gateway in one of the ends of
the bus, then do not install an additional termination resistor in that end.
Connect the serial cable EIA232 coming fr
om the external serial device to the EIA232 connector of gateway’s PortB.
This is a DB9 male (DTE) connector in which only the lines TX, RX and GND are used. Details of the pinout can be
seen in the user's manual. Respect the maximum distance of 15 meters.
Console Port
Connect a mini-type B USB cable from your computer to the gateway to allow communication between the
Configuration Software and the gateway. Remember that Ethernet connection is also allowed. Check the user manual
for more information.
USB
Connect a USB storage device (not a HDD) if required. Check the user manual for more information.
Ensure proper space for all connectors when mounted (see section 7).