Lab-T GrandCom-900 User manual

Copyright ⓒ2021. Lab-T, Inc.
User Manual

Ver.10715DCCI
Maytel Co., Ltd.
USER'S MANUALFOR
GrandCom
TheMostOptimizedWirelessIntercomSolution
forHands-freeSimultaneous Communication
between Multiple People
Model;GC-900

1. General Information
page 2 DCX-P400 User’s Manual
1.1 Introduction
 
1.2 Main Feature



GrandCom is awirelessintercomavailableof simultaneous
communicationbetween maximum of 10 people and supports9 people
talkingsimultaneously and unlimitednumber of listeners.
Equipped with 4 operationmodes to selectthe most optimizedmode
in the eld depending on the talk distancein the eld environment.
Crystalclear sound qualitywith perfectnoise cancellationfunction.
Thisis the best solution with a full-duplexcommunicationapproach
thatallowsyouto use both hands freelyand maximizesuser
conveniencewithout the need to operatethe deviceduring
communication.
Realize9xedusers +Anyone out of unlimited participantsdirectly
talkingtogether with hands-free simultaneously while restmembers
arelistening.
Support4professionaloperating modes and directly selectthe
optimized mode accordingto the environmentin the eld
to ensuremaximum talk performance.
Worldwidecompatible 900MHzfrequencyrange.
Crystalclear sound quality,loud enough audio outputand super
dynamic noise cancellation morethan 95dB.
Longenough talk distance through4professionaloperating modes
thatcan be directly selected in the eld.
Completelysecuredtalk throughindividualPIN encryptionsettings for
each groupdirectly by the user.
IP54performance,including strongand ruggedmechanism.
Convenient drop-inchargingand USB chargingsystem.

2. Controls and Indicators
page 4 DCX-P400 User’s Manual
TALK
Button
MODE
Button
Headset Jack
LCD
Antenna
Down
Button
UP
Button
Power
Button
2.1 GC-900
USB Jack
(only, Firmware upgrade)
LABEL
The Label can be seen
when the battery cover
and battery are removed.

page 5 DCX-P400 User’s Manual
Power Button
Press and hold the Power button for a second to turn the device
power On/O
MODE Button
Select Group number, ID number, Side Tone On/O,
Microphone sensitivity Level, Operation mode selection and Wireless
alarm
Up Button
Increase Volume Level, Channel number, and ID number etc. in each
mode
Down Button
Decrease Volume Level, Channel number, and ID number etc. in each
mode
TALK Button
Talk and Mute On/O
LCD
Indicate current status and setting
MIC Jack
Microphone contact
USB Jack

Type-C USB portforrmwareupgrade (No USB charging function)

2.2 LCD
page 6 DCX-P400 User’s Manual
Signal Strength
Volume
Battery Status
ID
Group
Current Setting
TALK State
Set as Master
Operation Mode (9+Any one mode)
Operation Mode (Relay mode)
Operation Mode (Starcast mode)
I D
GRP
VOL ST RP
RL
RM
VOL
I D
GRP
ST
RL
RP
Operation Mode (Roaming mode)
RM

3. Four Mode
page 7 DCX-P400 User’s Manual
3.1 [ST] 9+any one Mode
9 xed user + any one out of the participants talking together
simultaneously
3.1.1 Operation Mode
ID of the device is assigned from 00~08, A (Any one), L (Listen Only), 09.
Refer to Table 1 below
Table 1 Operation Mode
ID Master
/Slave ID Status Explanation
00
01
02
03
04
05
06
07
08
A
L
09
Master
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Fixed TX/RX of ID 0
Fixed TX/RX of ID 1
Fixed TX/RX of ID 2
Fixed TX/RX of ID 3
Fixed TX/RX of ID 4
Fixed TX/RX of ID 5
Fixed TX/RX of ID 6
Fixed TX/RX of ID 7
Fixed TX/RX of ID 8
ID 9 ; Shared
Listen Only
Fixed TX/RX of ID 9
Must exist in each group
Full duplex simultaneous communication
between the members
Full duplex simultaneous communication
between the members
Full duplex simultaneous communication
between the members
Full duplex simultaneous communication
between the members
Full duplex simultaneous communication
between the members
Full duplex simultaneous communication
between the members
Full duplex simultaneous communication
between the members
Full duplex simultaneous communication
between the members
Unlimited, Can listen to other members’ conversation,
Can talk by pressing the Talk button
Unlimited, Can listen to other members’ conversation
Full duplex simultaneous communication between the
members, Should not use A when setting the device

page 8 DCX-P400 User’s Manual
3.2 [RM] Roaming Mode
Talking distance expansion thru mutual relay between Master and
Submaster
3.2.1 Operation Mode
ID of the device is assigned from 00~08, A (Any one), L (Listen Only), 09.
Refer to Table 2 below
Table 2 Operation Mode
ID Master
/Slave ID Status Explanation
00
01
02
03
04
05
06
07
08
A
L
09
Main
Master
Sub Master
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Fixed TX/RX of ID 0
Fixed TX/RX of ID 1
Fixed TX/RX of ID 2
Fixed TX/RX of ID 3
Fixed TX/RX of ID 4
Fixed TX/RX of ID 5
Fixed TX/RX of ID 6
Fixed TX/RX of ID 7
Fixed TX/RX of ID 8
ID9 ; Shared
Listen Only
Fixed TX/RX of ID 9
Must exist in each group
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Unlimited, Can listen to other members’ conversation,
Can talk by pressing the Talk button
Unlimited, Can listen to other members’ conversation
Full duplex simultaneous communication between the
members, Should not use A when setting the device

page 9 DCX-P400 User’s Manual
3.3 [RP] Repeater Mode
Ideally located Master unit relays each user’s talking to minimize the
impact of surrounding obstacles
3.3.1 Operation Mode
ID of the device is assigned from 00~07, A (Any one), L (Listen Only), 08.
Refer to Table 3 below
Table 3 Operation Mode
ID Master
/Slave ID Status Explanation
00
01
02
03
04
05
06
07
A
L
08
Master
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Fixed TX/RX of ID 0
Fixed TX/RX of ID 1
Fixed TX/RX of ID 2
Fixed TX/RX of ID 3
Fixed TX/RX of ID 4
Fixed TX/RX of ID 5
Fixed TX/RX of ID 6
Fixed TX/RX of ID 7
ID8 ; Shared
Listen Only
Fixed TX/RX of ID 8
Must exist in each group
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Unlimited, Can listen to other members’ conversation,
Can talk by pressing the Talk button
Unlimited, Can listen to other members’ conversation
Full duplex simultaneous communication between
the members, Should not use A when setting the
device

page 10 DCX-P400 User’s Manual
3.4 [RL] Relay Mode
Long-distance relay via two-way radio for intra-group talking
3.4.1 Operation Mode
ID of the device is assigned from 00~08, A (Any one), L (Listen Only), 09.
Refer to Table 4 below
Table 4 Operation Mode
ID Master
/Slave ID Status Explanation
00
01
02
03
04
05
06
07
08
A
L
09
Master
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Fixed TX/RX of ID 0
Fixed TX/RX of ID 1
Fixed TX/RX of ID 2
Fixed TX/RX of ID 3
Fixed TX/RX of ID 4
Fixed TX/RX of ID 5
Fixed TX/RX of ID 6
Fixed TX/RX of ID 7
Fixed TX/RX of ID 8
ID9 ; Shared
Listen Only
Fixed TX/RX of ID 9
Must exist in each group, Connected with 2way radio
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Full duplex simultaneous communication between
the members
Unlimited, Can listen to other members’ conversation,
Can talk by pressing the Talk button
Unlimited, Can listen to other members’ conversation
Full duplex simultaneous communication between
the members, Should not use A when setting the
device