Preparing the Legend for Installation
21
Installation, Operation, and Service Manual
Federal Signal
www.fedsig.com
Switch Settings in the Serial Interface Module
The switches to change default settings and reprogram flash patterns are
accessible through openings on the side of the Serial Interface as shown in
Figure 2.
Figure 2 Serial Interface Module
J3 CONNECTOR FOR
SERIAL CABLE FROM
LIGHT BAR
J1 CONNECTOR FOR 24-CONDUCTOR
CABLE SUPPLIED WITH SERIAL
INTERFACE MODULE
SW2 DIP SWITCHES (SEE
TABLE 3.2 ON PAGE 21)
PROGRAMMING HEADER FOR CLONING
FLASH PATTERNS FROM VEHICLE TO
VEHICLE. (SEE THE INSTRUCTIONS
INCLUDED WITH THE PROGRAMMER.)
SW1 PUSHBUTTON FOR
SELECTING FLASH PATTERNS
290A7689
Table 10 SW-2 DIP Switch Settings
SW-2
Switch
Number
Switch Setting
Function
Up
(OFF)
Down
(ON)
1
X
FRONT/REAR LEDs cut off (turn off) when 12 Vdc is applied
their control wires (Table 9 on page 20)
1
X
FRONT/REAR LEDs enable (turn on) when 12 Vdc is applied
to their control wires
2
X
Keep in OFF position
3
X
Keep in OFF position
4
X
SignalMaster, Internal control (factory default)
4
X
SignalMaster, External control
5
X
Cycle forward through the selection of flash patterns
5
X
Cycle backward through the selection of flash patterns
6
X
Operation Mode
6
X
Program Mode
7
Switch for INTERSECTION operational settings (Table 11 on page 24)
8
Switch for INTERSECTION operational settings (Table 11)
Selecting External SignalMaster Control
Internal control is the factory default setting. See Table 10.
To change to External control:
1.
Unplug the 24-pin harness from the Serial Interface Module.
2.
Move Switch 4 on SW-2 to the up (OFF) position.
3.
Plug the 24-pin harness into the Serial Interface Module.
