ELM Video DS4 User manual

DS4 / DSP
DMX512 1x4 Splitter
Users Guide
DS4-DSP-Users-Guide.lwp
copyright © 2011-2016 ELM ideo Technology, Inc.
ELM Video
Technolo y
“Innovative DMX and MIDI Products”
ELM Video
Technolo y, Inc.
“Innovative DMX and MIDI Products”

DS4 OVERVIEW
The DS4 is a DMX512 1 in 4 out splitter that takes a DMX512 output of a lighting console or any
device that transmits a DMX512 signal and actively splits the signal providing 4 separate DMX512
outputs and offers electronic protection by separating the input device and output devices using a
Transient Voltage Suppression chip. Field serviceable: socketed IC's for easy replacement standard
IC's available from many electronic parts suppliers replaceable power supply standard 5 x 20mm
internal fuse. Power LED indicating power is present and 'Active' LED indicating DMX signal is
present.
CONNECTION
Connect the power supply to the power input connector and apply power. Connect a DMX512 source into the
input connector (5 or 3 pin) and insure the data LED is illuminated (showing data is present). If there is an
optional loop through connector connect to other devices or terminate with a 120 ohm terminating connector.
If a loop through connector is not installed the internal termination jumper should be bridged. Use any of the
outputs to source up to 32 DMX512 devices (depending on the devices and configuration). As with any
DMX512 daisy chain each output must be terminated at the end of each daisy chain. Unused outputs do not
have to be terminated.
OPERATION
The DS4 is simple to use. Connect a DMX512 data signal input into the input connector the same DMX512
data signal will be sent out to all 4 outputs independently. Each output can source up to 32 DMX512 devices.
There is no user operational controls.
DS4-DSP-Users-Guide.lwp
copyright © 2011-2016 ELM ideo Technology, Inc.
ELM Video
Technolo y
“Innovative DMX and MIDI Products”
DMX512
input
DMX512
outputs 1 ~ 4
Power
LED
ctive LED
(data indicator)
DC Input

CONFIGURATION EXAMPLE
Terminate
Terminate
Terminate
DMX512 Devices
DMX512 Devices
House
Dimmer
Adds 4
additional
outputs
DMX512
Lighting
Console DS4
DS4
1 x 4
splitter
1 x 4
splitter
DS4-DSP-Users-Guide.lwp
copyright © 2011-2016 ELM ideo Technology, Inc.
ELM Video
Technolo y
“Innovative DMX and MIDI Products”

PCB BLOCK DIAGRAMS
STANDARD CHIPSET
INPUT: The input stage (pins 2 and 3) connects directly to the input of the 75184 chip (IC # 5).
OUTPUT: The output of IC #5 sources IC #’s 1 ~ 4 that supplies data to the output connectors 1 ~ 4. Pins 1 of
each of the output connectors are tied to the power supply common.
OPTIONAL UPGRADED CHIPSET
INPUT: The input stage (pins 2 and 3) connects directly to the input of the MAX3088 chip (IC # 5).
OUTPUT: The output of IC #5 sources IC #’s 1 ~ 4 that supplies data to the output connectors 1 ~ 4. Each of
these IC’s are TVS (Transient Voltage Suppression) IC’s that provide isolation for each of the outputs.
Pins 1 of each of the output connectors are tied to the power supply common.
DS4-DSP-Users-Guide.lwp
copyright © 2011-2016 ELM ideo Technology, Inc.
ELM Video
Technolo y
“Innovative DMX and MIDI Products”
TVS
Isolated
Input
Output
IC’s 1 - 4 Pin 2 - Data -
Pin 3 - Data +
Pin 1 - Power
Supply Common
Input IC
IC #5
DS4 Version A
Pin 2 Data -
Pin 3 Data +
Pin 1 Open
True
Fault
Input IC
Pin 2 - Data -
Pin 3 - Data +
Pin 1 - Power
Supply Common
Input IC
IC #5
DS4 Version B
Pin 2 Data -
Pin 3 Data +
Pin 1 Open
TVS Isolated
Output IC #2
TVS Isolated
Output IC #1
TVS Isolated
Output IC #3
TVS Isolated
Output IC #4

SERVICING
FIELD SERVICE: For Experienced Technicians
Disconnect all power and data connections. Remove the 5 face plate mounting screws on the PCB side. Use
only direct replacement parts and use static discharge precautions.
To replace an IC using a small flat screwdriver carefully remove the IC by gently lifting up between the socket and the IC
keeping the IC as flat as possible. Bend the replacement IC’s legs so they are pointing straight down and not angled
outward. Align each pin In the center of each pin hole and gently snap into place all legs at one time DO NOT insert at an
angle. Insure the IC is flush on the socket and all pins are inserted.
TROUBLESHOOTING

check if power is present via the power LED if
not check the internal fuse.
 check if the input has a DMX512 signal by
bypassing the DS4 if not check the DMX512
console or source.
 If the data and power are o.k. replace the input
IC and possibly the output IC’s.

If all outputs don’t work

replace the respective output IC (i.e. output
doesn’t work 4 replace IC # 4).

If any one of the outputs don’t work and the
others do
 check fuse and power connections  Unit won’t power up
CHECKPROBLEM
DS4-DSP-Users-Guide.lwp
copyright © 2011-2016 ELM ideo Technology, Inc.
ELM Video
Technolo y
“Innovative DMX and MIDI Products”
Note - Take care not to touch the component pins or the inner pins of the connectors. Electrostatic discharge may
cause permanent damage to the unit.
5x20mm
Fuse
Input IC
4 Ouput IC’s
Face Plate
Screws
Term
Jumper

SPECIFICATIONS
Chassis: Anodized Aluminum .093" thick RoHS compliant.
Voltage Input: +5VDC
Power: Apx 350mA with 4 outputs sourcing 32 loads each
Data Type: DMX512 (250Khz)
Data Input: DMX512 - 5 (or 3) pin male XLR
Pin 1 - (Shield) Not connected, Pin 2 Data - ,
Pin 3 Data +,
Data Output: 4 separate DMX512 outputs - 5 (or 3) pin female XLR's Pin 1 - Power supply
common, Pin 2 Data -, Pin 3 Data +
Dimensions: 3.7 x 6.7 x 2.1 inches
Weight: 1.5 pounds
Internal PCB Fuse: 500mA 5x20 mm
External Power Supply: +5VDC wall mount
Voltage Input: 100 ~ 132 (or 240) VAC
Current Output: 1 Amps Typical
Power: 5 Watts Typical
Polarization: Positive Center
Output Connector: Barrel Plug 2.5mm I.D. x 5.5mm O.D. x 9.5mm
DS4-DSP-Users-Guide.lwp
copyright © 2011-2016 ELM ideo Technology, Inc.
ELM Video
Technolo y
“Innovative DMX and MIDI Products”