auto maskin RIO 425, Руководство по установке

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Installation Manual - RIO 425
Page 3
Power Supply Fuse
The RIO 425 module shall be
protected with an external 2A fuse on
the supply line.
Wire Requirement
Supply wires shall have a minimum
area of 1mm
2
(~17 AWG).
Communication to the
DCU
The RIO 425 comes preconfigured to
communicate with the DCU
410(E)/408(E) or DCU 210(E)/208(E) in
the Auto-Maskin Marine Pro range.
It can be used together with other RIO
expansion modules on the same RIO
link.
Note! Only one RIO 425 can be used
on a RIO link.
Communication Wiring
Depending on the DCU model connect
the wires in the shielded
communication cable to the terminals
as shown in the table below:
RIO
425 DCU
410(E)/
408(E) DCU
210E/
208E DCU
210/
208
S
( )
57
( )
22
( )
B (L) 58 (L) C1-5 (L) 23 (L)
A (H) 59 (H) C1-6 (H) 24 (H)
Note! Do not connect the
cable shield ( ) at both ends.
To minimize the effect of external
noise it is recommended to use
twisted pair wires.
Communication bus
termination resistor
Note! Do not skip this section!
The 120 ohm (1/4 W) termination
resistor shall be connected at the last
RIO unit (furthest away from the DCU)
in the RIO link chain.
If the RIO 425 is the only unit on the
RIO link, then the termination resistor
shall be connected at the RIO 425.
Connect the resistor directly across
terminals A and B on the RIO 425.
If the RIO 425 is
not
the last RIO unit
on the link, then the termination
resistor shall not be connected to the
RIO 425, but at the last RIO unit on the
RIO link.
If there are
several units
attached to the
link add the 120
Ohm resistor
together with
the last unit on
the bus.
The DCU has an inbuilt termination
resistor at its end.
When the bus is properly connected,
the measured impedance between bus
terminals A and B shall be 60 ohm
(+/- 5 ohm).