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ETSP990
Thank you for purchasing this SoundOff Signal product. With proper
installation and care, this unit will provide years of trouble-free service.
SoundOff Signal
3900 Central Parkway
Hudsonville, MI 49426
Ph: 800.338.7337
Ph: 616.896.7100
Fx: 616.896.1286
Function Table
Wire
AWG
1
2
3
4
5
6
J5
J5
Function column intentionally left blank. Please fill in
appropriate functions and store in glove box for future
reference / tech support.
16
16
16
16
16
16
18
18
Color
Grn/Yel
Grn/Yel
Grn/Yel
Grn/Yel
Grn/Yel
Grn/Yel
Black
White
Red
8
Item
Switch 1
Switch 2
Switch 3
Switch 4
Switch 5
Switch 6
Ground
Ignition
Power
Function
Ground
Ignition
Power
ETSP990 Wiring Instructions
1. Plug in the 8 Gauge Red-Power wire (to battery):
A. Protect the Battery with a 60 Amp fuse (not supplied).
B. The stainless steel “U” grommet on the back of panel
must be removed to install the Red-Power wire and
replaced when finished.
2. Plug in the 2-position wire harness to J5 connector.
A. White - Hot Wire (ignition)
B. Black - Ground Wire
3. Attach the red wire to any power source, preferably the fuse box.
4. Attach the black wire to a clean, unpainted grounding point.
5. The three (3) green/yellow cables control the switch box functions.
6. To make installation easier, all connectors are plug/input specific.
ETSP990 (60 Amps Max) Digital Switch Panel
Power Terminal
Scrape away any paint from the
selected bolt hole and use a star washer
and ring terminal to ensure a good,
secure electrical connection to the
chassis. The chassis ground must not
be an insulated point.
Note: When drilling into any vehicle
structure, ensure that both sides of the
surface are clear of anything that can be
damaged.
Power Connector
U-Bracket
5
15A 15A
6
Operation Notes
1. If a switch has been associated with the Master
switch, it can always be operated normally by pushing
once (1) to turn ON and a second (2nd) time to turn OFF.
2. If a switch has been associated with and turned on via
the Master switch it can be turned OFF by pushing it one
(1) time.
3. If no buttons are pressed for one (1) minute while in
programming mode, the unit will save the current settings
and exit programming mode automatically.
Panel Back Inside View
3
15A
4
1
2
Chassis Ground
A loose chassis ground
connection WILL cause
intermittent operation!
Use an Available
Bolt/Hole or a
Self Tapping Screw
Star Washer
Ring Terminal
Vehicle Frame
To (-) Black Ground
(12 AWG)
1.800.338.7337 / www.soundoffsignal.com / Thank you for trusting us with your safety!
J5
IGN
TO LOAD
SWS 5
GRN/YEL
16 AWG
TO LOAD
SWS 6
GRN/YEL
16 AWG
Warning: In standard format, each switch is ONLY rated for a maximum 10 Amp load per switch!
Should your amp draw requirements exceed 10 Amps per switch, call 800-338-7337 to order our
optional in-line 40 Amp relay kit, part number PSP0RK1. This kit will increase the maximum amp
load capacity of one switch/lead to 40 Amps. List Price is $35.30 each.
POWER
+12V
INPUT
8 AWG
TO LOAD
SWS 4
GRN/YEL
16 AWG
TO LOAD
SWS 3
GRN/YEL
16 AWG
GND
BLK
18 AWG
WHT
18 AWG
ETSP990_B.CDR 2010-07-16
TO LOAD
SWS 2
GRN/YEL
16 AWG
NST12020-1_B
TO LOAD
SWS 1
GRN/YEL
16 AWG
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Panel Front View
Switches flash to indicate
they are associated to the
Master Switch Program
Mode.
S1 S2
Press and Hold
5-seconds
Program Master Switch Program Momentary Switch
S3
S4 S5 S6
Press and Hold
5-seconds
Master Switch Programming Mode
Switches 2 - 6 (5 switches total) can be associated with the Master Switch.
To Enter Master Switch Program Mode:
1. Press and hold switches 1 and 2 for 5-seconds ( pictured above):
All switch back light LEDs will blink ON and OFF twice.
This indicates that panel is in Master Switch Program Mode.
2. Press each switch (S2 - S6 above) that you want to associate with the Master Switch one (1) time:
All switches will flash when associated with the Master Switch.
3. Press switch a second (2nd) time to dis-associate it with the Master Switch:
Switch will stop flashing.
4. To exit Momentary Switch Program Mode, press Switch 1 a second (2nd) time:
All of the switch LEDs will execute a chase pattern as program mode exits.
Programming Notes:
1. Switches cannot be associated with the Master Switch and be programmed as a Momentary output
at the same time. The Master Switch overrides any Momentary programming.
2. The last program command will override any previously programmed command for any given switch.
IE. If switch 4 is associated with the Master Switch then programmed as a momentary switch,
it will no longer be associated with the Master Switch.
S1 & S2
Momentary Switch Programming Mode
All Switches are factory set at Latching (Press ON / Press OFF).
Switches 2 - 5 (4 switches total) can be set as momentary (ON only when switch is held).
Switch 6 can be set as a 8-second timed momentary output (Press ON - Active for 8-seconds / Auto OFF).
To Enter Momentary Switch Program Mode:
1. Press and hold switches 5 and 6 for 5-seconds ( pictured above):
All switch back light LEDs will blink ON and OFF twice.
This indicates that panel is in Momentary Switch Program Mode.
2. Press each switch (S2 - S5 above) that you want to program as momentary one (1) time:
All switches selected as momentary will flash while in Momentary Program Mode.
3. Press switch a second (2nd) time to return it to Latching mode:
Switch will stop flashing.
4. To exit Momentary Switch Program Mode, press Switch 1 a second (2nd) time:
All of the switch LEDs will execute a chase pattern as program mode exits.
To Program Switch 6 as Timed Momentary (can be performed at same time as steps above):
1. Repeat Step 1 above.
2. Press and hold Switch 6 for as long as you want the timer to run during operation
(Between 1-second & 8-seconds).
3. Repeat Step 4 above.
To review our Limited Warranty Statement & Return Policy for this or any SoundOff Signal product please visit our website at www.soundoffsignal.com
and select the “Warranty & Returns” link along the left column of our home page. If you have questions regarding this product please contact Technical
Services, Monday - Friday, 8 am to 5 pm at 1.800.338.7337, press #4 to skip the automated message. Questions or comments that do not require
immediate attention may be emailed to techsupport@soundoffsignal.com.
1.800.338.7337 / www.soundoffsignal.com / Thank you for trusting us with your safety!
S5 & S6
NST12020-1_B
ETSP990_B.CDR 2010-07-16
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