Code 3 LED PriZm II Perimeter Lights - Manual (Page 5)

Light Head Next Pattern
Indication
Previous Pattern
Indication
Default Pattern
Indication
8-Up 3x7 or 4x6 All lights on No lights on All lights flash twice
12-Up 3x7 or 4x6 Right side on Left side on All lights flash twice
24-Up 7x9 Top third on Bottom third on All lights flash twice
36-Up 7x9 Right side on Left side on All lights flash twice
Table 2 - Pattern Change Indication.
5
Flash Pattern Syncing -
The flash patterns of multiple light head may be synced together by
simply connecting the yellow wires of all light heads to be synced. Up to 20 light heads my
be synced in this fashion. All flash patterns that share the same flash rate may be synced
together. For example, any 75 FPM flash pattern may be synced with any other 75 FPM
flash pattern, etc. If this feature is not desired, the end of the yellow wire must be sealed or
capped.
Flash Pattern Dimming -
Flash patterns are dimmed when the purple wire is given a +12VDC
signal. It is up to the installer to determine how to integrate this feature into their system. If
this feature is not desired, the end of the purple wire must be sealed or capped.
Cutoff and Steady Burn Override -
The green wire supports two different features, but only
one may be used for a given light head. The green wire’s default mode is Cutoff. To toggle
between the two modes, connect the black and white wires to ground. Apply +12VDC to the
red wire. The light head will flash once and remain off until the white wire is removed from
ground. This indicates that the mode has been successfully changed. NOTE: These two
features require a different signal to activate them. Cutoff is activated by a ground signal, and
Steady Burn Override is activated by a +12VDC signal.
Cutoff (Default) allows a ground input signal to the green wire to cut off the right side of the
light head on 36-up and 12-up light heads, and cut off the whole light on 24-up and 8-up light
heads. This is useful for NFPA vehicles that need to cut off their white lights when blocking
right-of-way. Upon removal of the ground signal, the current flash pattern will resume.
Steady Burn Override allows a +12VDC input signal to override the current flash pattern and
put the light head into steady burn. Upon removal of the +12VDC signal, the current flash
pattern will resume. NOTE: If steady burn is determined to be too bright, simply connect the
purple and green wires together to the +12VDC input, so that dimming will be enabled when
steady burn override is enabled.
It is up to the installer to determine how to integrate this feature into their system. If this fea-
ture is not desired, the end of the green wire must be sealed or capped.