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-GRP or the SV-GRXI. The CNTRL1 and CNTRL2
wires are polarity sensitive.
MDU WIRING - 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.
A
B
Control
Comm
Link
Power
Supply
Comm & Power
( & combined)
Wire Type
Control
Description
2 conductors / #22-24 AWG
3 conductors (2 shielded, 1 common) / #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 shielded + 1 #24 AWG common (comm link)
(Lutron wire model no. SV-CBL-MDU-250)
Control to MDU: 250 ft. (76 m)
Max. Length
4000 ft. (1333 m) per system
1000 ft. (333 m) from MDU to MDU
50 ft. (15 m) per system - total of 5
SV-IR-EXT-10, 10 ft. (3 m) each
MDU to Sivoia®power panel:
200 ft. (61 m)
Transformer to MDU:
#18 AWG - 150 ft. (46 m)
#20 AWG - 100 ft. (31 m)
#22 AWG - 60 ft. (18 m)
A
Comm Link B
B
D
Power Wires C
C
SV-IR Extension
Cable E
5
