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shading solutions by
VIMCO
TM
A
C
1 2 3 4
5 6 7 8
Cntrl 1
Cntrl 2
Ground
AC
AC
Drain
MUX
MUX
B
Do not connect if there is only one MDU in the system
. If
there are multiple MDU's in the system,the MDU's must be wired
together. Connect the MUX, Drain, and MUX terminals of each MDU
together in a daisy chain or homerun configuration.
To a
Sivoia
®
wall mounted keypad, or a
Sivoia
®
interface such
as the SV-CCI or the SV-GRXI. The CNTRL1 and CNTRL2 wires
are polarity sensitive.
WIRING MDU - SINGLE MOTOR
Connecting Wires to the MDU Terminal Block
The terminal block located at the bottom of the MDU is the wire
connection point for: power, communication, keypads, and interfaces.
A.
Remove terminal block cover (if not yet removed) by pressing in
on the cover and then pulling downward.
B.
Grasp terminal block and pull down to separate from connecting
block.
C.
Connect wires to the terminal block according to the diagram
below.
D.
Replace the terminal block and the terminal block cover.
Wire to a
Sivoia
®
plug-in transformer, junction box mount
transformer, or a
Sivoia
®
power panel. Each MDU must be EARTH
grounded. One
Sivoia
®
transformer can power
ONLY ONE MDU
regardless of shade size.
Wire Type
Control
Description
2 conductors / #22-24 AWG
3 conductors (2 shielded, 1 drain) / #24 AWG
Belden
®
wire model #1883A
3 conductors #22 AWG
Lutron
model # SV-IR-EXT-10
3 conductors:
2 / #18-22 AWG (24 VAC power supply)
1 / #18-22 AWG (earth ground)
6 conductors:
2 / #16 AWG (24 VAC power supply)
1 / #18 AWG (earth ground)
3 #22 AWG sh 1 #24 AWG drain (comm link)
(Lutron wire model no. SV-CBL-MDU-250)
Control to MDU: 250’ (76 m)
Max. Length
4000’. (1333 m) per system
1000’ (333 m) from MDU to MDU
50’. (15 m) per system - total of 5
SV-IR-EXT-10, 10’ (3 m) each
MDU to
Sivoia
®
power panel:
200’ (61 m)
Transformer to MDU:
#18 AWG - 150’ (46 m)
#20 AWG - 100’ (31 m)
#22 AWG - 60’ (18 m)
A
Comm Link
B
Comm & Power
( & combined)
D
Power Wires
C
SV-IR Extension
Cable
E
C
A
B
Control
Comm
Link
Power
Supply
B
5
