Code 3 21TR Plus MC - Manual (Page 2)

2
Warning Signal Modules:
Selecting Flash Patterns:
There are seven possible 3-Level modes of operation (see Table 1). These modes are activated by combinations of the
L1 (GRN/BLK), L2 (WHT/BLK) and L3 (RED/BLK) wires. For example a standard progressive switch will use the Level-1
(L1), Level-2 (L1 + L2) and Level-3 (L1 + L2 + L3) modes. When using individual switches, make sure to select patterns
for all possible switch combinations. Each of the 3-Level modes of operation can individually fl ash up to 10 pairs of
lightheads. Each pair of lightheads is programmed with a different wire in the 16 conductor cable (see Table 2).
NOTE: The 951 Series Software can operate a light bar with Multi-Color lightheads in three zones (Rear, Front
or Corners). If any of the lightheads in a zone are Multi-Color, then that entire zone is considered a Multi-Color
Zone and all 49 fl ash patterns will be available. If there are no Multi-Color lightheads in a zone, then that zone is
considered a Single Color Zone and only fl ash patterns 1 through 13 will be available.
In addition, if the lightbar contains Multi-Color takedown or alley lightheads, these heads can be programmed
with the same 49 fl ash patterns as the other Multi-Color lightheads. If the lightbar contains Single Color
takedown or alley lightheads, these heads can be programmed with fl ash patterns 1 through 13.
The fl ash patterns are divided into four groups. The fi rst group is the ‘Standard Flash Patterns’ and is available
in both Multi-Color and Single Color Zones (1 through 13). The next three groups are only available to zones
that are confi gured as Multi-Color Zones. The second group is the ‘Primary Only Patterns’ (14 through 25). The
third group is the ‘Secondary Only Patterns’ (26 through 37). The last group is ‘Primary to the Driver’s Side and
Secondary to the Passenger’s Side Patterns’ (38 through 49). Primary and Secondary refer to the two colors that
are in a Multi-Color lighthead. See Table 3 to determine which color is considered Primary or Secondary in each
type of lighthead.
The fl ash patterns in the fi rst group (1 through 13) will automatically adjust to operate the lightheads for the
Multi-Color and Single Color zones. It is possible to have Multi-Color and Single Color lightheads in the same
zone. If the light bar is confi gured this way, then please note that all fl ash patterns will be available to the Single
Color lightheads, but these lightheads may not fl ash in an effective way in all fl ash patterns. The best fl ash
patterns to use for a Single Color lighthead in a Multi-Color zone are the ‘Primary Only Patterns’ (14 through 25).
STEP 1:
Power-up the light bar. Select the desired 3-Level mode to program by applying +power to the appropriate wire in the 16
conductor cable (see Table 1).
STEP 2:
Continue applying +power to the wire(s) from Step 1. Enter Pattern Selection Mode by applying +power to the BLK/RED
wire in the 16 conductor cable.
NOTE: The BLK/RED wire must be connected to +power during Pattern Selection Mode and must be removed
from +power when pattern selection is completed. Failure to remove the BLK/RED wire from +power will effect
the normal operation of the light bar.
STEP 3:
Continue applying power to the BLK/RED wire and the wire(s) from Step 1. Refer to Table 5A and Table 5B for the
available fl ash patterns.
To increment to the next pattern, momentarily hold the appropriate pattern selection wire (see Table 2) to +power for less
than two seconds and then release. The four corner light heads will turn on steady to indicate that the pattern has been
incremented.
To decrement to the previous pattern, momentarily hold the appropriate pattern selection wire (see Table 2) to +power for
two to four seconds and then release. The four corner light heads will turn on steady and then turn off to indicate that the
pattern has been decremented.
After the pattern selection wire has been released, the new pattern will begin to fl ash and is automatically stored each
time. Repeat this step for each pair of heads using the appropriate pattern selection wire (see Table 2).
NOTE: To restore the Factory Default Emergency Warning Flash Pattern to any pair of lightheads, hold the
appropriate pattern selection wire to +power for more than four seconds. The four corner light heads will turn
on steady, turn off and then turn on steady again to indicate that the Factory Default Emergency Warning Flash
Pattern has been restored. The factory defaults for a progressive switch application (Level-1, Level-2 and
Level-3) are identifi ed in Table 4.
STEP 4:
Repeat steps 1 through 3 for each of the seven possible 3-Level modes as desired.