Quectel RMU500-EK User manual

RMU500-EK User Guide
5G Module Series
Version: 1.0
Date: 2020-11-23
Status: Released
www.quectel.com

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Copyright
The information contained here is proprietary technical information of Quectel wireless solutions co., ltd.
Transmitting, reproducing, disseminating and editing this document as well as using the content without
permission are forbidden. Offenders will be held liable for payment of damages. All rights are reserved in
the event of a patent grant or registration of a utility model or design.
Copyright © Quectel Wireless Solutions Co., Ltd. 2020. All rights reserved.

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About the Document
Revision History
Version
Date
Author
Description
-
2019-12-19
Tom TANG/
Shaky LIN
Creation of the document
1.0
2020-11-23
Tom TANG/
Shaky LIN
First official release

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Contents
About the Document...................................................................................................................................3
Contents.......................................................................................................................................................4
Table Index...................................................................................................................................................5
Figure Index.................................................................................................................................................6
1Introduction..........................................................................................................................................7
1.1. Safety Information ...................................................................................................................7
2General Overview.................................................................................................................................9
2.1. Key Features...........................................................................................................................9
2.2. Component Placement of the EVB .......................................................................................10
2.3. Top View of the EVB.............................................................................................................11
2.4. EVB Kit Accessories..............................................................................................................11
3Components/Interfaces.....................................................................................................................13
3.1. Components/Interfaces of the EVB.......................................................................................13
3.1.1. Power Supply (J101/J301).............................................................................................13
3.1.2. M.2 Interface (J201).......................................................................................................14
3.1.3. USB Interface (J301)......................................................................................................14
3.1.4. (U)SIM Interface (J401)..................................................................................................15
3.1.5. Status Indicator (D104/D107) ........................................................................................17
3.1.6. RF Cables and Antennas...............................................................................................18
3.1.6.1. Antenna Design....................................................................................................18
3.1.6.2. Antenna Efficiency................................................................................................18
3.1.6.3. Antenna Specification...........................................................................................19
3.2. Component Assembling Steps..............................................................................................20
4EVB Operation Procedures...............................................................................................................24
4.1. Turn on the Module...............................................................................................................24
4.2. Communication Via the USB Interface .................................................................................24
4.3. Firmware Upgrade.................................................................................................................25
4.4. Turn Off the Module ..............................................................................................................26
5Appendix References........................................................................................................................27

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Table Index
Table 1: Key Features.................................................................................................................................. 9
Table 2: Interfaces and Functions of the EVB........................................................................................... 10
Table 3: Accessories List...........................................................................................................................11
Table 4: Pin Definition of J401...................................................................................................................16
Table 5: Description of Status Indicator LEDs...........................................................................................17
Table 6: Antenna Specification ..................................................................................................................19
Table 7: Related Documents......................................................................................................................27
Table 8: Terms and Abbreviations............................................................................................................. 27

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Figure Index
Figure 1: Component Placement of the EVB (Top View)..........................................................................10
Figure 2: EVB Top View............................................................................................................................. 11
Figure 3: EVB Power Supply Interfaces.....................................................................................................13
Figure 4: M.2 Connector on the EVB......................................................................................................... 14
Figure 5: USB Connector........................................................................................................................... 14
Figure 6: Connection Between PC and EVB.............................................................................................15
Figure 7: Simplified Connecting Schematic for (U)SIM Card Connector J401.......................................... 15
Figure 8: Pin Assignment of (U)SIM Card Connector J401.......................................................................16
Figure 9: Status Indicators......................................................................................................................... 17
Figure 10: Reference Design for Antennas ...............................................................................................18
Figure 11: Antenna Efficiency at 700–960 MHz and 1.7–6 GHz............................................................... 18
Figure 12: Antenna Efficiency at 1.7–6 GHz.............................................................................................. 19
Figure 13: Assembling Step 1.................................................................................................................... 20
Figure 14: Assembling Step 2.................................................................................................................... 21
Figure 15: Assembling Step 3.................................................................................................................... 21
Figure 16: Assembling Step 4....................................................................................................................22
Figure 17: Assembling Step 5....................................................................................................................22
Figure 18: Assembling Step 6....................................................................................................................23
Figure 19: USB Ports................................................................................................................................. 24
Figure 20: COM Port Setting Field on QCOM (USB AT Port Connection)................................................25
Figure 21: Configurations for Firmware Upgrade......................................................................................25

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1Introduction
This document introduces the evaluation board RMU500-EK for RM500Q-GL, the assistant tool for
developers to develop and test the modules, and describes how to use it.
1.1. Safety Information
The following safety precautions must be observed during all phases of the operation, such as usage,
service or repair of any cellular terminal or mobile incorporating the module. Manufacturers of the cellular
terminal should notify users and operating personnel of the following safety information by incorporating
these guidelines into all manuals of the product. Otherwise, Quectel assumes no liability for customers’
failure to comply with these precautions.
Full attention must be paid to driving at all times in order to reduce the risk of an
accident. Using a mobile while driving (even with a handsfree kit) causes
distraction and can lead to an accident. Please comply with laws and regulations
restricting the use of wireless devices while driving.
Switch off the cellular terminal or mobile before boarding an aircraft. The operation
of wireless appliances in an aircraft is forbidden to prevent interference with
communication systems. If there is an Airplane Mode, it should be enabled prior to
boarding an aircraft. Please consult the airline staff for more restrictions on the use
of wireless devices on an aircraft.
Wireless devices may cause interference on sensitive medical equipment, so
please be aware of the restrictions on the use of wireless devices when in
hospitals, clinics or other healthcare facilities.
Cellular terminals or mobiles operating over radio signal and cellular network
cannot be guaranteed to connect in certain conditions, such as when the mobile bill
is unpaid or the (U)SIM card is invalid. When emergent help is needed in such
conditions, use emergency call if the device supports it. In order to make or receive
a call, the cellular terminal or mobile must be switched on in a service area with
adequate cellular signal strength. In an emergency, the device with emergency call
function cannot be used as the only contact method considering network
connection cannot be guaranteed under all circumstances.

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The cellular terminal or mobile contains a transceiver. When it is ON, it receives
and transmits radio frequency signals. RF interference can occur if it is used close
to TV sets, radios, computers or other electric equipment.
In locations with explosive or potentially explosive atmospheres, obey all posted
signs and turn off wireless devices such as mobile phone or other cellular
terminals. Areas with explosive or potentially explosive atmospheres include
fuelling areas, below decks on boats, fuel or chemical transfer or storage facilities,
and areas where the air contains chemicals or particles such as grain, dust or
metal powders.

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2General Overview
Quectel supplies RMU500-EK for designers to develop applications based on RM500Q-GL module and to
test basic functionalities of it.
2.1. Key Features
The following table describes the detailed features of RMU500-EK.
Table 1: Key Features
Features
Description
Power Supply
DC supply: +5 V/ 2.5 A for the EVB
M.2 Interface
Support RM500Q-GL
(U)SIM Interface
Support (U)SIM card: 2.95/1.8 V
USB Interface
USB 3.1 & USB 2.0
Status Indication
2 LEDs available for signal indication
Physical Characteristics
Size: 100 mm ×60 mm