SeaLevel SeaLINK DIN Rail USB Series User manual

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© Sealevel Systems, Inc. SeaLINK DIN Rail USB Serial Family Manual | SL9180 11/2021
SeaLINK USB Serial Manual
User Manual | SeaLINK DIN Rail USB Serial Family

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© Sealevel Systems, Inc. SeaLINK DIN Rail USB Serial Family Manual | SL9180 11/2021
Contents
CONTENTS............................................................................................................................................................................................................................2
INTRODUCTION...................................................................................................................................................................................................................3
BEFORE YOU GET STARTED..............................................................................................................................................................................................4
HARDWARE DESCRIPTION ...............................................................................................................................................................................................6
SEALATCH™USB ...............................................................................................................................................................................................................8
HARDWARE CONFIGURATION.......................................................................................................................................................................................10
SOFTWARE INSTALLATION .............................................................................................................................................................................................15
HARDWARE INSTALLATION.............................................................................................................................................................................................17
CONNECTOR PIN ASSIGNMENTS ..................................................................................................................................................................................18
MOUNTING OPTIONS .......................................................................................................................................................................................................19
SPECIFICATIONS...............................................................................................................................................................................................................20
APPENDIX A –TROUBLESHOOTING.............................................................................................................................................................................21
APPENDIX B –HOW TO GET ASSISTANCE..................................................................................................................................................................22
APPENDIX C –ELECTRICAL INTERFACE......................................................................................................................................................................23
APPENDIX D –ASYNCHRONOUS COMMUNICATIONS.............................................................................................................................................24
APPENDIX E –SILK SCREEN ..........................................................................................................................................................................................25
APPENDIX F –COMPLIANCE NOTICES.........................................................................................................................................................................26
WARRANTY ........................................................................................................................................................................................................................ 27

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© Sealevel Systems, Inc. SeaLINK DIN Rail USB Serial Family Manual | SL9180 11/2021
Introduction
Overview
SeaLINK DIN Rail USB serial interface adapters are the perfect way to add RS-232, RS-422, or RS-485 serial
peripherals such as barcode scanners, serial displays, and data acquisition modules to any USB port.
Offering one or two DB9M serial ports, models are available for RS-232, RS-422/485, and RS-232/422/485
interfaces. Serial ports are configurable via dip switches accessible through the case. There is never a
need to open the enclosure, which simplifies field installation and service.
Optically isolated models prevent damage caused by surges and ground loops commonly found in
industrial environments. Status LEDs display transmit and receive activity, and data rates up to 921.6K bps
are supported.
The serial ports appear as standard COM ports to the host computer enabling compatibility with legacy
software. SeaLINK USB serial interface adapters are USB bus powered, eliminating the need for external
power supplies.
All models integrate the patent-pending SeaLATCH USB port, which is fully compatible with standard USB
cables. When used with the included USB cable with a SeaLATCH USB type B connector, the metal
thumbscrew provides a secure connection to the device and prevents accidental cable disconnection.
Ready for DIN rail mounting, SeaLINK USB serial interface adapters include a removable plastic clip that
snaps onto 35mm DIN rail. The clip can also be attached to a wall, under a counter, or inside a panel with
optional screws.
Sealevel DIN Rail USB Serial Adapters Family
This manual covers the installation and operation of these devices:
Product
Part No.
Description
SeaLINK+Multi.DIN
(P/N 2109)
- 1 Port RS-232/422/485
SeaLINK+232I.DIN
(P/N 2111)
- 1 Port Isolated RS-232
SeaLINK+485I.DIN
(P/N 2112)
- 1 Port Isolated RS-422/485
SeaLINK+I.DIN
(P/N 2113)
- 1 Port Isolated RS-232/422-485
SeaLINK+2.DIN
(P/N 2209)
- 2 Port RS-232/422/485
SeaLINK+2/232I.DIN
(P/N 2211)
- 2 Port Isolated RS-232
SeaLINK+2/485I.DIN
(P/N 2212)
- 2 Port Isolated RS-422/485
SeaLINK+2I.DIN
(P/N 2213)
- 2 Port Isolated RS-232/422/485

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© Sealevel Systems, Inc. SeaLINK DIN Rail USB Serial Family Manual | SL9180 11/2021
Before You Get Started
What’s Included
The SeaLINK DIN Rail USB Serial Adapters ship with the following items. If any of these items is missing
or damaged, please contact Sealevel for replacement.
•SeaLINK USB Serial Adapter –(see part numbers on previous page)
•CA356 –USB Type A to SeaLATCH USB Type B Cable, 6’ in Length
•LB101 –DB9F Serial Loopback Adapter
Advisory Conventions
Warning
The highest level of importance used to stress a condition where damage could result to the
product, or the user could suffer serious injury.
Important
The middle level of importance used to highlight information that might not seem obvious or a
situation that could cause the product to fail.
Note
The lowest level of importance used to provide background information, additional tips, or other
non-critical facts that will not affect the use of the product.

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© Sealevel Systems, Inc. SeaLINK DIN Rail USB Serial Family Manual | SL9180 11/2021
Optional Items
Depending upon your application, you are likely to find one or more of the following items useful for
interfacing the SeaLINK USB Serial Adapters to real-world signals. All items can be purchased from our
website (http://www.sealevel.com) or by calling [phone]. For applicable accessories, pin out
diagrams are located on the website.
•CA127 –DB9 female to DB9 male serial extension cable. Extends a DB9 serial
connection by 72”.
•CA176 –DB9 female (RS-422) to DB25 male (RS-530) cable, 10” in length.
Converts Sealevel DB9 RS-422 pinout to the RS-530 DB25 pinout, useful where
RS-530 cabling already exists.
•CA177 –DB9 female to DB25 male modem cable, 72” in length. A standard
RS-232 modem cable providing a convenient connection to serial peripherals
with DB25 connectors. Connects to the host system via a DB9 connector.
•DB103 –DB9 female (RS-422) to DB9 female (Opto 22 Optomux) converter.
•RJ9S8 –DB9 female to RJ45 modular adapter. Helpful for converting DB9
serial port to RJ45 connector for using existing CAT5 infrastructure wiring.
•TB05 –A terminal block with a DB9 female connector breaking out to 9 screw
terminals. Simplifies field wiring of RS-422/485 networks with differing pin out
configurations.
•TB06 –A terminal block with dual DB9 female connectors breaking out to 18
screw terminals. Simplifies field wiring of RS-422/485 networks with differing
pin out configurations.
•SeaI/O-270U –Sealevel’s powered 7-port USB hub providing 1500 VAC of
optical isolation to the host system. Integrated SeaLATCH locking USB type A
& type B connectors (refer to the SeaLATCH USB section of this manual for
detailed information on SeaLATCH locking USB connectors and cables).
•HUB7i –Sealevel’s powered 7-port USB hub providing up to 5500 VAC of
optical isolation to the host system.

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Hardware Description
SeaLINK USB 1-Port Devices
Common Features
•Appears as virtual COM port to host machine
•Supports data rates to 921.6K bps
•Innovative SeaLATCH locking USB port provides secure cable connection
•Status LEDs display serial transmit and receive activity
•Popular DB9 male connector
•Easily snaps onto 35mm DIN rail
•USB bus powered eliminates external power supplies
SeaLINK+Multi.DIN (Item# 2109) Features
•Configurable for RS-232, RS-422, or RS-485 via dip switches
•Change configurations without opening the enclosure
•Automatic RS-485 enable/disable
•Non-isolated version
SeaLINK+232I.DIN (Item# 2111) Features
•Single RS-232 DB9 male serial port
•No dip switches to set; all changes can be made in software
•Easy way to connect RS-232 device to a USB port
•Optical isolation provides protection against surges and ground loops
SeaLINK+485I.DIN (Item# 2112) Features
•Configurable for RS-422 or RS-485 via dip switches
•Change configurations without opening the enclosure
•Automatic RS-485 enable/disable
•Optical isolation provides protection against surges and ground loops
SeaLINK+I.DIN (Item# 2113) Features
•Configurable for RS-232, RS-422, or RS-485 via dip switches
•Change configurations without opening the enclosure
•Automatic RS-485 enable/disable
•Optical isolation provides protection against surges and ground loops

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© Sealevel Systems, Inc. SeaLINK DIN Rail USB Serial Family Manual | SL9180 11/2021
SeaLINK USB 2-Port Devices
Common Features
Appears as virtual COM ports to host machine
Supports data rates to 921.6K bps
Innovative SeaLATCH locking USB port provides secure cable connection
Status LEDs display serial transmit and receive activity
Popular DB9 male connectors
Easily snaps onto 35mm DIN rail
USB bus powered eliminates external power supplies
SeaLINK+2.DIN (Item# 2209) Features
Configurable for RS-232, RS-422, or RS-485 via dip switches
Change configurations without opening the enclosure
Automatic RS-485 enable/disable
Non-isolated version
SeaLINK+2/232I.DIN (Item# 2211) Features
Two RS-232 DB9 male serial ports
No dip switches to set; all changes can be made in software
Easy way to connect RS-232 devices to a USB port
Optical isolation provides protection against surges and ground loops
SeaLINK+2/485I.DIN (Item# 2212) Features
Configurable for RS-422 or RS-485 via dip switches
Change configurations without opening the enclosure
Automatic RS-485 enable/disable
Optical isolation provides protection against surges and ground loops
SeaLINK+2I.DIN (Item# 2213) Features
Configurable for RS-232, RS-422, or RS-485 via dip switches
Change configurations without opening the enclosure
Automatic RS-485 enable/disable
Optical isolation provides protection against surges and ground loops

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© Sealevel Systems, Inc. SeaLINK DIN Rail USB Serial Family Manual | SL9180 11/2021
SeaLATCH™USB
SeaLINK USB serial adapters integrate the patent-pending SeaLATCH USB port, which is fully compatible
with standard USB cables. When used with the included USB cable (Item# CA356) with a SeaLATCH USB
type B connector, the metal thumbscrew provides a secure connection to the device and prevents
accidental cable disconnection.

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© Sealevel Systems, Inc. SeaLINK DIN Rail USB Serial Family Manual | SL9180 11/2021
SeaLATCH Locking USB Cables
SeaLATCH USB Connectors
SeaLATCH locking USB cables
integrate a small thumbscrew into
each USB connector. SeaLATCH
USB cables are fully
interchangeable with standard USB
cables. The thumbscrew provides a
secure metal-to-metal connection
preventing accidental
disconnection. SeaLATCH USB
cables are available in three
configurations.
Item# CA356
The CA356 is a 72” USB cable with
a SeaLATCH type B connector and
a standard USB type A connector.
This cable provides a secure
connection between Sealevel
products with a SeaLATCH type B
port and legacy USB type A ports.
The CA356 is included with
Sealevel devices with a SeaLATCH
type B port.
Item# CA332
The CA332 is a 72” cable with both
SeaLATCH type A and B
connectors. This cable secures
both ends of the cable to devices
with SeaLATCH USB ports and
offers complete protection against
accidental cable disconnection.
Item# CA355
The CA355 is a 72” cable with a
standard USB type B and a
SeaLATCH type A connector. This
cable provides a secure connection
between legacy USB devices and
Sealevel products with a
SeaLATCH type A port, such as the
isolated USB hub (Item# 270U).

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© Sealevel Systems, Inc. SeaLINK DIN Rail USB Serial Family Manual | SL9180 11/2021
Hardware Configuration
RS-232/422/485 Multi-Interface Products
Items# 2109, 2113, 2209, 2213
Dip switches on SeaLINK USB multi-interface serial adapters provide the ability to communicate with RS-
232, RS-422 or RS-485 devices. These switches are also used to set RS-485 enable modes and
termination options. Single port models have a single eight-position dip switch. Two port models have a
pair of eight-position dip switches allowing each port to be individually configured. All configuration
changes can be made without opening the enclosure.
DIP Switches
Switch
ON
OFF
8
2 Wire –
4 Wire –
7
2 Wire +
4 Wire +
6
RD 1K PU
–
5
RD 1K PD
–
4
120Ω Termination
–
3
Echo Off
Echo On
2
RS-485
RS-422
1
RS-422/485
RS-232
Switch
Function
8
RS-485 Option, OFF for RS-232, RS-422
ON: Connects TX–and RX–for two-wire operation
OFF: Separates TX–and RX–for four-wire operation
7
RS-485 Option, OFF for RS-232, RS-422
ON: Connects TX+ and RX+ for two-wire operation
OFF: Separates TX+ and RX+ for four-wire operation
6
RS-485 Option, OFF for RS-232, RS-422
ON: Adds a 1K Ω pull-up resistor to RX+
OFF: Leaves RX+ floating
5
RS-485 Option, OFF for RS-232, RS-422
ON: Adds a 1K Ω pull-down resistor to RX–
OFF: Leaves RX–floating
4
RS-422, RS-485 Option, OFF for RS-232
ON: Adds a 120Ω termination resistor between RX+ and RX–
OFF: No line termination
3
Two-Wire RS-485 Option, OFF for RS-232, RS-422, Four-Wire RS-485
ON: ECHO Off. The receiver is disabled when the transmitter is enabled. In a
two-wire setup the receiver will not echo back transmitted data
OFF: ECHO On. The receiver is always enabled. In a two-wire setup the
receiver will echo back all transmitted data
2
Mode Selection
ON: RS-485 mode. The transmitter lines TX+ and TX–are switched to high
impedance when the device is not actively transmitting data
OFF: RS-422 mode. The transmitter lines TX+ and TX–are always driven
1
Mode Selection
ON: RS-422, RS-485 mode
OFF: RS-232 mode

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© Sealevel Systems, Inc. SeaLINK DIN Rail USB Serial Family Manual | SL9180 11/2021
Dip Switches (continued)
RS-485 is ideal for multi-drop or network environments. RS-485 requires a tri-state driver that will allow the
electrical presence of the driver to be removed from the line. The driver is in a tri-state or high impedance
condition when this occurs. One of the unique features of SeaLINK USB serial devices is the ability to be
RS-485 compatible without the need for special software or drivers (RS-485 auto-enable).
Typically, each end of the RS-485 bus must have a line-terminating resistor (RS-422 terminates the receive
end only). A 120resistor is across each RS-422/485 input in addition to a 1Kpull-up and a 1Kpull-
down combination that biases the receiver inputs.
Only the ends of an RS-485 network should have the 120terminating resistor. The resistor may be
removed or inserted using dip switch #4. This allows you to customize the electrical interface to your
specific requirements.
To add the termination/bias resistors, use dip switches #4, #5, and #6 to select the ‘On’ position, and to
remove it, select the ‘Off’ position. If multiple devices are configured in an RS-485 network, only the devices
at each end should have switches #4, #5, and #6 ‘On’.
The final option that is configurable is the ‘Echo’ option. Two-wire RS-485 connects the TXto the RX.
Every time a character is transmitted it is also received. This can be beneficial if the software can handle
echoing (i.e., using received characters to throttle the transmitter), or it can confuse the system if the
software does not. Switch #3 is used to control the RS-485 enable/disable functions for the receiver circuit.
To select the ‘No Echo’ mode set switch #3 to ‘On’.
Common SeaLINK device configurations are shown in the examples below.
Example Settings
RS-422/485 Products

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© Sealevel Systems, Inc. SeaLINK DIN Rail USB Serial Family Manual | SL9180 11/2021
Items# 2112, 2212
Dip switches on SeaLINK USB RS-422/485 serial adapters provide the ability to communicate
with RS-422 or RS-485 devices. These switches are also used to set RS-485 enable modes and
termination options. Single port models have a single eight-position dip switch. Two port models
have a pair of eight-position dip switches allowing each port to be individually configured. All
configuration changes can be made without opening the enclosure.
Dip Switches
Switch
ON
OFF
8
2 Wire –
4 Wire –
7
2 Wire +
4 Wire +
6
RD 1K PU
–
5
RD 1K PD
–
4
120Ω Termination
–
3
Echo Off
Echo On
2
RS-485
RS-422
1
RS-422/485
–
Switch
Function
8
RS-485 Option, OFF for RS-422
ON: Connects TX–and RX–for two-wire operation
OFF: Separates TX–and RX–for four-wire operation
7
RS-485 Option, OFF for RS-422
ON: Connects TX+ and RX+ for two-wire operation
OFF: Separates TX+ and RX+ for four-wire operation
6
RS-485 Option, OFF for RS-422
ON: Adds a 1K Ω pull-up resistor to RX+
OFF: Leaves RX+ floating
5
RS-485 Option, OFF for RS-422
ON: Adds a 1K Ω pull-down resistor to RX–
OFF: Leaves RX–floating
4
RS-422, RS-485 Option
ON: Adds a 120Ω termination resistor between RX+ and RX–
OFF: No line termination
3
Two-Wire RS-485 Option, OFF for RS-422, Four-Wire RS-485
ON: ECHO Off. The receiver is disabled when the transmitter is enabled. In a
two-wire setup the receiver will not echo back transmitted data
OFF: ECHO On. The receiver is always enabled. In a two-wire setup the
receiver will echo back all transmitted data
2
Mode Selection
ON: RS-485 mode. The transmitter lines TX+ and TX–are switched to high
impedance when the device is not actively transmitting data
OFF: RS-422 mode. The transmitter lines TX+ and TX–are always driven
1
Mode Selection
ON: RS-422, RS-485 mode
OFF: Must be ‘ON’

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© Sealevel Systems, Inc. SeaLINK DIN Rail USB Serial Family Manual | SL9180 11/2021
Dip Switches (continued)
RS-485 is ideal for multi-drop or network environments. RS-485 requires a tri-state driver that will allow the
electrical presence of the driver to be removed from the line. The driver is in a tri-state or high impedance
condition when this occurs. One of the unique features of SeaLINK USB serial devices is the ability to be
RS-485 compatible without the need for special software or drivers (RS-485 auto-enable).
Typically, each end of the RS-485 bus must have a line-terminating resistor (RS-422 terminates the receive
end only). A 120resistor is across each RS-422/485 input in addition to a 1Kpull-up and a 1Kpull-
down combination that biases the receiver inputs.
Only the ends of an RS-485 network should have the 120terminating resistor. The resistor may be
removed or inserted using dip switch #4. This allows you to customize the electrical interface to your
specific requirements.
To add the termination/bias resistors, use dip switches #4, #5, and #6 to select the ‘On’ position, and to
remove it, select the ‘Off’ position. If multiple devices are configured in an RS-485 network, only the devices
at each end should have switches #4, #5, and #6 ‘On’.
The final option that is configurable is the ‘Echo’ option. Two-wire RS-485 connects the TXto the RX.
Every time a character is transmitted it is also received. This can be beneficial if the software can handle
echoing (i.e., using received characters to throttle the transmitter), or it can confuse the system if the
software does not. Switch #3 is used to control the RS-485 enable/disable functions for the receiver
circuit. To select the ‘No Echo’ mode set switch #3 to ‘On’.
Common SeaLINK device configurations are shown in the examples below.
Example Settings

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© Sealevel Systems, Inc. SeaLINK DIN Rail USB Serial Family Manual | SL9180 11/2021
RS-232 Products
Items# 2111, 2211
SeaLINK RS-232 only serial devices do not require any hardware settings and the enclosures should not be
opened. All configuration (e.g., baud rate, parity, etc.) settings can be made through the SeaCOM software
driver or application interface.
Proceed with installing the SeaCOM software driver as directed on the software installation page Be sure
to install all software prior to plugging the SeaLINK USB device into a USB port.

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Software Installation
Windows 98/ME/NT/2000/XP Installation
Do not install the Adapter in the machine until the software had been fully installed.
For Windows Users
1. Begin by locating, selecting, and installing the correct software from the Sealevel software driver
database.
2. Select the Part Number for your device from the listing. If you cannot locate the device that you
are installing, skip to #5 below and download the SeaCOM software before installing the hardware.
3. Click the ‘Install Drivers’ button.
4. The setup file will automatically detect the operating environment and install the proper
components.
5. The SeaCOM Asynchronous Serial Software Suite, SeaCOM for Microsoft Windows and other utility
softwares can also be downloaded from Sealevel’s website. Sealevel’s SeaCOM enhanced
serial driver makes using the features of our asynchronous serial products easy. In addition to
being completely compatible with the Microsoft Windows Serial Driver, SeaCOM also makes use
of advanced UART features of our board-based adapters without requiring changes to your
software application.
6. A screen may appear with the declaration: “The publisher cannot be determined due to the
problems below: Authenticode signature not found.” Please select the ‘Yes’ button and proceed
with the installation. This declaration simply means that the Operating System is not aware of the
driver being loaded. It will not cause any harm to your system.
7. During setup the user may specify installation directories and other preferred configurations. This
program also adds entries to the system registry that are necessary for specifying the operating
parameters for each driver. An uninstall option is also included to remove all registry/INI file entries
from the system.
To confirm that the SeaCOM driver has been successfully installed, click on the ‘Start’ button, and then
select ‘All Programs’. You should see the ‘SeaCOM’ program folder listed.
You are now ready to proceed with connecting the adapter to your system. Refer to the Hardware
Installation section for details.
Windows NT is not USB aware and thus cannot support this device.

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© Sealevel Systems, Inc. SeaLINK DIN Rail USB Serial Family Manual | SL9180 11/2021
Third Party Software Support
Third party software support for many HMI/MMI and other process control software is also available from
the Sealevel software database. For the most up to date information on third party software support, please
visit the 3rd-Party Software Archives - Sealevel.
Other Operating Systems
Refer to the appropriate section of the Serial Utilities Software.
LINUX INSTALLATION
Refer to Linux Archives - Sealevel. This link contains valuable information on installing your serial
adapter in the various Linux releases. Also included is a series of files explaining proper Linux syntax and
typical Linux serial implementations.
For additional software support, please call Sealevel Systems’ Technical Support, [phone]. Our
technical support is free and available from 8:00AM-5PM Eastern Time, Monday through Friday. For
email support contact: mailto:sup[email protected].

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© Sealevel Systems, Inc. SeaLINK DIN Rail USB Serial Family Manual | SL9180 11/2021
Hardware Installation
SeaLINK USB serial adapters can be connected to any spare USB port.
Do not install the Adapter in the machine until the software has been fully installed.
1. Connect the SeaLINK USB serial adapter to a USB port using the supplied USB
device cable.
2. The software drivers installed during setup will automatically recognize and
configure the device.
3. You should see one or more “New Hardware Found” windows, indicating the
actual device being created.
The installation will repeat twice for each COM port (a total of 4 times on two port devices). This
is a limitation in the way Windows installs external serial devices.
4. Next, view your system’s Device Manager.
5. You should have new COM: ports in the Ports (COM & LPT) Device Class
indicating the installation was successful.
6. You can access your new COM: port by using the assigned COM: identifier. This
assignment will vary from system to system.
7. To verify operation, use Sealevel Systems supplied WinSSD diagnostic utility.
WinSSD can be found in the Start, Programs group.
Your SeaLINK USB serial adapter is now ready for use.

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Connector Pin Assignments
RS-232 (DB9 Male)
This pin out covers the following products:
2109, 2111, 2113, 2209, 2211, and 2213
Pin #
Signal
Name
Mode
1
DCD
Data Carrier Detect
Input
2
RD
Receive Data
Input
3
TD
Transmit Data
Output
4
DTR
Data Terminal Ready
Output
5
GND
Ground
6
DSR
Data Set Ready
Input
7
RTS
Request To Send
Output
8
CTS
Clear To Send
Input
9
RI
Ring Indicator
Input
Please terminate any control signals that are not going to be used. The most common way to do this is connect
RTS to CTS and RI. Also, connect DCD to DTR and DSR. Terminating these pins, if not used, will help ensure
you get the best performance from your adapter.
RS-422/485 (DB9 Male)
This pin out covers the following products:
2109, 2112, 2113, 2209, 2212, and 2213
Pin #
Signal
Name
Mode
1
RD+
Receive Data Positive
Input
2
RD–
Receive Data Negative
Input
3
TD–
Transmit Data Negative
Output
4
TD+
Transmit Data Positive
Output
5
GND
Ground
6
–
No Connect
7
–
No Connect
8
–
No Connect
9
–
No Connect

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© Sealevel Systems, Inc. SeaLINK DIN Rail USB Serial Family Manual | SL9180 11/2021
Mounting Options
DIN Rail Mounting
SeaLINK USB serial adapters ship ready for
mounting on DIN rail. A small, rugged plastic clip
(shown below) is included that snaps onto 35mm
DIN rail. This offers a clean installation by locating
the USB serial adapters near the industrial control
equipment on the DIN rail. Additionally, innovative
SeaLATCH locking USB ports help prevent
accidental USB cable disconnection.
Wall/Panel Mounting
As an alternative to DIN rail, the versatile plastic clip
includes mounting holes that allow SeaLINK USB
serial adapters to be mounted to walls, under
counters, or inside panels. The plastic clip can be
permanently mounted to a surface while still
allowing the SeaLINK serial adapter to be easily
removed for service or configuration changes.
Table/Desktop Mounting
SeaLINK USB serial adapters are perfect for table
or desktop use. The units ship with four rubber feet
that help prevent the devices from sliding due to
vibration and help protect surfaces from scratches.
The small enclosures take up very little space.

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Specifications
Environmental Specifications
Specification
Operating
Storage
Temperature Range
0º to 70º C (32°F –158°F)
-50º to 105º C (-58°F –221°F)
Humidity Range
10 to 90% R.H. (Non-Condensing)
10 to 90% R.H. (Non-Condensing)
Manufacturing
All Sealevel Systems Printed Circuit boards are built to UL 94V0 rating and are 100% electrically tested.
These printed circuit boards are solder mask over bare copper or solder mask over tin nickel.
Power Requirements
Part No.
Supply Line
Rating
2109
2111
+5 VDC
100mA
2112
2113
2209
2211
2212
+5VDC
200mA
2213
+5VDC
300mA
Physical Dimensions
Board Length
4.5 inches (115 mm)
Board Width
3.5” (89 mm)
Board Height
1.3 inches (32 cm)