Code 3 21TR Plus MC - Manual (Page 11)

Rear Upper / End Flash Modules:
Selecting the Rear Upper / End Flash Pattern:
The Central Controller is designed to offer user selectable Rear Upper (Solex) or End Flash (21TR) fl ash patterns. This
feature allows the Rear Upper or End Flash lamps to Alternate whenever any of the ArrowStik functions (LEFT, CENTER-
OUT, RIGHT or FLASH) are activated. The light bar will come from the factory with the Rear Upper / End Flash feature in
the Off pattern. If it is desired to change the pattern, follow the programming procedure below.
STEP 1:
Power-up the light bar. Apply +power to one of the ArrowStik functions (LEFT - RED, CENTER-OUT - RED and ORG or
RIGHT - ORG). Programming will not work if more than one function is selected at a time.
STEP 2:
Continue applying power to the wire from Step 1. Refer to Table 14 for the available fl ash patterns.
To increment to the next pattern, momentarily hold the BLK and BLK/RED wires 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 BLK and BLK/RED wires 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 wires have been released, the new pattern will begin to fl ash and is automatically stored each
time.
NOTE: To restore the Factory Default Rear Upper / End Flash Pattern, hold the BLK and BLK/RED wires 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 Pattern has been restored. Selecting the Rear Upper / End Flash
Pattern for one ArrowStik function will select this pattern for all ArrowStik functions.
TABLE 14: REAR UPPER / END FLASH PATTERNS
PATTERN NUMBER MULTI-COLOR LAMPS SINGLE COLOR LAMPS
1 Off Off
2 Alternating Multi-Color Alternating
3 Alternating Primary Only
4 Alternating Secondary Only
11