Daktronics C44 - Manual (Page 22)

2-8 New Track
Installation
Start Line Interface from Start Line J- Box
Description To (SLI)* Cable
Specifications
Wire Color From (SLJB)** Function
+12V Yel Pair 5 TB2-1 +12V-P
L-Pro Tree Black Pair 1 TB2-2 PROTREE light
–N
L-Ready Red Pair 1 TB2-3 Ready light –N
L-Times Reset Brn Pair 6 TB2-4 Timer Reset
light-N
S-STARTGO Blu Pair 4 TB2-5 GO/Reset
switch-N
S-EMERG Grn Pair 3 TB2-6 Emergency
switch-N
S-SINGLE Wht Pair 2 TB1-3 Singles/Drag
switch-N
GND Black Pair 2 TB1-4 GND-N
Cable From
SBI to SLJB for
Hand-held
Starters
Console
SHIELD
Beldon 9774
(Dak W-1399)
SHIELDS Not Connected EARTH
*Start Line Interface Drawing A-72242
**Start Line J-Box Drawing A-75431
Start Line Photocells
The cable used for connecting the start line photocells to the start line junction box
(spreader cable) is pre-marked showing which photocell it connects to. Connect the cable
to the photocells as marked.
Installation of the Three-Amber Tree
The Daktronics three-amber tree is totally compatible with all Daktronics C-44 race
controllers. To install the three-amber tree, connect the tree cables into the connector on
the bottom side of the tree. Plug the AC power cord into an outlet capable of supplying a
minimum of 20 amps.
Regulations stipulate that the pre-stage bulb should be approximately 80 inches from the
ground; a longer mounting pipe will be necessary in some cases.
Eight, 60-watt yellow "bug" lights should be used for the stage and pre-stage lamps.
(There are two bulbs for each stage and pre-stage position to prevent confusion should
one bulb burn out.) The twelve amber, four green, and four red lamps should be standard
85-watt colored flood lamps (GE part #13472 red, #13474 green, #13463 amber). These
should be installed in the sockets using the supplied gasket to provide adequate bulb
support and moisture protection. The gaskets should be used with the lamp sockets to
seal and prevent vibration. The blue Sure Start lamp (if used) may be any blue-colored
reflector-type bulb rated at 100 watts or less.
Due to the increased power consumption of this starting tree, it is essential that the tree be
connected to a power supply sufficient to supply a minimum 20-amp current at the outlet.
If the power available is insufficient, some slight dimming of the staging lamps will be
noticed. This will not harm the tree, but the use of long extension cords should be
avoided. Refer to Section 4.2 for details on maintenance.
Intermediate Wiring (Optional) and Finish Line
This section consists of wiring the intermediate section of the track and the finish. This
includes the 60 foot (I 1), the 330 foot (I 2), the 1/8th mile speed trap (I 3), the 1/8 mile
finish, the 990 foot (I 4), and the 1/4 mile speed trap/finish.