Page 4
CONTROL SWITCHES (SUPPLIED BY CUSTOMER)
WHELEN
DIAGNOSTIC
INDICATOR
4
3
2
1
INDICATOR PANEL
TO DIAGNOSTIC
PATTERN 4
PATTERN 2
PATTERN 1
WHITE
BROWN
ORANGE
PATTERN 3
GREY
BLUE
CTRL 3
DIP SWITCH
CONFIGURATION
COMM.
CONTROL
PATTERNS
POWER
1-CTRL 1
2-CTRL 2
3-CTRL 3
4-LO PWR
3&4
1&2 + BAT.
GROUND
ALTERNATING
ALTERNATING
OUTLETS
1
2
3
4
RED
RED
BLACK
BLACK
VIOLET
YELLOW
GREEN
WHITE
RED
BLACK
TO DESIRED LIGHTHEAD
ASSEMBLY.
(TYP. 4 PLACES)
12V BATTERY
+12V
GROUND
CTRL 1
CTRL 2
LO PWR
(SUPPLIED BY
3 AMP FUSE
CUSTOMER)
15 AMP FUSE
(SUPPLIED BY
CUSTOMER)
®
DIAGNOSTIC
1 2 3 4 5
V-INPUT
I-IN @12.8V
FLASHRATE
JOULES HI
JOULES LO
OUTPUT POWER
OUTPUT PER OUTLET
UNIT SPECIFICATIONS
12.8VDC 20%
7 AMPS TYP.
ALT. 2X2
SIMUL. 2X2
SIMUL. 2X1X1
S.C.
6 / 2 / 2 / 2 (TYP)
2 / 2 / 2 / 2 (MIN)
70 WATTS (TYP)
17.5 WATTS (TYP)
±
150 FPM, COMET
140 FPM, COMET
140 FPM, COMET
150 FPM, COMET
25 ft. Communication Cable
(Twisted Pair)
P/N 46-9641638250
GREY
BLUE
FUSE
BLUE:
to RS485A
GREY:
to RS485B
TO
S.C.
Network
FLASH PATTERNS:
=
+12VDC
TRIPLE FLASH
MICRO-BURST 3
MICRO-BURST 2
SEQUENTIAL
MODU-FLASH
RAPID RANDOM
DOUBLE FLASH
COMET FLASH*
* Only pattern available in
Serial Communication mode
4
3
2
1
K.A. COMET FLASH
K.A. DOUBLE FLASH
RAPID RANDOM
K.A. MODU-FLASH
K.A. SEQUENTIAL
KA MICRO-BURST 2
KA MICRO-BURST 3
Pattern Wire 1 = BROWN
Pattern Wire 2 = WHITE
Pattern Wire 3 = GREY
Pattern Wire 4 = ORANGE
K.A. TRIPLE FLASH
PATTERN
WIRE
PATTERN TYPE
If the
LED is...
OFF
ON continuously
ON continuously
with a single flash
every few seconds
Flashing
rapidly
Either the outlet in question is not enabled, or the power supply is not turned on.
The outlet, strobe cable and strobe light in question are functioning properly .
Either the outlet, strobe cable and/or strobe light in question are malfunctioning.
In this condition, further investigation of the components is strongly recommended
The ISP74 is operating in Lo power mode.
then...
ISP74 Wiring Diagram
Hi/Lo Mode
Type
Latched
Level
Toggle
DISABLED
Momentary
Momentary
NONE
Single Pole/
Single Throw
Apply +12VDC to
VIOLET control wire
Apply +12VDC to
VIOLET control wire
Apply +12VDC to
VIOLET control wire
No Lo Power Operation
In This Mode
Turn all strobe outlets
off and then on.
Apply +12VDC to
VIOLET control wire
Not
Applicable
12VDC from
VIOLET control wire
OFF
ON
OFF
ON
OFF
OFF
ON
ON
Recommended
Switch type
To Enable
Lo Power Operation
To Restore
Hi Power Operation
Dip Switch
3
Dip Switch
4
Table 2
Table 1
Table 3
