Indemnis Nexus i2 PRS User manual

11 NEXUS | EQUIPMENT OPERATIONS GUIDE - V1.5
EQUIPMENT
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OPERATIONS GUIDE
MANUAL FOR THE NEXUS INSPIRE 2 PARACHUTE RECOVERY SYSTEM ( Nexus i2 PRS )

22 NEXUS | EQUIPMENT OPERATIONS GUIDE - V1.5
IN-DEM-NIS; Noun from Latin: Indemnitasm Indemni(s)
uninjured; suffering no damage or loss; suffering no loss of wealth or property

33 NEXUS | EQUIPMENT OPERATIONS GUIDE - V1.5
DISCLAIMER
|
This Parachute Manual (PM) satises the Requirements of ASTM F3322-18, Section 3.1.30.
This document and the information contained herein are proprietary and commercially
condential to Indemnis, Inc. Any use, disclosure, reproduction, distribution or other use
of this manual by an individual or entity other than the intended recipient is prohibited.
This is a living document and is available electronically at indemnis.com/manuals.

44 NEXUS | EQUIPMENT OPERATIONS GUIDE - V1.5
The Indemnis Nexus i2 Parachute Recovery System (Nexus i2 PRS) for the DJI Inspire 2 is an advanced ballistic safety
system designed to protect life and property on the ground and enable advanced ight operations by reducing the drones
level of kinetic energy in the event of a failure. This manual explains installation instructions and how the Nexus i2 PRS
works and how to properly operate the system both on the ground and in the air. The Nexus i2 PRS should only be used by
trained pilots with authorization to y near or over people.

55 NEXUS | EQUIPMENT OPERATIONS GUIDE - V1.5
YOUR GUIDE TO THIS GUIDE
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DISCLAIMER
Safety Precautions ................................................................... 06
Operational and Environmental Limitations ........................ 07
Approved Payloads ................................................................... 07
Nexus i2 PRS Components ....................................................... 08
Charging The Nexus ................................................................. 09
Installation Instructions ........................................................ 10
Understanding The LED Light Ring .......................................... 16
Checklists .................................................................................... 18
Ground Operation Procedures ............................................... 19
Flight Operation Procedures .................................................. 20
Nexus i2 PRS Remote (MTD) .................................................... 22
Post-Flight Inspection Procedures ........................................ 24
Maintenance and Servicing Instructions ............................. 25
How to Contact Indemnis ........................................................ 25
Troubleshooting & Icon Guide ................................................ 26

66 NEXUS | EQUIPMENT OPERATIONS GUIDE - V1.5
SAFETY PRECAUTIONS
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PAY ATTENTION
Using the Nexus i2 PRS does not eliminate all risk associated with operating a drone near or over people. Pilots should ensure they are
operating in accordance with the rules and regulations of the Civil Aviation Authority (CAA) of the operating location.
The Nexus i2 PRS is designed to deploy in less than 14 milliseconds by the releasing compressed gas into a tube and launching a parachute
ballistically at over 140 MPH. WARNING: Do not lean against, press, drop, or stand directly in front of the red cap of the system, or point the
system in any direction that may cause harm, injury, or damage to life or property in the event of a ground deployment.** Operators shall
disarm and turn the system off immediately after landing BEFORE handling the aircraft.
**While the Nexus i2 PRS has multiple electronic and software-based safeguards to prevent the possibility of an accidental or inadvertent
deployment on the ground, it should be noted that the Nexus i2 PRS deploys from the rear of the aircraft where the RED CAP is located. It is
recommended that the operator maintains a clear area of 8 meters from the red cap direction of re when the system is powered on.
DIRECTION OF LAUNCH

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OPERATIONAL AND ENVIRONMENTAL
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LIMITATIONS
Operational Considerations
a) The average measured descent rate of the Inspire 2 with a Nexus i2 PRS at maximum takeoff weight is 3.23 meters per second (7.25 MPH)
b) Minimum Operating Altitude with zero wind – 36 meters (118 FT)
Environmental Considerations
a) Temperature -4°to 104°F (-20°to 40°C)
b) Max Wind Speed Resistance 19.4 Kt (22.3 MPH) – Note For the purpose of operating over people, Max Wind Speed Resistance
shall not exceed 16.3 Kt (18.75 MPH)
c) The Nexus i2 PRS may be operated in light rain or snow
d) Operator should never exceed aircraft manufacturer’s environmental operating conditions and specications
APPROVED
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PAYLOADS
The Nexus i2 PRS is approved to operate the following payloads:
ZENMUSE X4S; ZENMUSE X5S; ZENMUSE X7; or any securely
mounted payload to the gimbal mount up to 630 grams.
Use of the included DJI Inspire 2 Gimbal Protection Kit is
required for the installation of the Indemnis Nexus i2 PRS.

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SYSTEM COMPONENTS
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WHAT’S IN THE CASE
NEXUS HOUSINGSTATUS LED
ARMING BUTTON
USB CONNECTOR
BRACKET
DEPLOYMENT TUBE
LEAD LINE / SHOCK CORD
PARACHUTE BUNDLE CAP
POWER BUTTON
ANTENNA
A: Nexus System
B: Alignment Sticker
C: Automatic Triggering System (ATS) Housing
D: Flight Termination System (FTS)
E: Manual Triggering Device (MTD)
F: Charging Cable
G: Gimbal Protection Kit + Hardware Bag
H: Indemnis Screwdriver
I: Velcro Strap for Cable(s)
Note:The antenna on the Nexus i2 PRS
housing is glued in place and users should
NOT attempt to adjust or remove it.
A B C
D E F
GH I

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HOW TO CHARGE YOUR NEXUS
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CHARGING
Charging your Nexus i2 PRS
The Nexus i2 PRS must be charged before use. It uses a USB-C cable to charge the unit and can be charged with any standard USB charger.
The battery charge status can be indicated by pressing the power button once. A fully charged battery is indicated by a fully lit green LED ring.
The battery percentage can also be viewed on the Nexus MTD, the Nexus i2 PRS will not allow for operation below 33% battery life.
Note - The Nexus i2 PRS harvests power from the aircraft which will keep the battery fully charged, as long as the Nexus i2 PRS is
plugged in and the Inspire 2 turned on. If the Nexus i2 PRS is not fully charged users may experience a long wait once plugged into the
Inspire 2, as the unit is required to charge before the Nexus i2 PRS will allow the user to Pre-Arm the unit.
USB charging cable inserted into the USB port Power Button (left) and red Arming Button (right)

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INSTALLATION
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GIMBAL PROTECTION AND ATS
Attaching the Nexus i2 Automatic
Triggering Device (ATS) and
Gimbal Protection Kit
(ONE-TIME INSTALL):
The Nexus i2 ATS is attached to the bottom of the aircraft.
Once the gimbal protection kit is installed, you can install the ATS.
1) Remove the ATS Housing and gimbal protection set from the case. For
ease of installation, place the aircraft in travel mode so that the arms are
parallel with the ground plane. Flip the aircraft over gently and rest the
aircraft on the propeller mounts so that the aircraft nose is pointed away
from you.
2) Place the buckle xing base, to the raised part in the gimbal vibration
absorbing board’s mounting slot and ensure that it is locked rmly.
3) Tighten the two screws of the cable buckle with a T8 screwdriver and
ensure that the buckle is placed rmly to the buckle’s xing base and tighten
in place.
4) Unscrew the four (4) M2.5 screws shown. These screws will not be used
for the installation of the ATS, but should be saved in case the Nexus PRS is
removed from the aircraft.
5) Place the ATS Housing on the bottom of the Inspire 2 so that the four (4)
screw holes align and the directional arrow on the ATS housing points in the
direction of the front of the aircraft. **The Flight termination System (FTS)
should be on your right side (aircraft left) and the wiring harness (USB Cable)
should be on your left side (aircraft right).
1
2
3
4

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6) Using the two (2) screws provided in the gimbal protection set, align the
rst gimbal protection wire the screw hole, insert the screw, and tighten it down.
Repeat for the other side. *You may have to hold the wires in place during the
last few turns of the screw. The screw heads should sandwich the wire against
the ATS housing. The shoulder of the screws should not be pinching the ATS
housing against the body of the aircraft.
7) There are two screws included with the ATS housing. The two (2) included
M2.5 screws are for the remaining two (2) back mounting holes in the ATS
housing, screw down until snug.
8) The aircraft can now be ipped over. There should be two cables loosely
hanging from the ATS housing on the right side: (1) A right angle USB-A cable and
(2) the USB-C connector that will plug into the Nexus i2 PRS when it is installed.
The Flight Termination System will be loosely hanging from the left side. *In the
event that the Nexus i2 PRS is not being own, the aircraft can still be own with
the included hook and loop cable retention strap that can control the unplugged
USB-C cable (as shown).
9) Remove the USB-A dust cover on the right side of the aircraft and plug the
USB-A cable into the USB port of the aircraft and ip the selector switch on from
the computer icon to the mobile icon.
You are now ready to install your Flight Termination System.
GIMBAL PROTECTION AND ATS
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INSTALLATION
6
7
8
9
WATCH THE INSTALL VIDEOS:
1) Gimbal Protection: vimeo.com/363939203/77ea94e853
2) ATS Install: vimeo.com/363938907/decd157193

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INSTALLATION
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FLIGHT TERMINATION SYSTEM
1) Remove the DJI Inspire 2 nose cap by unscrewing the four (4) nose cap
screws using the 2.5 mm hex bit included with the hardware bag. *Do not
misplace these screws, as they will be reused when reattaching the nose cap.
2) Locate the 8-Pin and 9-Pin ESC control wire bundles at the aircraft front.
3) Squeeze the GH connector tabs and lightly pull away from the aircraft to
unplug both of these wiring harnesses.
4) The FTS is loosely hanging from the ATS housing on the left side of
the aircraft.
5) Plug the two (2) connectors from the Inspire 2, into the FTS. You’ll notice
that one of these connectors is an 8 pin while the other one is 9 pin, you cannot
reverse them.
6) Take the 8-pin and 9-pin wiring harness from the FTS and plug them into the
8-pin and 9-pin aircraft ports, respectively.
Installing the Nexus i2 Flight Termination
System (FTS) (ONE-TIME INSTALL):
Now that you have installed the Gimbal Protection Set and the ATS on the
bottom of the Inspire 2, it is time to install the Flight
Termination System.
1
2
4
5
6

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FLIGHT TERMINATION SYSTEM
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INSTALLATION
7) Remove the double-sided tape protector on the back of the FTS board and
place the FTS on the left side of the nose of the aircraft. Place the FTS as low as
you can, to ensure that there is no strain on the wires.
8) Replace the nose cap of the aircraft and double check that no
wires are pinched.
9) Using the original 4 screws that were removed in step one,
secure the nose cone.
The FTS is now installed.
7
8
9
WATCH THE INSTALL VIDEO AT:
FTS Install: vimeo.com/363938234/16638c8727

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INSTALLATION
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ALIGNMENT STICKER
Installing the alignment sticker on your
Inspire 2 (ONE-TIME INSTALL):
The alignment sticker will help you properly install the Nexus i2 PRS
in the right spot every time.
1) Locate the right arm of the drone, the same side as
the USB port. The at end of the sticker will butt up to the
support piece.
2) Peel the sticker off and align the black tab of the sticker
with the very bottom of the small web in the arm coupler.
3) Place the alignment sticker on the right arm of the aircraft
as shown.
1
2
3
WATCH THE INSTALL VIDEO AT:
Alignment Sticker:
vimeo.com/363939481/4ed677a0da

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INSTALLING THE NEXUS
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INSTALLATION
Attaching Nexus i2 PRS to the
Inspire 2 aircraft:
1) Attach Nexus i2 PRS to the aircraft’s right arm. Make sure the
Nexus i2 PRS bracket is lined up with the alignment sticker on the
arm.
a) The red end cap on the Nexus i2 PRS should be facing the back
of the aircraft. Refer to safety precautions on page two (2) of this
document.
2) Plug in the USB-C cable from the ATS housing into the Nexus i2
PRS unit. Ensure that the right-angle USB power cable is securely
plugged into the aircraft’s USB port on the right side of the aircraft.
3) Spin the front right propeller to ensure there is no interference
with the cable.
1
2
WATCH THE INSTALL VIDEO AT:
Attaching Nexus: vimeo.com/363938622/842edbd7fb

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PREVENT DAMAGE
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SECURE ATS CABLE
Securing the ATS Harness Cable when the Nexus is not installed:
1) Take the USB -C cable from the ATS and gently curl the cable about 3 inches from the end of the USB plug.
2) Press the USB-C Cable against the Arm and attach tightly using the Nexus Velcro Strap. Make sure that the cable is on the front side
of the arm and NOT on the top of the arm. The velcro strap buckle should be inside the cable loop as shown below to prevent the
cable from slipping out.
3) Slide the Strap about 1/2 Inch down from Top Arm Bracket on the Inspire 2.
4) There should be about 5 inches of cable between the strap and the ATS to allow the Arm to raise during ight.
5) Check to make sure that prop is not making any contact with the USB-C. Readjust cable position if there is any contact.
This is an extremely
important step
DO NOT FLY YOUR INSPIRE 2 WITHOUT
THE ATS HARNESS SECURED.

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LED RING
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NOTES ON HOW IT WORKS
Understanding the LED light ring
The Nexus i2 PRS uses a LED light ring at the front of the system
to indicate the system status to the user. The included Nexus MTD
also provides users with Nexus i2 PRS systems status via both LCD
screen display and audible indication.
IMPORTANT NOTE:
Any system error will be indicated by a purple color on the LED ring.
If an error is present, please refer to the troubleshooting section
of this guide and contact: [email protected] . Few errors
are user correctable. UNDER NO CIRCUMSTANCES IF AN ERROR IS
PRESENT, SHOULD YOU ATTEMPT FLY WITH THE NEXUS I2 PRS.
LED Light Ring Colors and
System Status State:
GREEN BUTTERFLY = SAFE AND CANNOT DEPLOY
System battery is charging. The LED ring will grow with solid
green lights on each side from the bottom of the ring to the top,
once the green lights meet at the top, the system is charged.
GREEN SOLID = SAFE AND CANNOT DEPLOY
Nexus i2 PRS is fully charged and beginning startup sequence.
GREEN ROTATING + AUDIBLE TONE = SAFE AND CANNOT DEPLOY
System is disarmed.
BLUE ROTATING + AUDIBLE TONE
The system is charged, passed its internal checks, established
communication, and is calibrated and in a Standby Mode,
Ready for Pre-Arm.
YELLOW ROTATING + AUDIBLE TONE
The Nexus i2 PRS is in its Pre-Armed Mode and ready for
takeoff. The LED ring will change to rotating red once the
arming altitude above ground has been reached.
RED ROTATING + AUDIBLE TONE
The Nexus i2 PRS is armed and can now automatically deploy
or be manually deployed.
RED FLASHING + AUDIBLE TONE | DEPLOYED !
PURPLE + AUDIBLE TONE Nexus i2 PRS system error.

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IT IS HIGHLY RECOMMENDED TO USE THE NEXUS MTD
In absence of the Nexus MTD the LED light ring and audible tones indicate system Mode.

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CHECKLIST
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Aircraft Inspection Checklist:
Propellers installed and checked for cracks
Batteries are charged and rmly in place
DJI remote batteries are charged
Nexus battery charged
Nexus MTD remote charged
Nexus FTS installed under nose cover
Alignment sticker installed on aircraft
FTS cable connected to ATS
USB cables strapped to aircraft arm with
Velcro retention strap
Nexus Installation:
Aircraft rear “Hot Zone” cleared before removing
Nexus from its case
Nexus is attached to aircraft, the bracket is aligned
with the alignment sticker, and the red cap is
pointed towards the back of the aircraft.
USB-C cable plugged into Nexus
Aircraft USB selector switch on “mobile”
Velcro retention strap securing cables
to aircraft arm
Pre-ight Checklist:
T/O | LZ clear and safe from other individuals
Power on Aircraft
Power on Nexus MTD
Power on Nexus PRS
Wait for boot up tones and LED indication
MTD reads “Ready for Pre-Arm”/LED indicates rotating blue
Pre-Arm Nexus (Rotating yellow/MTD indicates “Pre-Arm”)
RPIC clear of the T/O | LZ
Flight Checklist:
No errors present
All individuals clear the T/O | LZ
Airspace/Mission Route Clear for T/O
Post-ight Checklist:
Land aircraft with the Nexus pointed in safe direction
Stop aircraft propellers
The Nexus LED indication is rotating yellow and MTD shows
“System Pre-Armed”
Disarm Nexus via MTD, LED should turn rotating green and MTD should
read “Disarmed”
Enter LZ, power off aircraft
Power off Nexus
Power off MTD
Unplug USB-C cable and secure to aircraft with Velcro retention strap
Remove aircraft from LZ while keeping Nexus PRS pointed in safe
direction, place the Nexus PRS in its case.