There are two Crestron® Input/Output Module configurations available: ST-IO and
STI-IO. Configuration differences depend on which power pack is used. The ST-IO
is supplied with a power pack for a 120V AC supply and the STI-IO is supplied with
a power pack for 220VAC. For purposes of this Operations Guide, the term ST-IO is
used for either configuration.
The ST-IO device has eight relays and four digital voltage/closure inputs. As part of
the Cresnet system, use of an external power pack is optional. This unit can operate
using the Cresnet
NOTE: When connected to both the Cresnet power and the external power supply,
the Cresnet power is disconnected.
The ST-IO module incorporates eight relays that can be connected to controllable
devices. The eight normally open relays are isolated from one another.
The ST-IO also incorporates four digital inputs that can operate in one of two
modes: closure and voltage. The input mode is configured using internal jumpers.
The ST-IO is set to closure mode when shipped.
• In closure mode, the ST-IO detects switch/relay closures to ground (closed
= logic 1 and open = logic 0). The inputs are connected to 5 VDC via a
1.0K ohm “pull-up” resistor and protection diode.
• In voltage mode, the ST-IO detects active voltages (voltages > 2.5V = logic
1 and voltages < 1.5V = logic 0). The mode for these inputs is selectable via
internal jumpers.
®
voltage or an external power supply.
Refer to “Digital Input Modes” on page 7 for a description to change digital input
mode.
Functional Summary
• Eight isolated normally open relays
• Four digital inputs operating in closure mode or voltage mode
• Two network connectors for daisy-chaining units
• Rack mountable with optional ST-RMK (1 space height)
The following three tables provide a summary of specifications for the ST-IO
module, digital inputs, and relay outputs.
ST-IO Specifications
SPECIFICATION DETAILS
Power Requirements 6 Watts (.25A @ 24VDC) - Cresnet
or 0.5A @ 12VDC external power supply
(supplied)
Default Net ID 14
Control System Update Files
2-Series Control System Version C2-2.000.CUZ or later
CEN/CN-TVAV
CNMSX-AV/Pro
CNRACKX/-DP Version 5.01.35W.UPZ or later
ST-CP Version 4.02.04S.UPZ or later
Ports/Connectors
NET
DIGITAL IN
RELAY OUTPUT
12 VDC, 0.5A
Rack Space 1 unit high, ½ unit wide
Environmental Temperature 41° to 113°F (5° to 45°C)
Environmental Humidity 10% to 90% RH (non-condensing)
Dimensions & Weight Height:
1, 2, 3
Version 5.10.13V.UPZ or later
Version 5.01.35X.UPZ or later
Two 6-pin, RJ type connectors
One 5-pin connector
One 16-pin connector
One – Male receptacle for external power pack
1.70 in (4.318 cm)
Width:
Depth:
Weight:
7.07 in (17.95 cm)
6.32 in (16.06 cm)
1.96 lb (0.89 kg)
1. The latest software versions can be obtained from the Downloads | Software Updates section of the
Crestron website (www.crestron.com
2. Crestron 2-Series control systems include the AV2, CP2/CP2E, MP2/MP2E, PAC2, PRO2 and
RACK2.
3. Filenames for CNX and ST-CP update files have a UPZ extension. Files on the website may be .zip
or self-extracting .exe files containing the .cuz or .upz file. To avoid program problems, make sure
you are using the update file with the correct suffix letter (e.g., S, V, W, X).
). Refer to the note below.
NOTE: Crestron software and any files on the website are for Authorized Crestron
dealers and Crestron Authorized Independent Programmers (CAIP) only. New users
may be required to register to obtain access to certain areas of the site (including the
FTP site).
Maximum Rating per Relay 1A, 30 Volts (AC or DC) Maximum
100 µA, 100 mV Minimum
Physical Description
The ST-IO, shown in the following illustrations, is housed in a black enclosure with
labels on the front and rear panels. The 14 LEDs on the front panel indicate the
current status. All connections are made on the rear of the unit. Four rubber feet are
supplied on the base of the unit for stability and to prevent slippage.
These two 6-pin, RJ-12 modular jacks are used to connect the ST-IO module to a
Cresnet control system. When the module is part of the Cresnet system, power may
be supplied via NET if within system power and cable length limits; the supplied
power pack is optional and need not be attached. Two NET ports are available so
that network units can be daisy-chained together. Review the latest revision of the
Network Modular Cable Requirements (Doc. 5682).
Net Connectors
PIN SIGNAL
1 2 3 4 5 6
1 2 3 4 5 6
1 +24
2 +24
3 Y
4 Z
5 GND
6 GND
NOTE: Most 4-conductor phone cables are wired in a crisscross fashion and are not
compatible with Crestron equipment.
If the power pack is attached when the module is part of a Cresnet system, power is
drawn from the power pack. The module does not draw from the network power, but
the network power remains chained.
DIGITAL IN (1, 2, 3, 4, & G)
This 5-pin connector (four inputs and one common) is used to detect digital input
levels in either closure or voltage mode.
This yellow LED illuminates when communication between Cresnet and the ST-IO
is established. Illumination indicates that the SIMPL Windows program currently
loaded has a network device defined with the same network ID as the ST-IO.
Input (1 through 4)
These red LEDs illuminate when the respective signal to the digital input is logic 1.
RELAY (1 through 8)
These red LEDs illuminate when the respective relay is closed.
Setup
Identity Code
Refer to the note on page 13 for a
definition of Viewport.
All equipment and user interfaces within the network require a unique identity code
(Net ID). These codes are two-digit hexadecimal numbers from 03 to FE. The Net
ID of each unit must match an ID code specified in the SIMPL Windows program.
Refer to “Setting the Net ID in Device Settings” on page 11 for details of the SIMPL
Windows procedure.
The Net ID of the ST-IO has been factory set to 14, The Net IDs of multiple ST-IOs
in the same system must be unique. Net IDs are changed from a personal computer
(PC) via the Crestron Viewport.
NOTE: For detailed information on establishing communication between the PC
and control system, refer to “Communication Settings” on page 13. If
communication cannot be established, refer to the “Troubleshooting
Communications” section in the respective Operations Guide for the control system.
Use the following instructions to set or change the Net ID.
1. Ensure that the device requiring a Net ID change is the only unit connected
to the control system.
2. Open the Crestron Viewport.
3. From the Viewport menu, select Functions | Set Network ID. The software
checks the baud rate and then opens the "Set Network ID" window.
4. In the "Set Network ID" window, select the device requiring a Net ID
change from the Current Network Devices text window.
5. Select the new Net ID for the device from the Choose the new network ID
for the selected device (Hex): text box.
6. Click Set ID to initiate the change. This will display the "ID command has
been sent" window.
7. In the "Command Complete" window, click OK.
8. In the Current Network Devices text window, verify the new Net ID code.
NOTE: The new Net ID code may also be verified by selecting Diagnostic | Report
Network Devices in the Viewport (alternately, select F4).
10. Repeat this procedure for each additional network device requiring a Net ID
change.
Digital Input Modes
All four digital inputs on the ST-IO are factory set in the closure mode. However,
any number of inputs can be changed to voltage mode by opening the unit and
moving a jumper over the proper pins. Verify the current setting of each digital input
using Viewport to poll the network devices. From the Viewport main menu, select
Diagnostics | Report Network Devices, or press F4. A detailed list of all devices
will be displayed. The data includes the Net ID, the name and type of device, as well
as its operating system or firmware version and configuration data, where applicable.
A factory supplied unit responds with the following configuration data.
INPUT MODE: IN1=C, IN2=C, IN3=C, IN4=C
Each input (IN1 through IN4) is in closure mode (C). Voltage mode is defined with
a “V”.
If the mode setting for any of the digital inputs must be changed, power down the
ST-IO and complete the following steps.
1. Turn the unit over and place it topside down on a soft, clean surface.
2. Loosen and remove four screws and washers that secure the top cover to the
ST-IO.
3. Lift, turn the unit over, and place the unit down on its four rubber feet.
4. Slide the top cover toward the back panel while holding the ST-IO in place
until the cover is free.
5. Locate the jumpers covering pins for the respective inputs (labeled 1, 2, 3,
and 4 from right to left). Refer to the following illustration.
NOTE: The jumpers must be installed in one of the two positions described in step
6. If the jumpers are completely removed, the ST-IO will not function properly.
6. Lift the jumpers from the pins and replace so that that the proper pins are
connected together. (Cover pins 1 and 2 for voltage mode. Cover pins 2 and
3 for closure mode.)
7. Replace the cover by sliding it over the unit and secure with four screws
and washers.
8. Apply power to the ST-IO and poll the network devices again to verify the
mode settings.
Hardware Hookup
Refer to the following hookup diagram. Other than making the power connection
last, complete the connections in any order.
CAUTION: Use only Crestron power supplies for Crestron equipment. Failure to do
so could cause equipment damage or void the Crestron warranty.
NOTE: When installing network wiring, refer to the latest revision of the wiring
diagram(s) appropriate for your specific system configuration, available from the
Downloads | Product Manuals | Wiring Diagrams section of the Crestron website
(www.crestron.com).
NOTE:
Use ST-CNB (Sold Separately) to
connect ST-IO to Cresnet System.
12VDC
.5A
CRESTRON ELECTRONICS INC. N.J. 07626
EXTERNAL
POWER PACK
(500 mA for ST-IO)
(1000 mA for STI-IO)
NET
Y
NET
From Device Outputs
G24 Z
DIGITAL IN
NET
2
1
DAISY CHAIN
TO EXPAND
- CONTACT CLOSURES
- SOLID STATE CLOSURES
- LIGHTING SYSTEMS
RELAY OUTPUT
CONTROLLABLE
DEVICES
TO
6
53 42G 143
7
8
Programming Software
Have a comment about
Crestron Software?
Direct software related suggestions
and/or complaints to Crestron via
e-mail (software@crestron.com
Do not forward any quiries to this
address. Instead refer to “Further
Inquiries” on page 17 for
assistance.
Earliest Version Software Requirements for the PC
NOTE: Crestron recommends that you use the latest software to take advantage of
).
the most recently released features. The latest software is available from the
Downloads | Software Updates section of the Crestron website (www.crestron.com
The following are the earliest useable software version requirements for the PC:
• SIMPL Windows, any version. Requires SIMPL+ Cross Compiler version
1.1.
• Crestron Database version 16.0 or later. Required by SIMPL Windows.
• Crestron Viewport version 3.35 or later.
Programming with SIMPL Windows
NOTE: The following assumes that the reader has knowledge of SIMPL Windows.
If not, refer to the extensive help information provided with the software.
NOTE: The following are file extensions for programs that include an ST-IO,
developed for specific control system types:
.smw source file
.spz compiled file for 2-Series
.bin compiled file for CNX generation
.csz compiled file for CNX generation with SIMPL+
.ush compiled file for CNX generation with SIMPL+ header file
.usp source code module for SIMPL+
.umc user macro for SIMPL
NOTE: In the following description, the PRO2 control system is used.
SIMPL Windows is Crestron’s software for programming Crestron control systems.
It provides a well-designed graphical environment with a number of workspaces
(i.e., windows) in which a programmer can select, configure, program, test, and
monitor a Crestron control system. SIMPL Windows offers drag and drop
functionality in a familiar Windows
This section describes a sample SIMPL Windows program that includes an ST-IO.
Configuration Manager is where programmers “build” a Crestron control system by
selecting hardware from the Device Library. In Configuration manager, drag the
PRO2 from the Control Systems folder of the Device Library and drop it in the upper
pane of the System Views. The PRO2 with its associated communication ports is
displayed in the System Views upper pane.
®
environment.
PRO2 System Views
The System Views lower pane displays the PRO2 system tree (refer to the following
graphic). This tree can be expanded to display and configure the communication
ports.
Expanded PRO2 System Tree
C2Net-Device Slot in Configuration Manager
To incorporate an ST-IO into the system, drag the ST-IO from the Cresnet Control
Modules | Cresnet I/O Control & Other Modules folder of the Device Library and
drop it in System Views. The PRO2 system tree displays the ST-IO in Slot 9, with a
default Net ID of 14 as shown in the following illustration.
NOTE: The first ST-IO in a system is preset with a Net ID of 14 when its symbol is
dragged into the upper pane of System Views. Additional ST-IO units are assigned
different Net ID numbers as they are added.
C2Net Device, Slot 9
Setting the Net ID in Device Settings
Double-click the ST-IO icon to open the “Device Settings” window. This window
displays the ST-IO device information. If necessary, select the Net ID tab to change
the Net ID as shown in the following figure.
ST-IO “Device Settings” Window
NOTE: SIMPL Windows automatically changes the Net ID values of a device
added to a program if a duplicate device or a device with the same default Net ID
already exists in the program. Always ensure that the hardware and software settings
of the Net ID match. For Net ID hardware setting details, refer to “Identity Code” on
page 6.
Programming Manager is where programmers “program” a Crestron control system
by assigning signals to symbols. The following graphic shows the ST-IO symbol in
the SIMPL Windows’ Programming Manager.
ST-IO SIMPL Windows Symbol
The ST-IO provides eight isolated relays for controlling low voltage contact closure
devices such as drapes, screens and lifts. It also provides four local digital outputs.
When a <relay> signal goes high, the corresponding relay closes for as long as the
signal remains high. When the signal goes low, the relay opens. If a signal is
undefined, the relay is open.
The four local <i> outputs can function in either closure or voltage mode. In closure
mode (the default setting), an <i> signal goes high whenever the ST-IO detects the
presence of a switch or relay closure to ground. In voltage mode, the <i> signal goes
high when it detects the presence of an active voltage (voltages > 2.5V = logic 1, and
voltages < 1.5V = logic low).
Device Extenders
To facilitate network functions and diagnostics, SIMPL Windows provides two
device extenders for the ST-IO.
The Poll Manager and The Poll Manager (2 Series Extended) symbols are device
extenders for plug-in control cards and for Cresnet devices and touchpanels. The
Poll Manager takes the device on and offline without need to physically disconnect it
from the network, and reports the current connection status of the device.
The device extenders are available with X-Series and 2-Series control systems; they
are not available with the ST-CP or CN-Series control systems.
To add a device extender, right-click the ST-IO in Program View, point to Insert
Device Extender and select the desired device extender. To program a device
extender, expand the ST-IO in Program View and drag the device extender to Detail View.
Uploading
Assuming a PC is properly connected to the entire system, Crestron programming
software allows the programmer to upload programs and projects after their
development to the system and network devices. However, there are times when the
files for the program and projects are compiled and not uploaded. Instead, compiled
files may be distributed from programmers to installers, from Crestron to dealers,
etc. In those instances, one has the option to upload via the programming software
or to upload via the Crestron Viewport.
NOTE: The Crestron Viewport is available as a pull-down command from SIMPL
Windows and VT Pro-e (Tools | Viewport) or as a standalone utility. The Viewport
utility performs multiple system tasks, primarily via an RS-232 or TCP/IP
connection between the control system and a PC. It is used to observe system
processes, upload new operating systems and firmware, change system and network
parameters, and communicate with network device consoles and touchpanels, among
many other tasks. Viewport can function as a terminal emulator for generic file
transfer. All of these functions are accessed through the commands and options
inViewport menus. Therefore, for its effectivness as a support and diagnostic tool,
the Crestron Viewport may be preferred over development tools when uploading
programs and projects.
NOTE: Firmware for the ST-IO is not upgradable in the field.
The following section defines how to upload a SIMPL Windows program. Before
attempting to upload, it is necessary to establish communications.
Communication Settings
NOTE: For laptops and other PCs without a built-in RS-232 port, Crestron
recommends the use of PCMCIA cards, rather than USB-to-serial adapters. If a
USB-to-serial adapter must be used, Crestron has tested the following devices with
good results:
Other models, even from the same manufacturer, may not yield the same results.
The procedure in this section provides details for RS-232 communication between
the PC and the control system. If TCP/IP communication is preferred, consult the
latest version of the Crestron e-Control Reference Guide (Doc. 6052) of the
respective Operations Guide for the control system. These documents are available
from the Downloads | Product Manuals section of the Crestron website
(www.crestron.com). Refer to the following figure for a typical connection diagram
when uploading files.
NOTE: Use a standard DB9 male to female “straight-through” cable.
Typical Connection Diagram when Uploading
Serial Port
PC
DB9 Cable
Computer Port
NET
G24 ZY
Control
Processor
ST-CNB Cable
ST-IO
NET
12VDC
.5A
CRESTRON ELECTRONICS INC. CRESSKILL, N.J. 07626
DIGITAL IN
NET
1
G432
RELAY OUTPUT
7653 421
1. Open the Crestron Viewport.
Either launch the standalone version of Viewport, or start SIMPL
Windows, and from the menu bar, select Tools | Viewport.
2. Refer to the following illustration. From the Viewport menu, select Setup | Communications settings (alternatively, press Alt+D) to open the “Port
Settings” window.
3. Select RS-232 as the connection type. Verify that an available COM port
(COM 1 is shown after this step) is selected, and that all communication
parameters and necessary options from the “Port Settings” window are
selected as shown after this step. Click the OK button to save the settings
and close the window.
“Port Settings” Window
A control system source file has
the extension .smw. A compiled
SIMPL Windows file has the
extension .spz for a 2-Series
control system, .bin for CNX
generation, and .csz for CNX
generation with SIMPL+.
NOTE: The parameters shown in the illustration above are the port settings for a 2Series control system. Consult the Operations Guide for the control system being
used for the exact parameter selection.
4. To verify communication, select Diagnostics | Establish Communications
(Find Rack). This should display a window that gives the COM port and
baud rate. If communications cannot be established, refer to the
“Troubleshooting Communications” section in the respective Operations
Guide for the control system.
Uploading a SIMPL Windows Program
The SIMPL Windows file can be uploaded to the control system using SIMPL
Windows or via the Crestron Viewport.
Upload via SIMPL Windows
1. Start SIMPL Windows.
2. Select File | Open to view the “Open” window, navigate to the SIMPL
1. Verify that the procedure for “Communication Settings” that begins on
page 13 has been performed.
2. As shown after this step, select File Transfer | Send Program
(Alternatively, press Alt+P) from the Viewport menu.
File transfer | Send Program Command
3. The “Send Program” window appears as shown after this step. Click
Browse, locate the completed file (.spz for PRO2) and click Open. This
displays the program’s header information and enables one or both of the
What to Send check boxes. If the program does not contain any SIMPL+
modules, only the SIMPL Program check box is enabled. If it does contain
SIMPL+ modules, then the SIMPL+ Program(s) check box will also be
enabled. Select one or both check boxes and then click Send Program to
begin the transfer.
NOTE: Refer to the respective Operations Guide for control system details about the
other fields in the “Send Program” window.
“Send Program” Window
4. To verify that the program has been transferred successfully, select
Diagnostics | Report Program Information. This should display a
window that provides details about the current program loaded into the
control system.
The following table provides corrective action for possible trouble situations. If
further assistance is required, please contact a Crestron customer service
representative.
ST-IO Troubleshooting
TROUBLE POSSIBLE
CAUSE(S)
Unexpected
response from
control system.
Green PWR LED
does not
illuminate.
Yellow NET LED
does not
Illuminate.
Network devices are not
communicating to the
control system.
ST-IO is not receiving
power.
Verify that proper cables are
Incorrect power supply. Use a Crestron power supply, PW-
Improper Net ID. Verify that ST-IO Net ID matches
Loose network
connection.
Further Inquiries
CORRECTIVE ACTION
From the Viewport, poll the network
(F4) to verify communication.
Confirm that power pack securely
plugged into outlet and that the
connector is properly attached to
the ST-IO.
securely attached to ST-IO NET
connectors (for Cresnet system
only).
1215, PW-1205, or Cresnet.
the Net ID in the SIMPL Windows
program. Refer to "Identity Code".
Verify that cables attached to ST-IO
NET connectors are proper and
secure.
If after reviewing this Operations Guide, you cannot locate specific information or
have questions, please take advantage of the Crestron award winning customer
service team by calling:
• In the US and Canada, call the Crestron corporate headquarters at
1-888-CRESTRON [1-888-273-7876].
• In Europe, call Crestron International at +32-15-50-99-50.
• In Asia, call Crestron Asia at +852-2341-2016.
• In Latin America, call Crestron Latin America at
+5255-5093-2160.
• In Australia and New Zealand, call Crestron Control Solutions at
+61-2-9737-8203.
As Crestron improves functions, adds new features, and extends the capabilities of
the ST-IO, additional information may be made available as manual updates. These
updates are solely electronic and serve as intermediary supplements prior to the
release of a complete technical documentation revision.
Check the Crestron website (www.crestron.com
availability and its relevance. Updates are available from the Downloads | Product
Manuals section and are identified as an “Addendum” in the Download column.
1. No merchandise may be returned for credit, exchange, or service without prior authorization
from CRESTRON. To obtain warranty service for CRESTRON products, contact the factory
and request an RMA (Return Merchandise Authorization) number. Enclose a note specifying
the nature of the problem, name and phone number of contact person, RMA number, and
return address.
2. Products may be returned for credit, exchange, or service with a CRESTRON Return
Merchandise Authorization (RMA) number. Authorized returns must be shipped freight
prepaid to CRESTRON, 6 Volvo Drive Rockleigh, N.J., or its authorized subsidiaries, with
RMA number clearly marked on the outside of all cartons. Shipments arriving freight collect
or without an RMA number shall be subject to refusal. CRESTRON reserves the right in its
sole and absolute discretion to charge a 15% restocking fee, plus shipping costs, on any
products returned with an RMA.
3. Return freight charges following repair of items under warranty shall be paid by
CRESTRON, shipping by standard ground carrier. In the event repairs are found to be nonwarranty, return freight costs shall be paid by the purchaser.
CRESTRON Limited Warranty
CRESTRON ELECTRONICS, Inc. warrants its products to be free from manufacturing defects in materials and
workmanship under normal use for a period of three (3) years from the date of purchase from CRESTRON,
with the following exceptions: disk drives and any other moving or rotating mechanical parts, pan/tilt heads and
power supplies are covered for a period of one (1) year; touchscreen display and overlay components are
covered for 90 days; batteries and incandescent lamps are not covered.
This warranty extends to products purchased directly from CRESTRON or an authorized CRESTRON dealer.
Purchasers should inquire of the dealer regarding the nature and extent of the dealer's warranty, if any.
CRESTRON shall not be liable to honor the terms of this warranty if the product has been used in any
application other than that for which it was intended, or if it has been subjected to misuse, accidental damage,
modification, or improper installation procedures. Furthermore, this warranty does not cover any product that
has had the serial number altered, defaced, or removed.
This warranty shall be the sole and exclusive remedy to the original purchaser. In no event shall CRESTRON
be liable for incidental or consequential damages of any kind (property or economic damages inclusive) arising
from the sale or use of this equipment. CRESTRON is not liable for any claim made by a third party or made by
the purchaser for a third party.
CRESTRON shall, at its option, repair or replace any product found defective, without charge for parts or
labor. Repaired or replaced equipment and parts supplied under this warranty shall be covered only by the
unexpired portion of the warranty.
Except as expressly set forth in this warranty, CRESTRON makes no other warranties, expressed or implied,
nor authorizes any other party to offer any warranty, including any implied warranties of merchantability or
fitness for a particular purpose. Any implied warranties that may be imposed by law are limited to the terms of
this limited warranty. This warranty statement supercedes all previous warranties.
Trademark Information
All brand names, product names, and trademarks are the sole property of their respective owners. Windows is a registered trademark of
Microsoft Corporation. Windows95/98/Me/XP and WindowsNT/2000 are trademarks of Microsoft Corporation.