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Hardware Installation Procedure
STEP 1:
After unpacking the MGate MB3280, connect the power
adapter. Make sure that the adapter is connected to an
earthed socket outlet.
STEP 2:
Use a standard straight-through Ethernet cable to connect the
MGate MB3280 to a network hub or switch. Use a cross-over
Ethernet cable if you are connecting the gateway directly to a
PC.
STEP 3:
Connect your device(s) to the MGate MB3280’s serial port.
STEP 4:
Place or mount the MGate MB3280. The unit may be placed
on a horizontal surface such as a desktop, mounted on a DIN-
rail, or mounted on the wall.
Wall or Cabinet Mounting
Mounting the MGate MB3280 onto a wall
requires two screws. The head of the screws
should be 5.0 to 7.0 mm in diameter, the
shaft should be 3.0 to 4.0 mm in diameter,
and the length of the screws should be at
least 10.5 mm.
DIN-rail Mounting
DIN rail attachments can be purchased separately to mount the MGate
MB3280 on a DIN rail.
Wall Mounting
DIN-rail Mounting
Termination Resistor and Adjustable Pull High/Low Resistors
For some RS-485 environments, you may need to add termination
resistors to prevent the reflection of serial signals. When using
termination resistors, it is important to set the pull high/low resistors
correctly so that the electrical signal is not corrupted. For each serial
port, DIP switches are used for termination resistor and pull high/low
resistor settings. To enable the 120
Ω
termination resistor, set switch 3
on the assigned DIP switch to ON; set it to OFF (the default setting) to
disable the termination resistor. To set the pull high/low resistors to
150 K
Ω
(the default setting), set switches 1 and 2 on the assigned DIP
switch to the OFF position; set them both to ON for 1 K
Ω
.
