SeaLevel Relio R2 User manual

Sealevel Systems, Inc.
Sealevel.com
Phone [phone]
Relio R2 User Manual
RELIO R2

©Sealevel Systems, Inc. R2 Manual 2
SL9247 2/2017
Contents
Introduction .............................................................................................................................................................. 4
Features..................................................................................................................................................................... 5
COM Express Module/RAM Configuration options ............................................................................................ 5
Before You Get Started ............................................................................................................................................. 6
What’s Included..................................................................................................................................................... 6
Advisory Conventions ........................................................................................................................................... 6
Optional Items....................................................................................................................................................... 7
Specifications............................................................................................................................................................ 9
Mechanical Dimensions ........................................................................................................................................ 9
Environmental Specifications ............................................................................................................................... 9
Operating Temperature Range............................................................................................................................. 9
Power Supply ....................................................................................................................................................... 10
Power Input.......................................................................................................................................................... 11
System Operation ................................................................................................................................................... 12
Power Button ....................................................................................................................................................... 12
Power States ........................................................................................................................................................ 12
Reset Button ........................................................................................................................................................ 12
High Performance Serial Communication Ports................................................................................................ 12
CMOS Battery....................................................................................................................................................... 16
System Description................................................................................................................................................. 16
Front Panel I/O Connectors................................................................................................................................ 17
Rear Panel I/O Connectors ................................................................................................................................. 17
Mechanical Drawings .......................................................................................................................................... 18
Getting Started........................................................................................................................................................ 23
Where to Get Software ........................................................................................................................................ 23
SeaCOM Windows Installation ............................................................................................................................ 24

©Sealevel Systems, Inc. R2 Manual 3
SL9247 2/2017
Upgrading to the current SeaCOM driver .......................................................................................................... 25
Linux Support ...................................................................................................................................................... 25
Serviceable Parts..................................................................................................................................................... 26
Removal of Core Electronics............................................................................................................................... 26
Serial Port 3 ConfiguratioN ................................................................................................................................ 29
Input Current Protection Fuse............................................................................................................................ 29
Disk Drive Removal ............................................................................................................................................. 29
BIOS Considerations ............................................................................................................................................... 33
Appendix A - Handling Instructions...................................................................................................................... 34
Appendix B – Electrical Interface ........................................................................................................................... 35
Appendix C – Asynchronous Communications .................................................................................................... 36
Warranty .................................................................................................................................................................. 37

©Sealevel Systems, Inc. R2 Manual 4
SL9247 2/2017
Introduction
The Relio R2 is an exceptionally rugged embedded controller for operating in harsh environments. The R2’s
fanless and nearly cable-less structure ensures extensive durability for long-term usage. The R2 differs from
traditional industrial computer systems in that it is built using the PICMG COM Express architecture.
Sealevel has partnered with the leading COM Express module manufacturers to ensure our customers
benefit from the best in the industry. This manual will focus on the higher level features of the R2 computer
system. More detailed information (for example, connector pin outs) can be found in the 12000 COM
Express carrier board manual.
http://www.sealevel.com/support/article/AA-00588/
The R2 is compatible with Basic and Compact form factor Type 6 pin out COM Express modules. COM
Express is a widely supported implementation of Computer on Module (COM) design. The COM Express
architecture reduces the complexity, cost and time required for custom computer system design by
combining the processing, memory, video, Ethernet and USB functionality in a small, highly integrated
module. COM Express modules install on a carrier board that provides the application specific I/O and
external connectors best suited for the system requirements.
Sealevel COM Express carrier boards leverage the company’s years as a leader in I/O and communication
products to provide carrier board and full system solutions in the fastest time possible. Common I/O
features include serial, analog and digital I/O. Sealevel’s extensive library of proven I/O circuits can be
included as required to meet the specific I/O count, voltage ranges, and connector types.

©Sealevel Systems, Inc. R2 Manual 5
SL9247 2/2017
Features
The following features are included and installed on the Relio R2 models.
1 Display Port Compatible Video Output
2 Gigabit Ethernet Ports
2 RS-232 Serial Ports
1 RS-485 Serial Port
4 USB 2.0 Ports
1 Audio Line Input
1 Audio Line Output
Power and SATA Activity LED Indicators
Reset Button
Power Switch Button
PCI Express Mini Card Expansion (half-length only)
Accepts 2.5” SATA Disk Drive (not externally accessible)
18-36 VDC Input
COM EXPRESS MODULE/RAM CONFIGURATION OPTIONS
Part Number COM Express Module COM Express Module Description RAM
R21004 TCA/N2800 Type 6 Compact Module with Intel
Atom N2800 Cedarview CPU
4GB DDR3 1333 Non
-ECC
R23004 IBR-i3-3217UE Type 6 Standard Module with Intel
Core i3 3217UE Ivy Bridge CPU
4GB DDR3 1333 ECC
R23008 IBR-i3-3217UE Type 6 Standard Module with Intel
Core i3 3217UE Ivy Bridge CPU
8GB DDR3 1333 ECC
R23016 IBR-i3-3217UE Type 6 Standard Module with Intel
Core i3 3217UE Ivy Bridge CPU
16GB DDR3 1333 ECC
R27004 IBR-i7-3517UE Type 6 Standard Module with Intel
Core i7 3517UE Ivy Bridge CPU
4GB DDR3 1333 ECC
R27008 IBR-i7-3517UE Type 6 Standard Module with Intel
Core i7 3517UE Ivy Bridge CPU
8GB DDR3 1333 ECC
R27016 IBR-i7-3517UE Type 6 Standard Module with Intel
Core i7 3517UE Ivy Bridge CPU
16GB
DDR3 1333 ECC

©Sealevel Systems, Inc. R2 Manual 6
SL9247 2/2017
Before You Get Started
WHAT’S INCLUDED
The R2 is shipped with the following items. If any of these items are missing or damaged, please contact
Sealevel at 864.843.4343 for a replacement.
•R2 Computer System
•BK1042 (Wall mount brackets)
•TR140-US AC/DC Power Supply – Desktop 100VAC-240VAC input, 24V 2.7A output w/AC power
cable
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.

©Sealevel Systems, Inc. R2 Manual 7
SL9247 2/2017
OPTIONAL ITEMS
Depending upon your application, you are likely to find one or more of the following items useful with the
R2. All items can be purchased from our website (www.sealevel.com)or by calling our sales team at
[phone].
DB9 Female to DB9 Male Extension Cable, 72” Length (Item# CA127)
The CA127 is a standard DB9F to DB9M serial extension
cable. Extend a DB9 cable or locate a piece of hardware
where it is needed with this six foot (72) cable. The
connectors are pinned one-to-one so the cable is
compatible with any device or cable with DB9
connectors. The cable is fully shielded against
interference and the connectors are molded to provide
strain relief. Dual metal thumbscrews secure the cable
connections and prevent accidental disconnection.
9 Female to DB25 Male Standard RS-232 Modem Cable, 72” Length
(Item# CA177)
The CA177 is a standard AT-style RS-232 modem cable
with a DB9 female connector on one end and a DB25
male connector on the other end. Simply connect the
DB9 female connector to the DB9 serial port on the R2,
and then connect the DB25 male connector to your
RS232 serial modem or other compatible RS-232 serial
device. The six foot cable is fully shielded with dual
thumbscrews at each connector. The molded connectors
integrate strain relief to prevent damage to the cable or
connectors. All DB9 modem control signals are
implemented and the cable is pinned to EIA-232
standards.
Terminal Blocks
DB9 Female to 9 Screw Terminal Block (Item# TB05)
The TB05 terminal block breaks out a DB9 connector to
9 screw terminals to simplify field wiring of serial
connections. It is ideal for RS-422 and RS-485 networks,
yet it will work with any DB9 serial connection, including
RS-232. The TB05 includes holes for board or panel
mounting. The TB05 is designed to connect directly to
the R2 DB9 serial ports or any cable with a DB9M
connector.
DB9 Female to 5 Screw Terminal Block (RS-485) (Item# TB34)
The TB34 terminal block adapter offers a simple solution
for connecting RS485 field wiring to the R2’s serial port
3. The terminal block is compatible with 2-wire and
4wire RS485 networks. A pair of thumbscrews secures
the adapter to the DB9 male connector and prevents
accidental disconnection.

©Sealevel Systems, Inc. R2 Manual 8
SL9247 2/2017
CAT5 Patch Cable, 7’ In Length (Part# CA246)
Standard 7' CAT5 Unshielded Twisted Ethernet Pair Patch
Cable (RJ45) with blue jacket.
CAT5 Patch Cable, 10' In Length (Part# CA247)
Standard 10’ CAT5 Unshielded Twisted Pair Ethernet
Patch Cable (RJ45) with blue jacket.

©Sealevel Systems, Inc. R2 Manual 9
SL9247 2/2017
Specifications
MECHANICAL DIMENSIONS
Length 7.820 inches (19.86 cm)
Width14.744 inches (12.04 cm)
Height 2.672 inches (6.90 cm)
ENVIRONMENTAL SPECIFICATIONS
Specification Operating Storage
Temperature Range -40 to 50 ºC (-40 to 122 ºF)2-40 to 85 ºC (-40 to 185 ºF)
Humidity Range 10 to 90% R.H. Non-Condensing 10 to 90% R.H. Non-Condensing
OPERATING TEMPERATURE RANGE
Part Number COM Express Module Operating Temperature
Range Comment
R21004 TCA/N2800 0 - 50 °C
Requires Industrial Temperature SSD
for operating temperatures above 35C
with no airflow or conduction.
-40C to 50 °C optional. Contact Sales
R23004 IBR-i3-3217UE -40 - 50 °C Requires Industrial Temperature SSD3
R23008 IBR-i3-3217UE -40 - 50 °C Requires Industrial Temperature SSD3
R23016 IBR-i3-3217UE -40 - 50 °C Requires Industrial Temperature SSD3
R27004 IBR-i7-3517UE -40 - 50 °C Requires Industrial Temperature SSD3
R27008 IBR-i7-3517UE -40 - 50 °C Requires Industrial Temperature SSD3
1Width listed is for computer without mounting brackets. Total width with brackets is shown in drawings.
2Operating temperature is dependent on particular model. See the Operating Temperature Range section
for model capabilities.
3The minimum operating temperature rating of the SSD determines the minimum operating range of the
entire system during a cold start scenario. To ensure the full operating range, an SSD rated to operate at
-40C is required. Max operating temperature of 85C is required for operation at 50C.

©Sealevel Systems, Inc. R2 Manual 10
SL9247 2/2017
R27016 IBR-i7-3517UE -40 - 50 °C Requires Industrial Temperature SSD3
The R27004, R27008 and R27016 can operate with no airflow at 50C as long as the steady-state CPU usage
does not exceed 50%. If CPU usage is sustained at a workload greater than 50%, the CPU will throttle itself
back to keep its internal temperature in a safe range.
If the application environment requires the computer to operate at 50C with steady state CPU usage greater
than 50%, some additional cooling must be used to ensure safe operation of the electronics.
The R2 computer system is a fan-less, solid state computer that relies on thermal conduction to move heat
from internal components to the outside of the enclosure. The lid is designed as a finned heat sink to
increase overall surface area. Three main cooling methods can be used to optimize removal of heat from
the system.
1. Airflow
2. Thermal conduction through mounting
3. Computer orientation
Airflow over the lid provides the most effective heat removal of these three options. It is optimal to mount
the computer in an area that has either natural or forced airflow to constantly remove heat from the
enclosure.
Mounting the computer to a large thermally conductive surface (such as an I-Beam, steel cabinet or other
large metal surface) allows heat to travel through the enclosure and be dissipated into the large structure.
POWER SUPPLY
The power supply provided has a universal AC input. It provides 24 VDC @ 2.7 A max output to the R2
system. Typical power consumption varies depending on COM Express Module, memory capacity,
OS/software activity and peripheral devices. AC current draw will never exceed 1.4 A.
The included AC/DC power supply has an operational temperature range of 0 °C to 40 °C. If the
computer must be located in an environment greater than 40
°C, a different power source should
be used. Ensure the power source can supply the power listed below.
All necessary system voltages are generated from a single DC input capable of accepting 18 VDC to 36 VDC
(fed by above DC power supply).
Acceptable System Input Voltage 18 VDC-36 VDC
DC Current Rating (Dependent on COM
Express Module , input voltage and load)
375 mA-2150 mA

©Sealevel Systems, Inc. R2 Manual 11
SL9247 2/2017
POWER INPUT
The 12000 carrier board is designed to operate from 18VDC up to 36VDC. The current draw varies across
this range and is heavily dependent on the COM Express module, peripheral devices and installed software.
The connector at J11 is Molex PN 39-30-1040. Use Molex 39-01-2040 connector housing with Series 5556
Mini-Fit Jr crimp terminals.
CKT # Signal Name
1 + Positive DC Power
2 + Positive DC Power
3 - Negative DC Power (GND)
4 - Negative DC Power (GND)

©Sealevel Systems, Inc. R2 Manual 12
SL9247 2/2017
System Operation
POWER BUTTON
The power button on the front of the computer can be used to turn the system on, shut the system down or
place the computer in sleep states S3 or S4 (depending on OS support and configuration). The power
button can also wake the system up from sleep states S3 or S4.
The power button has a 3 second hardware debounce/delay built in so accidental shutdown does not occur.
This 3 second delay is present at all times so the power button must be held for 3 seconds before system
power up, power down, sleep or wake occurs.
POWER STATES
The R2 is designed to operate in four Power States as defined by ACPI.
S0 – Fully powered and operational
S3 – Suspended to memory (known as sleep in Windows)
S4 – Suspended to disk (known as Hibernate in Windows)
S5 – Powered down in standby (Windows Shutdown)
The system can transition from S0 to any of the three listed standby states (S3, S4, or S5) by either software
command or the Power Button. The system can then be awoken from either listed sleep/standby state by
holding the Power Button for 3 seconds. The system can also be awoken from S3 or S4 with a USB input
device such as a HID compliant keyboard or mouse.
To be awoken from a standby state with a USB device, the device must be present when the
computer enters the sleep state and must remain connected for the duration of the sleep state.
These power states are supported by Windows 8, Windows 7, Windows Vista, and Windows XP.
RESET BUTTON
The reset button at BP1 (located near the USB Type A and RJ45 connectors) generates a system level reset
(CPU included). Hold for 1 second to activate.
HIGH PERFORMANCE SERIAL COMMUNICATION PORTS
The R2 provides three high speed serial communication ports supporting data rates up to 921.6 kbps. Ports
1 and 2 are RS-232 serial ports. Port 3 is an RS-485 port for communication with equipment up to 4000 ft.
away from the computer or in noisy environments. The RS-485 2-wire mode is optimized for “Multi-Drop” or
“Party-line” operations selecting data from multiple peripherals (as many as 32 unit load devices can be
connected on an RS-485 bus).
In RS-485 mode, our special auto-enable feature allows the RS-485 ports to be viewed by the operating
system as a COM: port. This allows the software application to utilize the serial port for RS-485
communication without the need to control the direction of data between the master and slave device. Our
on-board hardware automatically handles the RS-485 driver enable.

©Sealevel Systems, Inc. R2 Manual 13
SL9247 2/2017
Features of the serial ports include:
•16C954 buffered UARTs with 128-byte FIFOs
•Software configurable clock prescaler and divisor support wide range of baud rates
•Supports 9-bit protocol framing
•Each port supports data rates to 921.6 kbps
•All modem control signals implemented on RS-232 ports
•RS-485 line termination, pull-up and pull-down resistors are selectable via dipswitch on Port 3
•Automatic RS-485 enable/disable in hardware on Port 3
•Uses Sealevel’s SeaCOM enhanced serial driver
SERIAL PORT SETUP
The R2 Serial Ports are assigned I/O addresses and IRQs by the COM Express module BIOS or by a “Plug-n-
Play” Operating System.
CLOCK MODES
The R2 Serial ports are implemented on a PCIe x1 lane and therefore derive a 62.5MHz clock from the PCI
express link which is divided by an 8 bit clock prescaler and a 16 bit clock divisor to provide a wide range
of possible baud rates. Note that there are many combinations that can give the same result (e.g.
Prescaler=1 and Divisor = 8, Prescaler =2 and Divisor = 4, or Prescaler=8 and Divisor = 1). As long as the
calculated data rate is within +/- 2% you should communicate fine.
BAUD RATES
The following table shows some common data rates and the rates you should choose to achieve them when
using the R2 computer.
For This Data Rate Clock Prescaler Choose This Divisor DLM:DLL
1200 bps 3.625 898
2400 bps 3.625 449
4800 bps 1.875 434
9600 bps 1.875 217
19.2K bps 1.375 148
38.4K bps 1.375 74
57.6K bps 22.625 3
115.2K bps 1 34
230.4K bps 1 17
460.8K bps 2.125 4
921.6K bps 2.125 2

©Sealevel Systems, Inc. R2 Manual 14
SL9247 2/2017
Many non-standard baud rates can be achieved by adjusting the Prescaler and Divisor. Contact
Sealevel Systems Technical Support for assistance
in determining the correct parameters for your
application.
SERIAL PORT 3 OPERATION
Serial port 3 is the RS-485 serial port on the R2 system.
For RS-485 half-duplex mode, set the jumper on J12 to pins 2-3 and, in the Device Manager Port
Properties Advanced tab, enable the “16950 RS
-485 Enable” feature. The COM Express carrier
board must be removed to access the J12 and SW1 to configure the Port 3.
See the Serviceable Parts section of the manual for steps to access the internal electronics.

©Sealevel Systems, Inc. R2 Manual 15
SL9247 2/2017
Typical settings for Serial Port 3 configuration options are shown below:
Switch Pin RS485 4 Wire RS485 2 Wire
J12 N/A Connect pins 1 and 2 Connect pins 2 and 3
SW1-1 T4ON ON
SW1-2 PU ON ON
SW1-3 PD ON ON
SW1-4 L OFF ON
SW1-5 L OFF ON
Switch
Name
Function
1
T
Adds or removes the 120 ohm termination.
2
PU
Adds or removes pull-up resistor in the RS-485 receiver circuit
3 PD Adds or removes pull-down resistor in the RS-485 receiver circuit
4
L
Connects the TX+ to RX+ for RS-485 two-wire operation.
5
L
Connects the TX- to RX- for RS-485 two-wire operation.
4Termination, Pull-Up and Pull-Down may not be necessary depending on the equipment to which the R2
Port 3 is connecting.

©Sealevel Systems, Inc. R2 Manual 16
SL9247 2/2017
CMOS BATTERY
The R2 includes a 3V DC type CR2032 battery that supplies the RTC and CMOS memory of the COM Express
CPU module.
Danger of explosion if battery is incorrectly replaced – Replace only with the same or
equivalent type recommended by the manufacturer. Dispose of used batteries according
to the manufacturer’s instructions.
To fulfill the requirements of EN 60950, the R2 incorporates two current-limiting devices (resistor and
diode) in the battery power supply path.
System Description
The following I/O connectors use industry standard pin outs for maximum compatibility.
The Reference Designators are printed on the PCB and are provided for quick reference to the 12000
manual. See the 12000 (carrier board only) product manual for detailed connector descriptions.
http://www.sealevel.com/support/article/AA-00588/
Reference
Designator
Function Connector Type
P8 Video Output DisplayPort
P3 10/100/1000 (Gigabit Ethernet) Network
Connections
RJ45
P5
RS-232 Serial Ports
DB9 Male
J2
USB 2.0 Device
USB Type A
J5
USB 2.0 Device
USB Type A
J6
USB 2.0 Device
USB Type A
J8
USB 2.0 Device
USB Type A
P2
Audio Input/output
3.5mm stereo headphone
CN1 PCIe Mini Card PCIe Mini card connector
P4
SATA Disk Drive
22 pin SATA

©Sealevel Systems, Inc. R2 Manual 17
SL9247 2/2017
FRONT PANEL I/O CONNECTORS
REAR PANEL I/O CONNECTORS

©Sealevel Systems, Inc. R2 Manual 18
SL9247 2/2017
MECHANICAL DRAWINGS
Top View

©Sealevel Systems, Inc. R2 Manual 19
SL9247 2/2017
Bottom View

©Sealevel Systems, Inc. R2 Manual 20
SL9247 2/2017
The mounting brackets included with the computer allow options for two methods.
•Flush Mounting - If the computer is to be mounted to a thermally conductive surface it is
recommended to mount the computer flush to the surface to transfer heat into the structure.
Front View
Rear View
Side View