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1
Network Interface Units
A VersaMax I/O Station consists of a group of VersaMax modules with a
VersaMax Network Interface Unit (NIU) module and attached power supply in
the first position.
VersaMax NIU
power supply
The NIU provides I/O scanning and a communications interface, allowing a
group of VersaMax modules to function as an I/O station on a communications
bus. The power supply on the NIU provides power for the modules in the I/O
Station. Additional "booster" power supplies can be included in the system if
needed for modules with high current requirements.
A NIU module has connectors appropriate for its communications network type
and status LEDs. NIUs also have rotary dials that can be used to set
communications ID information and other parameters.
1-6
VersaMax Modules, Power Supplies and Carriers
VersaMax Modules
GBI001
PWR
OK
FAULT
I/O ENBL
FORCE
SBA ERR
IC200GBI001
BUS B
Genius
®
NIU
0
U
1
A
2
SBA
N
3
X10
0
9
1
2
8
SBA
3
7
X1
6
4
5
0
1
2
BAUD
N
3
RATE
SERIAL A1
SERIAL A2
SHIELD IN
SHIELD OUT
SERIAL B1
SERIAL B2
SHIELD IN
SHIELD OUT
Genius NIU
User Manual
GFK-1504N
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