CrewPlex MR10-900 User manual

OPERATING MANUAL
MR10-900
CrewPlex, LLC
205 Technology Parkway
Auburn, Alabama 36830 USA
Phone [phone]
Fax [phone]
www.crewplex.com
COPYRIGHT © 2022 CrewPlex, LLC. All rights reserved. CrewPlex® and SmartBoom® are registered trademarks of CoachComm,
LLC. All other trademark references in this document are property of their respective owners.
Document Reference: D0000648_A
™

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CONTENTS
INTRODUCTION..............................................................................................................................................1
WHAT’S INCLUDED WITH MR10-900? .......................................................................................................2
CONTROLS ......................................................................................................................................................3
DISPLAY INDICATORS ...................................................................................................................................3
SETUP...............................................................................................................................................................4
BATTERY..........................................................................................................................................................6
OPERATION.....................................................................................................................................................6
MENU SETTINGS.............................................................................................................................................8
DEVICE SPECIFICATIONS .............................................................................................................................10
PRODUCT CARE AND MAINTENANCE .......................................................................................................11
PRODUCT SUPPORT ......................................................................................................................................11
LICENSE INFORMATION................................................................................................................................12
CREWPLEX WARRANTY STATEMENT........................................................................................................13

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INTRODUCTION
We at CrewPlex want to thank you for purchasing MR10-900. MR10-900 is a robust, two-channel,
full-duplex, multi-user, wireless intercom system that operates in the 900MHz frequency band to
provide superior range and performance, all without the need for a basestation. The system features
lightweight radios and provides exceptional sound quality, enhanced noise cancellation, and long-
life battery operation. In addition, the MR10-900’s pack design allows for a variety of mounting
arrangements and is built to endure the wear and tear of everyday use, as well as the extremes of
outdoor environments.
In order to get the most out of your new MR10-900, please take a few moments to read this manual
completely so that you better understand the operation of this product. This document applies to
model CP-MR10-900. For questions not addressed in this manual, feel free to contact the CrewPlex
Customer Support Department using the information on page 11.
PRODUCT FEATURES
• Flexible Clip-On Design
• Various Mounting Clip Options
• Compatible with CP-DR10-900 BeltPacks
• Robust, Two-Channel System
• Simple to Operate
• Up to 10 Full-Duplex Users
• Pack-to-Pack Communication
• Unlimited Listen-Only Users
• Unlimited Shared Users
• 900MHz Frequency Band
• Encrypted FHSS Technology
• Ultra Compact, Small, and Lightweight
• Long, 8-Hour Battery Life
• Available Two-Way Radio Integration
• Multiple Headset and Earset Options

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WHAT’S INCLUDED WITH DR10-900?
• Wireless Pack
• Li-Ion Battery (Installed during shipment)
• USB Charging Cable
• Quick Start Guide
• Product Registration Card
OPTIONAL ACCESSORIES
Part Number Description
CrewPlex Accessories
CAC-CLIP-HHFB Clip for Full Brim Hard Hats
CAC-CLIP-HHST Clip for Standard Brim Hard Hats
CHS-MR10-SML Clip-On Lite Left Headset
CHS-MR10-SMR Clip-On Lite Right Headset
BT-11 Replacement Li-Ion Battery
CAC-MR10-BR01 Rubber Cover for MR10 Microphone Boom Input
CAC-USB5-CHG CrewPlex 5-Port USB Charger
CAC-CP-SFTCASE CrewPlex Soft Travel Case
Headsets and Adapter Accessories
CHS-HH210E-DMGS SmartBoom PRO Dual Ear CrewPlex Headset with Dual Mini Connector for MR10
CHS-HH210R-DMGS CrewPlex Hard Hat/Helmet Headset with Dual Mini Connector for MR10
CHS-IEL-M CrewPlex In-Ear Headset, Single Ear Left Only with Single Mini Connector for DR5,
DR10, and MR10
CHS-IELPTT-M CrewPlex In-Ear Headset with Push-To-Talk (PTT) Button, Single Ear Left Only with
Single Mini Connector for DR5, DR10, and MR10
Two-Way Radios and Adapter Accessories
CRC-2WAY-IO CrewPlex Two-Way Radio In/Out Adapter for DR10 series (requires additional two-
way radio cable)
CRC-MOT-X83 CrewPlex Two-Way Radio Adapter Cable for Motorola Radios
CRC-KEN-2P CrewPlex Two-Way Radio Adapter Cable for Kenwood Radios

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CONTROLS
DISPLAY INDICATORS
Status/
Charge LED
Power Button
Talk Button
Headset Connection
USB Charger
Connection
Volume +/– Buttons
Mode Button
Short press to change channel
Long press to enter menu
LCD Screen
Antenna
Mic Connection
Master Pack Indicator
Battery Status
Mode Indicator
Signal Indicator
Talk Indicator
Push-To-Talk Indicator
Lock Indicator
Active Channel
Volume Level
Status/
Charge LED
Power Button
Talk Button
Headset Connection
USB Charger
Connection
Volume +/– Buttons
Mode Button
Short press to change channel
Long press to enter menu
LCD Screen
Antenna
Mic Connection
Master Pack Indicator
Battery Status
Mode Indicator
Signal Indicator
Talk Indicator
Push-To-Talk Indicator
Lock Indicator
Active Channel
Volume Level

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SETUP
1. Connect a headset to the pack.
2. Power on. Press and hold the POWER button for two (2) seconds, until the screen turns on.
3. Access the menu. Press and hold the MODE button for three (3) seconds, until the screen
changes to <SETTING MODE>. Short-press MODE to scroll through the settings, and then scroll
through setting options using VOLUME +/−. Press and hold MODE to save your selections and
exit the menu.
a. Select a Group. Select a group number from 00–51.
Important: Packs must have the same group number to communicate.
IF OPERATING THE PACK IN REPEATER MODE*
b. Select an ID. Select a unique ID number.
• Repeater Mode ID options: 00 (Master), 01–08 (Full Duplex), S (Shared), L (Listen).
• One pack must always use the “00” ID and serve as the Master for proper system function.
An “M” indicator designates the Master pack on its LCD.
• Listen-only packs must use the “L” ID. You may duplicate ID “L” on multiple packs.
• Shared packs must use the “S” ID. You may duplicate ID “S” on multiple packs, but only one
shared pack may talk at a time.
• When using “S” IDs, the last full-duplex ID (“08”) cannot be used in the Repeater mode.
c. Confirm pack’s Security Code. Packs must use the same security code to work together as a
system.
*Repeater Mode is the default setting. See page 9 for information about changing mode.
IF OPERATING THE PACK IN ROAM MODE
b. Select an ID. Select a unique ID number.
• Roam Mode ID options: 00 (Master), 01 (Submaster), 02-09, S (Shared), L (Listen).
• One pack must always be “00” ID and serve as the Master, and one pack must always be
set to “01” and serve as the Submaster for proper system function.
• The Master and Submaster must be located in positions where they always have an
unobstructed line of sight to each other.
• Listen-only packs must use the “L” ID. You may duplicate ID “L” on multiple packs.
• Shared packs must use the “S” ID. You may duplicate ID “S” on multiple packs, but only one
shared pack may talk at a time.
• When using “S” IDs, the last full-duplex ID (“09”) cannot be used in the Roam mode.

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c. Access the Roaming Menu. Select a Roaming menu selection for each pack.
• r1 (Auto) – Allows the pack to automatically log in to the Master or Submaster depending
on the environment and the pack’s proximity to either.
• r2 (Manual) – Allows the user to manually select whether the pack is logged in to the
Master or Submaster. Press the MODE button to select Master or Submaster.
• r3 (Master) – When selected, the pack is locked into only logging into the Master.
• r4 (Submaster) – When selected, the pack is locked into only logging into the Submaster.
d. Confirm pack’s Security Code. Packs must use the same security code to work together as a
system.
IF OPERATING THE PACK IN STANDARD MODE
b. Select an ID. Select a unique ID number.
• Standard Mode ID options: 00 (Master), 01–09 (Full Duplex), S (Shared), L (Listen).
• One pack must always use the “00” ID and serve as the Master for proper system function.
An “M” indicator designates the Master pack on its LCD.
• Listen-only packs must use the “L” ID. You may duplicate ID “L” on multiple packs.
• Shared packs must use the “S” ID. You may duplicate ID “S” on multiple packs, but only one
shared pack may talk at a time.
• When using “S” IDs, the last full-duplex ID (“09”) cannot be used in the Standard mode.
c. Confirm pack’s Security Code. Packs must use the same security code to work together as a
system.
CONNECTING A TWO-WAY RADIO
1. Ensure that two-way radios and CrewPlex packs are powered o.
2. Connect the CrewPlex two-way radio adapter (CRC-2WAY-IO) to the Master pack’s dual-mini
headset port. (The adapter connector prong marked with “R” should be inserted into the pack’s
“RPT” port.)
3. Use the appropriate two-way radio cable to connect the adapter to the two-way radio.
4. If desired, connect a secondary CrewPlex two-way radio adapter to each additional pack needing
remote push-to-talk ability. (Users with a secondary adapter may push to talk from the adapter
instead of the pack.)
5. Power on the two-way radios and packs.
6. Set the volume of the two-way radio connected to the Master pack to 50%. (You may adjust its
volume further if desired once setup is complete.)
7. Enable TALK on the Master pack. This ensures that audio from the two-way radio will be heard in
the CrewPlex system when the Master pack does not have its two-way push-to-talk (PTT) button
engaged.
8. Press and hold a pack’s two-way push-to-talk button to talk to all packs (on the active channel)
and to all connected two-way radios.

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BATTERY
The rechargeable Lithium-ion battery is installed in the device at shipment. To recharge the battery,
plug the USB charging cable into the device USB port. The LED in the top right corner of the
device will illuminate solid red while the battery is charging and will turn o once the battery is fully
charged. The battery charge time is approximately 3 hours from empty (USB port connection). The
pack may be used while charging, but doing so may lengthen battery charge time.
OPERATION
• LED Modes - LED is blue and double blinks when logged in and
single blinks when logged out. LED is red when battery charging is in
progress. LED turns o when charging is complete.
• Lock - To toggle between Lock and Unlock, press and hold the TALK
and MODE buttons simultaneously for three (3) seconds. A lock
icon appears on the LCD when locked. This function locks the TALK
and MODE buttons, but it does not lock headset volume control, the
POWER button, or the PTT button.
• Volume Up and Down - Use the +and −buttons to control the
headset volume. “Volume” and a stair-step indicator display the
pack’s current volume setting on the LCD. You will hear a beep in
your connected headset when the volume is changed. You will hear a
dierent, higher-pitched beep when maximum volume is reached.
• Talk - Use the TALK button to enable or disable talk for the device.
The talk indicator appears on the LCD when enabled.
» Latch talking is enabled/disabled with a single, short press of the
button.
» Momentary talking is enabled by pressing and holding the button
for two (2) seconds or longer; talk will remain on until the button
is released.
» Shared users (“S” ID) can enable talk for their device with the
momentary talking function (press and hold while talking). Only
one Shared user can talk at a time.
• Mode - Short-press the MODE button to toggle between the
channels enabled on the pack. Long-press the MODE button to
access the menu.
Figure 1: Lock Indicator
Figure 2: Volume Indicator
Figure 3: Talk Indicator
Figure 5: Channel Setting

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• Two-Way Push-to-Talk - If you have a two-way radio connected to
the Master pack, you may use this function to activate talk for the
two-way radio from any pack on the system. Press and hold the Talk
button to enable Push-to-Talk. Two vertical lines will appear next to
the volume to indicate Push-to-Talk is activated.
• Out of Range Tones - The user will hear three quick tones when the
pack logs out of the system, and they will hear two quick tones when
it logs in.
OPERATING MULTIPLE MR10-900 SYSTEMS IN ONE LOCATION
Each separate MR10-900 system should use the same Group and Security Code for all packs in that
system. CrewPlex recommends that systems operating in proximity to one another set their Groups
to be at least ten (10) values apart. For example, if one system is using Group 03, another system
nearby should use Group 13.
Figure 4: Two-Way and
PTT Indicators

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MENU SETTINGS
The following table lists adjustable settings and options. To adjust these settings from the pack menu,
follow the instructions below.
1. To access the menu, press and hold the MODE button for three (3) seconds, until the screen
changes to show the first setting in the menu.
2. Short-press the MODE button to scroll through the settings: Group, ID, Side Tone, Mic Gain,
Channel A, Channel B, Security Code, and Roaming.
3. While viewing each setting, you may scroll through its options using the VOLUME +/−buttons;
then, continue to the next menu item by pressing the MODE button. See the table below for the
available options under each setting.
4. Once you have finished your changes, press and hold MODE to save your selections and exit the
menu.
Setting Default Options Description
Group N/A 00–51 Coordinates operation for packs communicating as a
system. Packs must have the same group number to
communicate.
ID N/A 00
01
01-08
02-09
01–09
S
L
Master ID
Submaster ID (only in Roam Mode)
Repeater* Mode ID options
Roam Mode ID options
Standard Mode ID options
Shared
Listen-Only
Side Tone S2 SF–S5 Allows you to hear yourself while talking. Louder
environments may require you to enable your side tone.
Mic Gain C1 C1–C8 Determines the headset microphone audio level being
sent from the microphone pre amp.
Channel A On On, O
Channel B On On, O (Not available in Roam Mode.)
Security Code
(“SEC Code”)
0000 4-digit alpha-
numeric code
Limits access to a system. Packs must use the same
security code to work together as a system.
Roaming Auto R1 (Auto)
R2 (Manual)
R3 (Master)
R4 (Submaster)
Determines whether a pack can switch between the
Master and Submaster packs.
*Repeater Mode is the default setting. See page 9 for information about changing mode.

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RECOMMENDED SETTINGS BY HEADSET
The following table provides recommended MR10-900 settings for several common headset models.
TECH MENU - MODE SETTING CHANGE
The mode can be changed between three settings for dierent functionality:
• Repeater* Mode connects users working beyond line of sight from one another by locating the
Master pack in a prominent central location.
• Roam Mode connects users working beyond line of sight as well as extends the range of the MR10
system by strategically locating the Master and Submaster packs.
• Standard Mode connects users where line of sight between users is possible.
Follow the instructions below to change the mode.
1. Access the pack’s Tech Menu by simultaneously pressing and holding the VOLUME + button and
MODE buttons until <Tech Menu> displays.
2. Scroll between the “RP,” “RM,” and “ST” options using the VOLUME +/−buttons.
3. Press and hold MODE to save your selections and exit the Tech Menu. The pack will automatically
power o.
4. Press and hold the POWER button for two (2) seconds; the pack will power back on and will be
using the newly selected mode.
*Repeater Mode is the default setting. See page 9 for information about changing mode.
Headset Model Recommended Setting
Mic Gain
CrewPlex Hard Hat C6
CrewPlex Hard Hat LITE C4
CrewPlex Hard Hat Clip-On C6
CrewPlex Hard Hat Clip-On LITE C2
SmartBoom LITE and PRO C1

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DEVICE SPECIFICATIONS
Specification* CP-MR10-900
Radio Frequency Type ISM 902–928 MHz
Radio Interface GFSK with FHSS
Voice Codec 16 bit / 8 kHz
Maximum Eective Isotropically Radiated Power (EIRP) 320 mW
Rx Sensitivity -95 dBm
Frequency Channels 52
Frequency Response 50 Hz ~ 4 kHz
Encryption AES 128
Channel Spacing 0.5 MHz
Number of Talk Channels 2
Maximum Full-Duplex Users 10
Number of Shared Users Unlimited
Number of Listen Only Users Unlimited
Antenna Internal Type Helical Antenna
Battery Type Rechargeable 3.7 V; 1,100 mA Li-ion
field-replaceable battery
Battery Life Approx. 8 hours
Battery Charging Time 3 hours (USB cable)
Charge Type USB Micro; 5 V; 1–2 A
Dimension (with Belt Clip) 2.72 in. (H) × 3.94 in. (W) × 1.26 in. (D)
[69 mm (H) × 100 mm (W) × 32 mm (D)]
Weight 3.46 oz. (98 g)
Display LCD
* Notice about Specifications: While CrewPlex makes every attempt to maintain the accuracy of the information contained in its
product manuals, that information is subject to change without notice. Performance specifications included in this manual are design-
centered specifications and are included for customer guidance and to facilitate system installation. Actual operating performance
may vary. Manufacturer reserves the right to change specifications to reflect latest changes in technology and improvements at any
time without notice.

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PRODUCT CARE AND MAINTENANCE
Clean using a soft, damp cloth.
CAUTION: Do not use cleaners that contain solvents. Keep liquid and foreign objects out of the device openings. If the product is
exposed to rain, gently wipe o all surfaces, cables, and cable connections as soon as possible and allow unit to dry before storing.
PRODUCT SUPPORT
CrewPlex oers technical support via phone and email from 07:00 to 19:00 Central Time
(UTC−06:00), Monday through Friday.
+1.334.321.1400
[e-mail]
Visit www.crewplex.com for product support references and helpful documentation.
RETURNING EQUIPMENT FOR REPAIR OR MAINTENANCE
All questions and/or requests for a Return Authorization Number should be directed to the Customer
Service Department ([e-mail]). Do not return any equipment directly to the
factory without first obtaining a Return Material Authorization (RMA) Number. Obtaining a Return
Material Authorization Number will ensure that your equipment is handled promptly.
All shipments of CrewPlex products should be made via UPS, or the best available shipper, prepaid
and insured. The equipment should be shipped in the original packing carton; if that is not available,
use any suitable container that is rigid and of adequate size to surround the equipment with at least
four inches of shock-absorbing material. All shipments should be sent to the following address and
must include a Return Material Authorization Number:
CrewPlex Customer Service Department
Attn: Return Material Authorization #
205 Technology Parkway
Auburn, AL USA 36830-0500

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LICENSE INFORMATION
CREWPLEX MR10-900 FCC COMPLIANCE STATEMENT
00004394 (FCCID: YJH-GM-900MSS)
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio
or television reception, which can be determined by turning the equipment o and on, the user is
encouraged to try to correct the interference by one of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit dierent from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
CAUTION
Modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.
FCC Compliance Information: This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may cause undesired
operation.
IMPORTANT NOTE
FCC RF Radiation Exposure Statement: This equipment complies with FCC RF radiation exposure
limits set forth for an uncontrolled environment.
The antennas used for this transmitter must be installed to provide a separation distance of at least 5
mm from all persons and must not be co-located or operating in conjunction with any other antenna
or transmitter.
CANADIAN COMPLIANCE STATEMENT
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science
and Economic Development Canada’s licence-exempt RSS(s). (Specifically RSS 247 Issue 2 (2017-02)
and RSS-GEN Issue 5 (2019-03). Operation is subject to the following two conditions:
• (1) This device may not cause interference.
• (2) This device must accept any interference, including interference that may cause undesired
operation of the device.

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CREWPLEX WARRANTY STATEMENT
CrewPlex products are warranted to be free from defects in materials and workmanship for a period
of two years from the date of sale to the end user, under the following conditions:
• First year of warranty included with purchase.
• Second year of warranty requires product registration.
All headsets and accessories (including CrewPlex-branded batteries) carry a one-year warranty.
The sole obligation of CrewPlex, LLC during the warranty period is to provide, without charge, parts
and labor necessary to remedy covered defects appearing in products returned prepaid to CrewPlex,
LLC. This warranty does not cover any defect, malfunction, or failure caused by circumstances
beyond the control of CrewPlex, LLC, including but not limited to negligent operation, abuse,
accident, failure to follow instructions in the Operating Manual, defective or improper associated
equipment, attempts at modification and/or repair not authorized by CrewPlex, LLC, and shipping
damage. Products with their serial numbers removed or eaced are not covered by this warranty.
This limited warranty is the sole and exclusive express warranty given with respect to CrewPlex,
LLC products. It is the responsibility of the user to determine before purchase that this product
is suitable for the user’s intended purpose. ANY AND ALL IMPLIED WARRANTIES, INCLUDING
THE IMPLIED WARRANTY OF MERCHANTABILITY, ARE LIMITED TO THE DURATION OF THIS
EXPRESS LIMITED WARRANTY. NEITHER CREWPLEX, LLC NOR ANY AUTHORIZED RESELLER
WHO SELLS CREWPLEX PROFESSIONAL INTERCOM PRODUCTS IS LIABLE FOR INCIDENTAL OR
CONSEQUENTIAL DAMAGES OF ANY KIND.
PARTS LIMITED WARRANTY
Replacement parts for CrewPlex, LLC products are warranted to be free from defects in materials and
workmanship for 120 days from the date of sale to the end user.
This warranty does not cover any defect, malfunction, or failure caused by circumstances beyond the
control of CrewPlex, LLC, including but not limited to negligent operation, abuse, accident, failure to
follow instructions in the Operating Manual, defective or improper associated equipment, attempts
at modification and/or repair not authorized by CrewPlex, LLC, and shipping damage. Any damage
done to a replacement part during its installation voids the warranty of the replacement part.
This limited warranty is the sole and exclusive express warranty given with respect to CrewPlex,
LLC products. It is the responsibility of the user to determine before purchase that this product
is suitable for the user’s intended purpose. ANY AND ALL IMPLIED WARRANTIES, INCLUDING
THE IMPLIED WARRANTY OF MERCHANTABILITY, ARE LIMITED TO THE DURATION OF THIS
EXPRESS LIMITED WARRANTY. NEITHER CREWPLEX, LLC NOR ANY AUTHORIZED RESELLER
WHO SELLS CREWPLEX PROFESSIONAL INTERCOM PRODUCTS IS LIABLE FOR INCIDENTAL OR
CONSEQUENTIAL DAMAGES OF ANY KIND.