Applied Omni Series User manual

1
Omni DMX Splitter
User Manual
Omni 1x5, 1x10 & 2x5
Applied Electronics
722 Bluecrab Rd.
Ne port Ne s, VA 23606
800-883-0008
appliednn.com
Omni DMX Splitter V1.01 1/31/19

2
INTRODUCTION:
Thank you for purchasing an Applied Electronics Omni DMX splitter. The Omni
line has been designed, built and tested ith pride in the USA. Your Omni splitter
comes ith a 5 year arranty and has been constructed to endure years of use in the
rough and tumble entertainment environment.
The ANSI E1.11-2008(R2013) standard, commonly kno as DMX, is an RS-485
digital protocol for transmitting data from a controller to entertainment lighting and
practical devices. While the DMX signal is very robust it is not impervious to outside
interference. There are also limitations to transmitting distance and the number of
receivers on a line. For these reasons a splitter is an invaluable tool in the data chain
to ensure that the data transmitted reaches receivers correctly.
Common data chain issues include:
•Splitting – By the DMX standard, only 32 receiving devices may be connected
on a daisy chain line. Also “Y” connections used to send signal in different
directions are not permitted.
•Line loss – Due to DC voltage loss continuous DMX lines in excess of 1000ft
are not recommended.
•Interference – Outside electromagnetic sources can corrupt the data on a DMX
line and cause undesired operation of lighting fixtures.
•Surges – Voltage spikes from shorted cables and faulty fixtures can feed do n
the data chain and damage other fixtures or the console.
The Omni splitter helps eliminate all of these issues by:
•Isolation – Each output transmits its o n copy of the input signal so that that 32
fixtures may be connected to each port.
•Amplification – Because each output transmits ith the same full po er as the
original, total line lengths of more than 1000ft may be obtained.
•Filtering – The input data signal is digitally copied in the isolation process so
only clean data is fed to the outputs. As a result any (acceptable) interference
received at the input is filtered out before being retransmitted.
•Isolation – The input as ell as each output port are separated from each other
by galvanic and optical isolation. This ensures that a damaging voltage spike on
one line can't propagate to another.
•oltage suppression – All data ports have TVS (transient voltage suppression)
diodes that short voltage spikes to ground before they can damage internal
components.
Omni DMX Splitter V1.01 1/31/19

3
Power input
•Your Omni DMX splitter is equipped ith a universal po er supply hich ill
allo it to operate on input voltages of 85-250 AC @ 47-66Hz.
•A 1 amp 250 fuse (3AB 1/4”x1-1/4” style) is provided for protection of internal
components and should not be replaced ith a fuse larger than 1 amp.
•The po er input connector is a Neutrik powerCON 20A (NAC3MPA-1) and is
compatible ith the NAC3FCA cable mount plug.
•The loop-thru powerCON connector is an NAC3MPB-1 and and is compatible
ith the NAC3FCB cable mount plug.
•The loop-thru connection is limited to 10A. Do not connect more than 10A of
load current to this outlet as it may cause damage to the unit.
•Each splitter comes ith a 3' powerCON to NEMA 5-15 (Edison) input po er
cable.
•1' powerCON A-B jumper cables may be purchased separately to interconnect
multiple units.
Data input
•XLR input and loop-out data connectors are provided for feeding DMX data into
the Omni splitter and connecting other devices to the same DMX line.
•The loop-out connector passes all 5 pins directly and is not isolated from the
input.
Omni DMX Splitter V1.01 1/31/19
Input connectors, status LEDs & terminator switch
Power input, loop-thru & fuse connections

4
Termination switch
When engaged the termination s itch places a 120ohm resistor bet een
pin number 2 & 3 of the 5 pin input XLR connector. This resistor prevents data
reflection back do n the transmission line. The terminator should only be
engaged hen no other devices are connected to the loop-out data connector.
If other devices are connected to the loop-out connector the last device should
be appropriately terminated.
When lit the 3 LED indicators on the front of the Omni Splitter inform the user that:
✔POWER – The universal po er supply is converting input voltage to 5VDC
✔SIGNAL – Digital data is being passed by the RS-485 receiving chip
✔TERM – The termination s itch is pushed in and the line is terminated
Data output
•XLR output data connectors are provided for feeding DMX to up to 32
receivers each.
•The po er supply for each output is galvanically isolated from the input and
the other outputs.
•The data line of each output are optically isolated from the input and the
other outputs.
Maintenance
No routine maintenance procedures are required as your Omni DMX splitter is a
solid state device that should provide years of trouble free operation.
Cleaning
Should your unit become dirty, disconnect po er and clean the outside of the
chassis ith mild soap and a damp cloth. Do not submerge the unit in ater or use
harsh or abrasive cleaners. Do not connect po er until the chassis has fully dried.
Excess dust may be gently blo n from the interior of the unit using a can of
electronics cleaner (compressed air). Do not use high pressure, et or oily “line air.”
Omni DMX Splitter V1.01 1/31/19
Output XLR connectors

5
Troubleshooting
Your Omni DMX splitter requires no configuration or setup, ho ever if something
doesn't seem to be orking correctly you can check the follo ing items. Please feel
free to call Applied Electronics for tech support at any time. [phone]
When checking data issues it is helpful to have a kno n orking device
(dimmer, LED light etc) to test ith. If you suspect that your splitter is not orking
correctly, test a single DMX device by connecting it directly to your console and
confirm that it functions normally. You can then compare this “kno n good”
functionality to the operation hen connected to a splitter output. This is method is
referred to as “test ith device” in the troubleshooting table belo .
ISSUE POSSIBLE CAUSE CORRECTIVE STEPS
No po er LED No po er supplied to unit Check the source po er outlet
and the po er supply cable.
Confirm that the po erCON
connector is t isted into the
“locked” position.
Input po er fuse blo n Remove fuse (¼ turn) and
check. If blo n, replace ith
MAX 1A 250V fuse
No signal LED and no
DMX from loop-out port
No data being received
from transmitter (console)
Test data line ith device
No signal LED but good
DMX confirmed at loop-
out port
Failed RS-485 receiving
chip
Replace receiver chip by
follo ing steps in the repair
section
Signal LED on but no
output from any port
Signal may not be
compatible DMX
Test data line ith device
Signal LED on but no
output from any isolated
port
Disconnected jumper cable Check jumper cable
connection bet een input and
output PCBs
No output from a single
isolated output port
Failed optical isolation or
RS-485 transmitter chip
Replace opto-iso and/or
transmitter chips by follo ing
steps in the repair section
Omni DMX Splitter V1.01 1/31/19

6
Repair
Shorted cables, faulty fixtures and accidents do occur, so it is possible that at
some point in the life of your splitter a data port may be subjected to voltages or
currents that exceed the capacity of the built in protection. In that case a
receiver/transmitter or optical isolation data chip may be damaged. In order to keep
do n time to an absolute minimum spare data chips are included on board for
immediate solder free replacement.
If after follo ing the trouble shooting guide
you believe it necessary to replace the input RS-
485 chip:
1. Unplug po er from the splitter
2. Remove the top cover
3. Remove chip #U1 “INPUT SN75176” by pulling
it straight up and out of its socket. (A small flat
blade may be used to gently pry the chip up but
be careful not to bend the leads or damage the
socket)
4. Remove the “SPARE SN75176” from its socket
in the same manner
5. Align the spare chip ith the U1 socket, being
sure that the “dimple” signifying the “pin 1” end
of the chip is at the same end as the “notch” in
the socket (right hand end as pictured)
6. Gently press the spare chip until it seats fully in
the socket, being careful not to bend any leads
7. Replace the top cover
8. Re-test the unit for correct operation
If after follo ing the trouble shooting guide you believe it necessary to replace
the output RS-485 and/or optical isolator chip for a specific channel:
* NOTE: It is recommended that the SN75176 be replaced before the 6N37
1. Unplug po er from the splitter
2. Remove the top cover
3. Remove the possible faulty chip (U1-U5 6N37 opto-iso or U6-U10 output SN75176) by
pulling it straight up and out of its socket. (A small flat blade may be used to gently pry
the chip up but be careful not to bend the leads or damage the socket)
4. Remove the SPARE 6N37 or SN75176 (as needed) from its socket in the same
manner
5. Align the spare chip ith the empty socket, being sure that the “dimple” signifying the
“pin 1” end of the chip is at the same end as the “notch” in the socket (right hand end
as pictured)
Omni DMX Splitter V1.01 1/31/19
Input PCB

7
6. Gently press the spare chip until it seats fully in the socket, being careful not to bend
any leads
7. Replace the top cover
8. Re-test the unit for correct operation
Technical Details
Omni DMX Splitter V1.01 1/31/19
S stem Block Diagram
Output PCB

8
Omni 1x5 Omni 1x10 Omni 2x5
Po er input connector Neutrik powerCON 20A NAC3MPA-1
Po er loop-thru connector Neutrik powerCON 20A NAC3MPB-1
Input po er 85-250 VAC @ 47-66Hz
Max loop-thru po er 10A @ 250 VAC
Po er consumption 15W 30W
Input fuse MAX 1A 250V (3AB 1/4”x1-1/4” style)
Number of DMX inputs 1 2
Number of DMX loop-outs 1 2
Number of isolated outputs 5 10 10
DMX input connector(s) Neutrik 5 pin male XLR NC5MAH (3 pin XLR also available)
DMX output connectors Neutrik 5 pin female XLR NC5FAH (3 pin XLR also available)
Galvanic po er isolation 500VAC (1000VDC) per output circuit
Optical data isolation 5000VAC per output circuit
Voltage suppression 5.8V @ 57A (330W)
Dimensions 1 rack space chassis – 19”x5”x1.75”
Weight 4lb 4oz 4lb 6oz 4lb 8oz
Po er cable provided 3' 18 a g NEMA5-15 (Edison) to Neutrik NAC3FCA powerCON
XLR connectors
5 pin signal list:
1. Signal Common – cable shield (not chassis ground) *connected to isolated
ground of 5VDC po er for each outlet (i.e. each signal common is independent)
2. Data - or “B”
3. Data + or “A”
4. Data - (for 2nd data line or other manufacturer specific use)
5. Data + (for 2nd data line or other manufacturer specific use)
* In the Omni DMX splitter pins 4 & 5 are connected bet een the data input and loop-
out connectors. This pin to pin connection is not modified by the splitter in any ay.
Pins 4 & 5 on the isolated outputs are not used or connected in any ay.
Omni DMX Splitter V1.01 1/31/19

9
APPLIED ELECTRONICS OMNI SPLITTER WARRANTY TERMS AND CONDITIONS
SHIPPING POLICY:
All shipments are "Freight On Board" Ne port Ne s, Virginia, and shall be in good order upon release
to the carrier. All claims for damage or loss in transit must be filed by the consignee against the
carrier. All freight should be checked for quantity against bill provided by the carrier. Inspect
shipments by removing all packaging and checking the equipment for damage to chassis, cables,
connectors & controls before signing carrier's receipt. Any product exhibiting external damage should
immediately be tested for correct operation as internal damage may also have occurred. Damage
noted on freight bill ill enable consignee to file a claim against the carrier. Any transport insurance is
the responsibility of the purchaser. Applied ill not be held responsible or liable for damage, loss or
delay in transit.
PRODUCT GUARANTEE:
Applied guarantees that its Omni DMX Splitter products ill be free from defects in orkmanship and
materials for a period of five (5) years from date of shipment. Defects in orkmanship or materials
becoming evident ithin the arranty period ill be repaired by Applied at no cost for parts or labor to
the customer. Applied reserves the right to replace any product or part ith the same or equivalent
item rather than repair it. Replaced items become the property of Applied. This guarantee applies only
to products that have been used and maintained according to manufacturers guidelines and does not
cover damages incurred in transit or as a result of improper use. These damages include but are not
limited to those caused by improper voltage or installation, drops and falls or short circuits in
connected equipment. Applied reserves the right to inspect product for damage not covered under
this guarantee before conducting repairs. The customer is responsible for shipping product to Applied
for service. If repaired under arranty, product return shipping ill be paid by Applied. Items repaired
or replaced under arranty do not extend or rene the original guarantee period.
Except as expressly stated and arranted herein: (i) Applied disclaims any other arranties, hether
express or implied, including any arranty of merchantability or fitness for a specific purpose; (ii) this
arranty extends exclusively to the original purchaser of the arranted goods and subsequent
purchasers are not covered by this arranty; (iii) this arranty does not apply to a part hich the buyer
misuses, damages, improperly maintains, repairs, or replaces ith a part not of Applied's manufacture;
and (iv) except for its duty to repair or replace defective parts, Applied shall not be liable for any
additional costs, consequential or incidental damages resulting from a defective part.
Applied reserves the right to change materials or design, hen, in our opinion, such changes ill
improve the product. This arranty is performable in Ne port Ne s, Virginia and all obligations,
rights, and duties of buyer and Applied shall be governed by the la s of the State of Virginia.
RETURN POLICY:
Prior to returning any item purchased from Applied, a customer must first contact Applied to obtain a
Returned Goods Authorization number (RGA#). Returned goods ithout prior authorization ill not be
accepted. Applied reserves the right to refuse return shipments here the freight has not been pre-
paid by the returning party. A restocking fee of 25% ill be charged on all returns in good resalable
condition. Items received in poor or damaged condition ill be subject to all applicable repair costs
plus the 25% restocking fee.
INSPECT ALL ITEMS FOR ANY DAMAGE BEFORE SIGNING BILL OF LADING
Omni DMX Splitter V1.01 1/31/19