SI JANUS User manual

Janus
Installation Instructions
DOC.#400065

CONTENTS
Parts in the Box � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 4 - 5
Mounting
Common Mounting Options � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 6 - 11
Alternative Mounting Options � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 12 - 13
Connections
Connecting Power � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 14 - 15
Connecting Shades � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 16 - 17
Connecting Bus Devices � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �18
Connecting IP Control � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �19
RJ45 LED Operation � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 20 - 21
Top Window LED Operation � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 22 - 23
Thank you for purchasing an SI product� If you have any questions or need any assistance with your Janus, we
would love to help you�
Technical Support: 512�832�6939
Hours of Support: 7:30am - 5pm CST
screeninnovations�com
support@screeninnovations�com

4 5
DIN Rail Screws (2)Universal DIN Rail Bracket (2)Universal DIN Rail
Rack Mount Screws (4)
PARTS IN THE BOX
Janus Universal Rack Ear (2)
Long Rack Ear
Rack Mount Fascia
Universal Mounting Screws (10) 1�5 mm Hex Tool
Terminal Block (8)

6 7
2a. Full Rack (Single Janus Unit)
A single Janus unit can be mounted in a
standard 19” rack using one Universal
Rack Ear and one Long Rack Ear�
1. Half Rack
Janus can be mounted in a standard half
rack using 2 Universal Rack Ears�
9.73” (247mm)
Note: Half Rack hole spacing must
be 9.73”(247mm)
COMMON MOUNTING OPTIONS

8 9
Rack Mount Fascia
DIN Rail Bracket
Rack Ear
DIN Rail
2b. Full Rack (2 Janus units)
Two Janus units can be coupled together and mounted in a standard 19” rack� Follow the steps below for
installation�
a� Using two (2) of the included DIN Rail
Screws, install the DIN Rail onto the
 rstJanusunit.
b� Using three (3) Rack Ear Screws each
(included), install the two DIN Rail Brackets
on the opposite side of the second Janus unit�
c� While holding both Janus units, slide the
DIN Rail through both DIN rail Brackets�
Then, tighten both set screws using the
provided 1�5mm hex tool�
d� Slide the Rack Mount Fascia over the
exposed DIN Rail bracket on the desired
front face of the combined unit� Fasten the
fascia down with two Rack Ear Screws (on
the top and bottom)�
e� Finally, fasten one Rack Ear to each Janus
unit using three (3) Rack Ear Screws each�

10 11
4. DIN Rail Mount
Using the Universal DIN Rail Brackets Janus can be mounted in a variety of orientations and locations� The
Universal DIN Rail Brackets are designed for TS-35 ‘Top Hat’ DIN Mounting Rail and can be mounted on the
bottom or either side of Janus�
TS-35 ‘Top Hat’ DIN Mounting Rail
(cross section)
35mm
7�5mm
3. Structured Wiring Box
Janus can be installed into nearly any structured wiring
enclosure using either the Universal Rack Ears or Universal
DIN Rail Brackets� Structured wiring enclosures are a
convenient and professional way to manage wiring and
mount supporting devices such as power supplies and SI�FI�
For a complete enclosure solution, visit our website to learn
about the Jopplin Structured Enclosure system for Janus
(www�screeninnovations�com/accessories/janus)�

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2. Using Universal DIN Rail Bracket
Similar to the Universal Rack Ear, the Janus Universal DIN Rail Bracket
features a symmetrical hole pattern which provides six total mounting
locations on Janus� Each Universal DIN Rail Bracket has multiple
threaded holes which accommodate
set screws to lock the Brackets in place
along the DIN Rail�
ALTERNATIVE MOUNTING OPTIONS
1. Using Universal Rack Ear
The symmetrical hole pattern of the Janus Universal Rack Ear allows these multi-functional Brackets to be
mounted on either side of Janus in any orientation� This makes it possible to mount Janus to virtually any
surface in multiple positions�

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If one of the power supplies fails, Janus will automatically switch over to the secondary
input� By default, Janus receives power from the Terminal Block Face�
CONNECTIONS
1. Connecting Power
Janus is designed to operate with a single power supply with the option to plug in a backup power supply for
redundancy�
Terminal Block FaceUTP Face

16 17
UTP Face
Pin#
1
2
3
4
5
6
7
8
Color
Orange White
Orange
Green White
Blue
Blue White
Green
Brown White
Brown
Function
SDN RS485 (+)
SDN RS485 (-)
Reserved
Power 24v DC
Power 24v DC
Reserved
SDN RS485 Ground
SDN RS485 Ground
Utilizing RJ-45 TIA-568B termination standard
Pin 1
Pin 8
The Janus shade dongle (sold
seperately) connects at the shade
location and allows for a properly
terminated UTP cable installation�
It also enables Janus to provide
more power for extended wire
lengths when connected to the
UTP Face� Contact SI for more
details at 512-832-6939�
Terminal Block Face V+
V-
Data +
Data -
Data Ground
2. Connecting Shades
Janusofferstheabilitytorunashadeusinganyindustrystandardfourconductor,veconductor,or
CAT5e/6 cable� Using either the UTP Face or the Terminal Block Face, each Janus device is capable
of supporting up to eight shades� Reference the Wire Topologies sheet (www�screeninnovations�com/
accessories/janus) on our website for supported wire and pinouts�

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UTP Face
Note: Only 1 Bus IN and 1 Bus OUT
port can be used at any given time.
4. Connecting IP Control
SI�FI is intended to be treated as any other bus device, and plugged in to a motor port, the BUS IN port, or a
Somfy Data Hub� Regardless of which of these ports you plug the SI�FI in, your entire system will be controllable
over IP�
**SI�FI requires a separate cable connecting it to the IP network of the site**
UTP Face
3. Connecting BUS Devices
All motor ports on the UTP Face of Janus accept device inputs and can be used if the port is not needed for
a shade� Janus supports the use of 8 shades and 8 devices simultaneously if all motors are plugged in to the
Terminal Block Face while all devices are connected to the UTP Face�

20 21
UTP Face
RJ45 LED OPERATION
LED information table for external face LEDs�
Port Left LED OFF Left LED ON Left LED blinking Right LED OFF Right LED ON
Bus In Bus Idle N/A Bus Data Activity* Bus Line Fault Bus Power No Fault*
Device Bus Out Bus Idle End of Bus Line** Bus Data Activity* Bus Line Fault Bus Power No Fault*
Shade I Bus Idle Shade Presence Bus Data Activity* Bus Line Fault Bus Power No Fault*
Shade II Bus Idle Shade Presence Bus Data Activity* Bus Line Fault Bus Power No Fault*
Shade III Bus Idle Shade Presence Bus Data Activity* Bus Line Fault Bus Power No Fault*
Shade IV Bus Idle Shade Presence Bus Data Activity* Bus Line Fault Bus Power No Fault*
Shade V Bus Idle Shade Presence Bus Data Activity* Bus Line Fault Bus Power No Fault*
Shade VI Bus Idle Shade Presence Bus Data Activity* Bus Line Fault Bus Power No Fault*
Shade VII Bus Idle Shade Presence Bus Data Activity* Bus Line Fault Bus Power No Fault*
Shade VIII Bus Idle Shade Presence Bus Data Activity* Bus Line Fault Bus Power No Fault*
* Green LED Light ON ** Yellow LED Light ON

22 23
21
30
29
28
27
26
25
24
23
22
31
40
39
38
37
36
35
34
33
32
Terminal Block Face UTP Face
TOP WINDOW LED OPERATION
LED information for PCB indicators visible through the enclosure window on the top surface�
Port/ Designator Left LED
OFF
Left LED ON Left LED
Blinking
Port/ Designator Right LED OFF Right LED ON Right LED
Blinking
Bus IN / 21 Bus Idle N/A Bus Data
Activity*
Bus IN / 31 Bus Line Fault Bus Power
No Fault*
N/A
Device Bus
OUT / 22
Bus Idle End of Bus
Line**
Bus Data
Activity**
Device Bus
OUT / 32
Bus Line Fault Bus Power
No Fault*
N/A
Shade I / 23 Bus Idle Shade
Presence
Bus Data
Activity*
Shade I / 33 Bus Line Fault Bus Power
No Fault*
N/A
Shade II / 24 Bus Idle Shade
Presence
Bus Data
Activity*
Shade II / 34 Bus Line Fault Bus Power
No Fault*
N/A
Shade III / 25 Bus Idle Shade
Presence
Bus Data
Activity*
Shade III / 35 Bus Line Fault Bus Power
No Fault*
N/A
Shade IV / 26 Bus Idle Shade
Presence
Bus Data
Activity*
Shade IV / 36 Bus Line Fault Bus Power
No Fault*
N/A
Shade V / 27 Bus Idle Shade
Presence
Bus Data
Activity*
Shade V / 37 Bus Line Fault Bus Power
No Fault*
N/A
Shade VI / 28 Bus Idle Shade
Presence
Bus Data
Activity*
Shade VI / 38 Bus Line Fault Bus Power
No Fault*
N/A
Shade VII / 29 Bus Idle Shade
Presence
Bus Data
Activity*
Shade VII / 39 Bus Line Fault Bus Power
No Fault*
N/A
Shade VIII / 30 Bus Idle Shade
Presence
Bus Data
Activity*
Shade VIII / 40 Bus Line Fault Bus Power
No Fault*
N/A
* Green LED Light ON ** Yellow LED Light ON

Screen Innovations
9715-B Burnet Rd, Suite 400 Austin, TX 78758
512�832�6939
www�screeninnovations�com
DOC�#400065 Rev A July 2019