Moxa Technologies RKP Series User manual

P/N: 1802001100001
*1802001100001*
RKP Series
Quick Installation Guide
Version 1.0, September 2023
Technical Support Contact Information
www.moxa.com/support

2023 Moxa Inc. All rights reserved.

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Overview
The RKP series rackmount computers are powered by an Intel Atom®,
11th Gen Intel® Celeron®, or Intel® Core™ i5/i7 processor. The
computers come with a rich set of interface options including up to 10
software-selectable RS-232/422/485 serial ports, up to 12 Gigabit
Ethernet ports, and 8 digital inputs and 8 digital outputs. The
communication interfaces are located on the front and rear sides of the
product, enabling easy access and expansion for industrial applications.
Two hand-rotated 2.5” SSD storages and an outer replaceable RTC
battery design deliver a reliable, durable, and versatile platform for a
more user-friendly option.
Designed as 1U standard form factor fanless rackmount computers with
an operating temperature range of -30 to 60°C and a build-in TPM 2.0
module, the RKP computers are ideal as reliable and secure computing
platforms for industrial applications in extreme operating environments.
Package Checklist
Each basic system model is shipped with the following standard items.
Before installing the RKP series, verify that the package contains the
following items:
•RKP rackmount computer (mounting ears attached)
•2-pin terminal block for DC power
•2 10-pin terminal blocks for DI/DO
•Pack of 8 screws for the storage trays
•Quick Installation Guide
•Warranty card
NOTE
Please notify your sales representative if any of the above
items are missing or damaged.
Hardware Overview
Front View
RKP-A110-E2-T/RKP-A110-E4-T Models

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RKP-A110-E2-8L-T/RKP-A110-E4-8L-T Models
RKP-A110-E2-8C-T/RKP-A110-E4-8C-T Models
RKP-A110-E2-2L4C-T/RKP-A110-E4-2L4C-T Models
RKP-C110-C1-T/RKP-C110-C5-T/RKP-C110-C7-T Models
RKP-C110-C1-8L-T/RKP-C110-C5-8L-T/RKP-C110-C7-8L-T Models

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RKP-C110-C1-8C-T/RKP-C110-C5-8C-T/RKP-C110-C7-8C-T Models
RKP-C110-C1-2L4C-T/RKP-C110-C5-2L4C-T/RKP-C110-C7-2L4C-T Models
Rear View
RKP-A110 Series
RKP-C110 Series

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Dimensions
RKP-A110/RKP-C110 Series
LED Indicators
The following table describes the function of the LED indicators located
on the front panel of the RKP computers.
LED Name
Status
Function
Power
Green
Power is ON
OFF
No power input or any other power error
Ethernet
(10/100
Mbps)
(1000 Mbps)
Green Steady ON: 10/100 Mbps Ethernet link
Blinking: Data is being transmitted or
received
Yellow
Steady ON: 1000 Mbps Ethernet link
Blinking: Data is being transmitted or
received
OFF
No Ethernet connection
Storage (2.5”
SSD)
Yellow
Blinking: Data is being accessed from the
SSD drive
OFF
Data is not being accessed from the SSD
drive
Installing the RKP Computer
The RKP computers come preinstalled with two rack-mounting ears. To
mount the computer on to a rack, do the following:

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Step 1: If the mounting ears are not installed, use four screws each to
attach the mounting ears on both sides of the computer.
Step 2:
Place the RKP on a rack and use another four screws to secure the
rack-mount ears to the rack.
The second set of four screws
needs to be purchased
separately. Refer to the
figure on the right for the
specifications.
NOTE
This computer is intended to be installed only in an area with
restricted access. In addition, for safety reasons, the computer
should be installed and
handled only by qualified and
experienced professionals.
Connecting the Power
The RKP computers are provided with 2-pin power input connectors in a
terminal block on the front panel. Insert the power-cord wires into the
connectors and tighten them to secure the wires in place. Plug in the
power cable to a power source. The power LED will light up to indicate
that power is being supplied to the computer. It should take about 30
to 60 seconds for the operating system to complete the boot-up
process.
Pin
Definition
1
V+
2
V-

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ATTENTION
This product is intended to be supplied by a Listed Power
Supply with output marked LPS and rated to deliver 12 VDC at
a maximum of 5.4 A, or 24 VDC at a maximum of 2.6 A
, and
minimum Tma=60
˚
C. If you need assistance with purchasing a
power adapter, contact the Moxa technical support team.
ATTENTION
Before connecting the RKP computer to the DC power inputs,
e
nsure that the DC power source voltage is stable.
•
The wiring for the input terminal block shall be installed by
qualified and experienced professionals.
•Wire Type: Cu, FW2
•Use 18-12 AWG wire size and a torque value of 0.5 N-
m.
•
Use only one conductor in a clamping point between the
DC power source and the power input.
NOTE
If using Class I adapter, the power cord adapter should be
connected to a socket outlet with an earthing connection or the
power cord and adapter must comply with Class II
construction.
NOTE
For surge protection, connect the
grounding connector located
below the power connector with the earth (ground) or a metal
surface.
An
18 AWG cable size conductor must be used when the
connection to the external grounding screw is utilized. The heat
sink is grounded to the chassis by an internal screw.
Warning
為避免電磁干擾，本產品不應安裝或使用於住宅環境。
Connecting Displays
The RKP computer comes with an HDMI connector and a VGA connector
located on the front panel for connecting audio or video devices.
NOTE
Use HDMI-certified cables for a reliable audio or video
connection.

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Communication Connections
Ethernet Ports
The 10/100/1000 Mbps Ethernet ports use RJ45 connectors. The pin
assignments are shown below:
Pin
10/100 Mbps
1000 Mbps
1
ETx+
TRD(0)+
2
ETx-
TRD(0)-
3
ERx+
TRD(1)+
4
–
TRD(2)+
5
–
TRD(2)-
6
ERx-
TRD(1)-
7
–
TRD(3)+
8
–
TRD(3)-
NOTE
For reliable Ethernet connections, we recommend enabling the
ports in standard
temperatures and keeping them enabled in
high/low temperature environment.
Serial Ports
The serial ports use DB9 connectors. Each port can be configured by
software as a RS-232, RS-422, or RS-485 port. The pin assignments
are shown below:
Pin RS-232 RS-422
RS-485
(4-wire)
RS-485
(2-wire)
1
DCD
TxDA(-)
TxDA(-)
–
2
RxD
TxDB(+)
TxDB(+)
–
3
TxD
RxDB(+)
RxDB(+)
DataB(+)
4
DTR
RxDA(-)
RxDA(-)
DataA(-)
5
GND
GND
GND
GND
6
DSR
–
–
–
7
RTS
–
–
–
8
CTS
–
–
–
USB Hosts
Three USB 3.0 Type-A connectors are located on the front panel. The
ports support keyboard and mouse devices and can also be used to
connect a flash disk for storing large amounts of data.
Digital Inputs/Digital Outputs
The RKP computer comes with four digital inputs and four digital
outputs in a terminal block. Refer to the following figures for the pin
definitions and the current ratings.
Digital Inputs
Dry Contact:
Logic 0: Close to
Ground
Logic 1: Open
Voltage:
0 to 24 VDD
Digital Outputs
Current
Rating:
200 mA per
channel
Voltage
:
0 to 24 VDC

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For the wiring method, refer to the following diagram:
For additional details, refer to the RKP Series Hardware User Manual.
Installing a Storage Drive
The RKP computer is provided with two storage slots on the rear panel
for storage expansion.
To install an SSD drive, do the following:
1. Unfasten the two screws on the storage slot.
2.
Pull out the storage tray and
layout four screws from the
pouch included in the product
package.
3. Place the storage drive on the
tray.

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4. Reverse the storage tray and
fasten four screws to secure
the storage drive to the tray.
5. Insert the storage tray into the slot and fasten secure the tray in
place with two screws.
6. Use the same method to install a storage drive in the other slot.
Replacing the Battery
The RKP computer comes with one slot for a battery on the bottom
panel of the computer. A lithium battery (3 V / 200 mAh) is preinstalled
in the slot.
To replace the battery, do the following:
1. Unfasten the two screws on the battery cover.
2. Take off the cover.
The battery is attached to the slot cover as indicated in the image.
3. Unplug the connector of the battery-cover assembly from the
internal wire of the slot.
4. Remove the two screws on the metal plate attached to the battery
holder.