Profoto RMI3 Use and care manual
Profoto RMI3
Integration Manual
RMI3
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This document and its contentsshall not be reproduced ortransferred in any form without
express prior permission.All rights reserved.
© ProfotoAB 2019
Specifications are subject to change without prior notice.
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Thank you for choosing Profoto
Thank you for giving us your confidence by investing in the
Profoto RMI3.For more than five decades we have sought after
the perfect light. What drives us is our conviction that we can
offer even better tools for the most demanding photographers.
Before our products are shipped we have them pass an
extensive and strict testing program.We make sure that each
individual product meets our high demands on performance,
quality,and safety.For this reason our flash equipment is widely
used in rental studios in Paris,London,NewYork,andTokyo and
is also the most rented flash all over the world.
Some photographers can tell just from seeing a picture,
if Profoto equipment has been used
Professionalphotographers aroundthe worldhavecome tovalue
Profoto’s expertise in lighting and light-shaping. Our extensive
range of Light Shaping Tools offers photographers unlimited
possibilities for creating and adjusting their own light.
Every single reflector and accessory creates its special light and
the unique Profoto focusing system offers you the possibility to
create your own light with only a few different reflectors.
Enjoy your Profoto product!
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NOTE ABOUT RF!
This equipment makes use of the radio spectrum and emits radio frequency energy. Proper care
should be taken when the device is integrated in systems. Make sure that all specifications within
this document are followed, especially those concerning operating temperature and supply voltage
range. Make sure the device is operated according to local regulations. The frequency spectrum
this device is using is shared with other users. Interference can not be ruled out.
SAFETY PRECAUTIONS!
Do not attempt to operate the equipment before studying the instruction manual and the accompanying
safety instructions.Failure to do so may result in serious injuries.
Make sure that Profoto Safety Instructions is always accompanied the equipment!
Profoto products are intended for professional use!
Do not place or use the equipment where it can be exposed to moisture, extreme electro-
magnetic fields, or in areas with flammable gases or dust!
Do not expose the equipment to rapid temperature changes in humidity conditions as this could lead to
water condensation in the unit.
Equipment must only be serviced by authorized and competent service personnel!
Any modifications will break the modular certification and require the module to be re-certified.
FINAL DISPOSAL
This equipment contains electrical and electronic components that could be harmful to the
environment.
Equipment may be returned to Profoto distributors free of charge for recycling according to WEEE.
Follow local legal requirements for separate disposal of waste,for instanceWEEE directive for electrical
and electronic equipment on the European market,when the product ‘s life has ended!
Safety instructions
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Table of Contents
Introduction ......................................................................................................6
General Description ..................................................................................................6
System Diagram..........................................................................................6
Hardware Description ...............................................................................................7
Mechanical Characteristics..........................................................................7
Electrical Characteristics .............................................................................8
Pin Out ...........................................................................................8
Recommended Operating Conditions ..............................................8
Interface Description....................................................................................9
UART Serial Interface......................................................................9
Reset Interface ...............................................................................9
RF Characteristics......................................................................................10
Important Integration Notes ....................................................................................10
Mechanical Integration ..............................................................................10
Electrical Integration..................................................................................12
Antenna Integration ...................................................................................12
Regulatory Information .......................................................................................... 13
Certification...............................................................................................13
Europe..........................................................................................13
United States and Canada.............................................................13
Japan...........................................................................................15
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Introduction
Profoto’s RMI3 is the base for our versatile modular communication platform, used in
products such asthe flash generator Pro-10and the MonolightD2.It utilzes communication
in the 2.4GHz ISM- band and has an impressive performance with a range of up to 300
meters (free line of sight in open space )1.
General Description
The RMI3 module is powered by an 8-bit micro processor with a radio transceiver from
Texas and features a complete feature set for wireless interaction withthe ProfotoAir range
of professional studio equipment. The module has a 3V UART for interaction with a wide
range of devices including computers and other microcontrollers.
System Diagram
1 Actual range will vary due to site layout, surrounding materials and other
radio transmissions.
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Hardware Description
Mechanical Characteristics
Dimensions
46x 18 x 10 mm +/- 1mm [Length,Width, Height]
Weight:approx 10g
Product Image
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Mechanical Drawing
Electrical Characteristics
PINOUT
PIN Function
1 GND
2 VCC (Transmit)
3 Sync O.C.
4 Test_0
5 Trig
6 N.C.
7 Sync
8 COMTX
9 Reset
10 Test_2
11 Test_3
12 Test_1
13 TTL
14 RMTE
15 COM RX
16 +3V CPU
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Recommended Operating Conditions
Parameter Min Max Unit
DC Supply 2.7 3.5 V
Current 0.18 A
Temperature -10 +55 °C
Humidity 0 90 % rel n.c
Interface Description
The interface to the host system is implemented as a 16 pin male connector.
The part used on the RMI3 module is anAMP Micro-MaTch (P/N: 8-215464-6).
The recommended matching female connector is P/N: 8-215079-6. It is recommended
to connect the module with a female header mounted in through holes. This allows for
optimum space saving and leaves the antenna connector easily accessible.
UART Serial Interface
The UART is using pins 1,8 and 15.To connect to an RS232 line you must use aTTL level
converter (a dongle from B&BElectronics is recommended) from 3.3Vor use the ProfotoAir
USBdongle which mateswith anRMI3 moduleand provides aUSB interfaceto acomputer.
Serial characteristics:38400. 8,N,1 (no flow control)
NOTE!
Connecting the module to an RS232 line without a line level converter may
damage the module.
For a list of available commands please refer to the RUF documentation.
Reset Interface
The following conditions will lead to a reset on the Promote RMI3 module:
• Power on reset
• Low voltage (Brown Out) detected from internal supervisory circuit
• Reset by Software
• External reset through reset pin
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RF Characteristics
Parameter Min Typ. Max Unit
Frequency range 2404 2480 MHz
Frequency stability -25 +25 kHz
Output power EU/US 8.7 8.9 9.3 dBm
Output power Japan 5.4 6.2 8.7 mW
Output power USA/Canada 9.2 9.8 11.2 dBm
Channel list
Channel Air Ch # Frequency Unit Comment
1 1 2403.999 MHz
2 9 2406.998 MHz
3 2 2411.997 MHz
4 - 2414.996 MHz Only FHSS
5 3 2416.996 MHz
6 4 2421.994 MHz
7 5 2426.993 MHz
810 2429.992 MHz
911 2432.992 MHz
10 12 2435.991 MHz
11 13 2438.990 MHz
12 -2441.990 MHz Only FHSS
13 62446.988 MHz
14 14 2451.321 MHz
15 72453.987 MHz
16 15 2456.653 MHz
17 16 2459.652 MHz
18 17 2462.318 MHz
19 18 2465.317 MHz
20 19 2468.316 MHz
21 20 2471.316 MHz
22 -2474.315 MHz Reserved
23 82479.314 MHz
Note:Channel 4, 12 is only used for frequency hopping.Channel 22 is not currently used.
Table of contents
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