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Job Name:
Job Number:
Model Numbers:
Page
SPECIFICATION SUBMITTAL
369379 Rev. A 1 12.10.10
Wireless Control Interfaces
SZ-IO
Stanza®
SZ-IO Contact Closure Interface
Description
The Stanza system is an easy-to-install and easy-to-use
lighting control system designed especially for hotel guest
rooms and similar applications. The system consists of
wallbox dimmers, wallbox switches, line-voltage wallbox
keypads, low-voltage interfaces, and lamp socket
dimmer/switches. All of these devices communicate via
radio frequency (RF) within each individual guest room.
The Stanza contact closure interface allows Stanza
systems to connect with equipment that has contact-
closure inputs and outputs, including:
– Occupancy and vacancy sensors.
– Motorized window treatments.
– AV equipment.
– Thermostats.
– Card switches.
– Alarm systems.
The functionality of the Stanza contact closure interface
is determined by programming from the Stanza design
graphical user interface (GUI) PC software.
Features
•Providesfiveinputsandfivedrycontactclosureoutputs.
•Providesbothnormallyopen(NO)andnormallyclosed
(NC) momentary or maintained contacts.
•Usingtheinputs,contactclosuresinother
equipment can interface with the Stanza system to:
– Select scenes.
– Turn lights on or off based on room occupancy.
– Generate contact closure outputs.
•Usingtheoutputs,contactclosureinputsorbutton
presses on keypads can:
– Trigger outputs to control other equipment.
– Provide status feedback to other equipment.
•Provides15-24V , 100 mA maximum output for
powering external devices, such as card switches and
occupant sensors.
•Upto3contactclosureinterfacesmaybeusedinabasic
Stanza system (limit can be increased with SZ-CI-PRG
present).
1
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Job Name:
Job Number:
Model Numbers:
Page
SPECIFICATION SUBMITTAL
369379 Rev. A 2 12.10.10
Wireless Control Interfaces
SZ-IO
Stanza®
Specifications
Standards:
•FCCapproved.ComplieswiththelimitsforaClassB
digitaldevice,pursuanttoPart15oftheFCCrules
Input Power:
•Low-voltagePELV(Class2:USA).
Operatingvoltage:15-24V , 200 mA.
•ACadapterincluded(requires120V outlet;
provides15V output).
Output Power:
•TheSZ-IOcansupportanexternaldevicedrawing
up to 100 mA. Note that the power is supplied
directly from the external low-voltage PELV
(Class 2: USA).
Five Input Terminals:
•Acceptmaintainedinputsandmomentaryinputs
with40msecminimumpulsetimes.
•Off-stateleakagecurrentmustbelessthan100µA.
•Opencircuitvoltage:24V maximum.
•Inputsmustbedrycontactclosure,solidstate,
open collector, or active-low (NPN)/active high
(PNP) output.
- Open collector NPN or active-low on-state
voltage must be less than 2 V and sink
3.0 mA.
- Open collector PNP or active-high on-state
voltage must be greater than 12 V and
source 3.0 mA.
•250ft(76m)maximumfromexternaldeviceto
interface
Five Output Terminals:
•Providemaintainedormomentary(programmable
0.25-to20-second)outputs.
•TheSZ-IOisnotratedtocontrolunclamped,
inductive loads. Inductive loads include, but are not
limited to, relays, solenoids, and motors. To control
these types of equipment, a flyback diode must be
used (DC voltages only). See diagram below.
•Relaysarenon-latchingandde-energizeifpoweris
lost.
•250ft(76m)maximumfrominterfacetoexternal
device.
•Outputcurrentisratedasfollows:
+
-
DC
Inductive
Load
Flyback
Diode
SZ-IO Output
Supply
Voltage
0-24V
0-24V
Resistive
Load
1.0 A
0.5A
R
NC
NO
2
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Job Name:
Job Number:
Model Numbers:
Page
SPECIFICATION SUBMITTAL
369379 Rev. A 3 12.10.10
Wireless Control Interfaces
SZ-IO
Stanza®
Specifications
Key Design Features:
•FiveStatusLEDscanbesettolightwhen
associated output or input is active (on) or closed.
Additional status LEDs show proper device and
system operation.
•Powerfailurememory:ifpowerisinterrupted,when
the power is restored, device will retain all settings
that were in place prior to the interruption.
•Diagnosticmodeallowstheoutputstobe
overridden temporarily.
System Communications and Capacity:
•Contactclosureinterfacecommunicateswith
other Stanza system components through radio
frequency(RF)at434MHz.
•MultipleRFchannelsandthousandsofsystem
addresses prevent interference between systems.
•Eachcontactclosureinterfacecountsas
1 device toward the basic system maximum of
31 RF devices (maximum devices can be increased to
100 if an SZ-CI-PRG is present in the system).
•AmaximumofthreeStanza contact closures may
be used per system (limit increases with SZ-CI-PRG
present).
Environment:
•32-104°F(0-40°C).
•Relativehumiditylessthan90%non-condensing.
•Indooruseonly.
•Cannotbemountedinametalenclosure(interferes
with RF reception).
Warranty:
•1-yearlimitedwarranty
•2-yearfullpartsandlaborwarranty,with8-year
pro-rated parts replacement on commissioned
systems
For complete warranty details, see
www.lutron.com/TechnicalDocumentLibrary/
Warranty_CommercialSystems.pdf
Color/Finish:
•Blackonly
3
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Job Name:
Job Number:
Model Numbers:
Page
SPECIFICATION SUBMITTAL
369379Rev.A412.10.10
Wireless Control Interfaces
SZ-IO
Stanza®
Mounting
1.Mount the control interface directly on a wall, as shown in
the Mounting Diagram, using screws (not included).
2.When mounting, provide sufficient space for the antenna
and connecting cables.
3.Mount in an accessible location for convenient access
to addressing button, LEDs, terminal blocks, and DIP
switches.
4.Theunitcannotbemountedinafullmetalenclosure.If
mounting in a metal enclosure is necessary, antenna must
fully protrude out of a knockout or other hole. The antenna
is not removable or remotely mountable.
5.ConnectwiringasshownintheWiringDiagram.Usewire
sizes as specified in the Wiring Diagram.
6.The SZ-IO should be mounted no less than 3 ft (1 m) from
motorized window treatments for proper RF performance.
7.The SZ-IO must remain accessible after commissioning.
8.TheSZ-IOmustbeconnectedtoEarth/GroundorChassis
Ground for ESD protection (see Wiring Diagram).
Wire Strip Length
3/8in
(10 mm)
5.26
4.263.75
2.50
1.06
Control Interface
Wall
Mounting Diagram
0.25
(6.4)
0.34(8.6)
dia.
0.18(4.6)
dia.
0.18(4.6)
dia.
#6or#8(M3orM4)
screw recommended
(not included)
Dimensions
Dimensions are in inches (mm).
2.47
(62.7)
3.75
(95.3)
4.26
(108.2)
6.0
(152.4)
5.26
(133.6)
Mounting
holes
1.06
(26.9)
Terminal
blocks
on this side
LEDs
and DIP
switches on
this side
1.0(25.4)
4
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Job Name:
Job Number:
Model Numbers:
Page
SPECIFICATION SUBMITTAL
369379Rev.A512.10.10
Wireless Control Interfaces
SZ-IO
Stanza®
System Overview System Communication Notes
•Stanza RF devices must be located within 30 ft
(9 m) of a Stanza RF device configured as a repeater.
Multiple devices configured as repeaters may be
necessary to provide adequate coverage.
•AnyStanza RF device can be configured as a
repeater.
•Atotalof5devicesmaximumcanbeconfiguredas
repeaters.
•Devicesconfiguredasrepeatersmustbewithin30ft
(9 m) of another device configured as a repeater.
•Stanza lighting controls cannot be controlled
wirelessly, and Stanza keypads and contact closure
interfaces will not function, until they are addressed
and programmed.
30 ft (9 m)
max.
Keypad Dimmer
30 ft (9 m) max.
from repeater
device
30 ft (9 m) max.
from repeater
device
Feature Basic System
(no SZ-CI-PRG present)
Advanced System
(with SZ-CI-PRG present)
Maximum devices 31 100
RS232 and/or Ethernet
Interface Capability
No Yes
PC Required for Device
Replacement
No Yes
1 2 3 4 5 6 7
SZ-IO
LED 1: CCI/O 1 status
LED 2: CCI/O 2 status
LED 3: CCI/O 3 status
LED4:CCI/O4status
LED5:CCI/O5status
LED 6: Addressing mode
LED 7: RF link activity
Interface Overview
PELV
(Class 2: USA) Power In
15-24V 200 mA
Addressing button
DIP Switches
Antenna
Note: Device should be powered using the supplied
transformer or shade power supply (Lutron® part number
SZ-PS-P1-1-50).SeeWiringDiagram.ContactLutron
Technical Support prior to powering device using any other
transformer or power supply.
5
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Job Name:
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Page
SPECIFICATION SUBMITTAL
369379 Rev. A 6 12.10.10
Wireless Control Interfaces
SZ-IO
Stanza®
CCI and CCO terminals each hold one
28-16AWG(0.08-1.5mm
2
) wire
15-24V 200 mA
Power terminals each hold
two18AWG(1.0mm
2
)
wires
CCO 1 NC
CCO 1 NO
1-2 COM
CCO 2 NC
CCO 2 NO
CCO 3 NC
CCO 3 NO
3-4COM
CCO4NC
CCO4NO
CCO5NC
CCO5NO
5COM
CCI 1
CCI 2
CCI 3
CCI4
CCI5
COM
+PWR OUT
COM
Wiring Diagram
Contact Closure Outputs
Contact Closure Inputs
GND
N/C
Operation
The SZ-IO receives its operating settings during
system startup. A device database containing
settings is transferred to the SZ-IO after it has been
addressed. This database includes settings for:
• CCObehavior(maintainedvs.momentary)
• Momentarypulsetime
• CCIprogrammingaction
• Systempresets
LED Feedback
The SZ-IO provides 7 LEDs for user feedback:
Status LEDs
LEDs1through5providefeedbackfortheCCOs
and CCIs. The display mode (CCO vs. CCI status)
depends on the position of DIP switch 7: The LED
lights when the CCO is active or when the CCI is
closed.
Switch up (on): CCI status displayed
Switch down (off): CCO status displayed
Addressing Mode LED
LED 6 will blink during addressing. A slow blink
(onfor3secondsevery4seconds)indicatesan
unaddressed device. A fast blink (once per second)
indicates an addressed device. When not in
addressing mode, this LED is off.
RF Link Activity LED
LED 7 will blink when the SZ-IO receives or
transmits an RF packet.
Diagnostic Mode and DIP Switch Settings
Diagnostic mode allows the user to override the contact
closure outputs (CCOs) of the device.
Diagnostic Mode Operation
1. Enter diagnostic mode. Move DIP switch 6 to the on (up)
position. LEDs 6 and 7 will flash together (once per second)
while the unit is in diagnostic mode.
2. Select CCOs to override.UseDIPswitches1through5to
select which CCOs to close when the addressing (ADDR)
button is pressed. (The DIP switch number corresponds to
the CCO it controls.)
3. Activate the CCOs. Press the addressing button to activate
the CCOs you set using the DIP switches in the previous step.
The CCOs will remain active as long as the button is pressed.
4.Exit diagnostic mode. Move DIP switch 6 to the off (down)
position. LEDs 6 and 7 will stop flashing together.
DIP Switch Settings
Switch # LED Display
6 7 Mode Shows
Normal Outputs
Normal Inputs
Diagnostic Outputs
Switch up (On) Switch down (Off)
Note:Indiagnosticmode,DIPs1-5settheoverridestateoftheoutputs.
Note: For ESD protection, the included ground
wire should be connected to Earth/Ground before
device is powered.
6
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Job Name:
Job Number:
Model Numbers:
Page
SPECIFICATION SUBMITTAL
369379 Rev. A 7 12.10.10
Wireless Control Interfaces
SZ-IO
Stanza®
Wiring Examples
Wiring to Stanza® Card Switch
+PWR
COM
Stanza card switch
(rear view)
}
Common
Available CCIs
(any available CCI can be used)
SZ-IO
Rear View
Wiring to Stanza® Contact Closure Shade
SZ-IO
Rear View
COM
24V
Close
Open
Terminal block
of shade or
drape EDU
Lutron contact
closure drapery
track system
electronic drive
unit (EDU)
N/C
24V
COM
+PWR
COM
}
Common
Available CCIs
SZ-IO Rear View
}
Available CCOs
From CCO equipment
by others
For powering equipment
by others
15-24V 100 mA
max available from plug-
in supply on front panel.
}
Available CCOs
(any available CCO
can be used)
Note: When wiring to Lutron contact closure shade as
shown, power is provided to the SZ-IO by the window
treatment power supply. In this case, a separate plug-in
wall transformer should not be used for the SZ-IO.
To CCI equipment
by others
Note: Power supplied to SZ-IO
by plug-in wall transformer on
the other side of the unit.
+PWR
COM
Note: The SZ-IO should be mounted no
less than 3 ft (1 m) from motorized window
treatments for proper RF performance.
Note: Power supplied to SZ-IO
by plug-in wall transformer on
the other side of the unit (not
shown).
GND
N/C
Lutron® motorized window
treatment power supply
GND
N/C
Wiring to/from Equipment by Others
GND
N/C
1: Common 2: Power
15–24V
4:CCICommon
3: CCI
To second
EDU
(if present)
7
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Completed 18 July 2020

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