Digitrax SE74 Manual Download Page 3

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— 3 —

and 4= C-siding as shown in figures 2 and 3, on the cable S1 for the e.g. "left 

siding" example.

3.  Plug in the first SE1 test cable into the 10pin header marked "S1" with the 

cable brown/pin1 to the left, looking at the unit.  Plug the test mast in figure 

4 into a test cable empty 10-pin socket with the led side towards the SE74 

4. 

Default first SW address for Head A1 on cable S1 is the SE74 Base address 

253+4 = SW257.

5.  Head A1 is controlled by SW257/258 using T/C directions to select 4 aspects 

to display. Power ON the SE74 and issue a SW257 = C switch command.  

The upper 3 led head on the test mast is A1 and should now light GREEN.  

SW257 = T will set this head to RED. For yellow, make SW258 = T, and 

Flashing Yellow make SW258=C.   Head A2 is the DWARF/D lower test mast 

head at SW259/260.

6.  Re-plug the Test mast with its leds pointing 

away

 from the SE74.  Now 

SW261/262 control the lower head B-main and SW263/264 control the 

upper head C-siding. 

7. 

For a 

new

 BASE address, Head1 will be at the new Base SW 4.

8. 

SW1021/1022 allow Broadcast head setting in any head control method.

9. 

SE74 turnouts can be Broadcast setup by: turnout1=SW2041, through turn

-

out4=SW2044.

10. 

SW1024=C turns ON Aspect Exercise cycles, SW1024=T turns OFF. A double 

click of the ID button will toggle Exercise ON/OFF for just that SE74.

11. 

SW1023=C sets Night dim level, SW1023=T sets DAY brightness.

2.0 Advanced DT602 based SE74 configuration:

 

To perform 

these advanced features, a DT602 with SubVersion 0.9 or higher will be needed 
- see www.digitrax.com for the latest software IPL.

 

 

2.1  Setup SE74 DCC Aspect 

control mode:

  

A DT602 with IPL ver

-

sion 0.9 or later allows the DT602 to change 

from 'Switch' to 'Signal' DCC Aspect control 

for SE74's.  

1. 

To change an SE74 to use the nine DCC 

Aspect type controls for all 16 heads, set 

OPSW5= C. ( see section 4.0)

2.  On an updated DT602 press the Switch 

key, then the new "Signal" mode or C 

soft key. The Signal mode screen like 

that adjacent will be displayed.

3.  The current Head number will be dis

-

played, along with; RED, YEL, GRN and 

LUNAR head aspect choice soft keys to 

set as the primary head aspect.  

4. 

The head number will be GRAY and change to BLACK when a new Aspect 

key is sent to the head#.

5.  The 'Modify' soft key A will cycle the selected head between the current; as

-

FR

Right Throttle Active

sp 0  %

0003

0   

1   

2   3   4   5   6   7   8   9

Modify

Lunar

Head#:

0001

GRN flash

Left :    0002

<Rev sp0  %

Switch

RED

YEL

GRN

Summary of Contents for SE74

Page 1: ...y wink OFF every 2 secs as a product heartbeat showing the SE74 is operational Alternatively power from DCC feeder wires to the TKA B terminals 3 Plug in an active LocoNet to a SE74 RJ12 connector The...

Page 2: ...om SW257 on that control heads 1 16 consecutively with 2SW per head Each SE74 uses 36 total consecutive SW addresses 2 The SW257 264 settings control heads 1 A1 Main 2 A2 Dwarf 3 Main B DC in Complete...

Page 3: ...74 turnouts can be Broadcast setup by turnout1 SW2041 through turn out4 SW2044 10 SW1024 C turns ON Aspect Exercise cycles SW1024 T turns OFF A double click of the ID button will toggle Exercise ON OF...

Page 4: ...e ID and OPSW LEDs will blink alternately to show one Route can be set up Release the RTS button 2 Select a switch address on your throttle between 1 and 8 and issue the command direction for Closed T...

Page 5: ...in BOLD 5 OPSW s not in this table are reserved and should be kept at Factory default T settings for predictable operation 6 OPSW40 C will reset to Factory defaults on OPSW mode exit Table 1 SE74 OPSW...

Page 6: ...nnected to LocoNet this will occur as a SW message to make the change and notify the system it has occurred Wire to momen tary press on buttons for SW control 2 The pins SENS1 SENS2 SENS3 and SENS4 wi...

Page 7: ...means the 2nd SE74 SW aspect Base would need to be 17 or higher 5 Use the LH encoder knob to scroll up and down through the detected SE74 devices with an underline shown at the 2nd SE74 6 At the 2nd...

Page 8: ...suitable DT602 plugged into LocoNet press the Menu 3 4 keys to enter Route Editor menu If any SE74 is on LocoNet the DT602 will beep after about one second and show DS7x routes at the D soft key posit...

Page 9: ...e CV s ac tually each control 8 individual OPSW bits OPSW1 is ls bit of CV11 through OPSW8 as ms bit of CV11 5 The DT602 does not indicate to the SE74 when programming is complete After finishing CV c...

Page 10: ...n for wiring detail and are not installed on the PCB test mast 4 The 3 wire Searchlights of Figures 6 and 7 are common cathode version and allow Lunar lamps to be connected for all 4 heads on an SE1 c...

Page 11: ...features available 4 For 2 wire pulse solenoids e g a Kato N crossover just wire to R G termi nals in the polarity that operates as you need Do not run more than one solenoid device per SE74 pulsed R...

Page 12: ...ty to operate under and be in compliance with CFR 47 rules as administered by the Federal Communication Commission Digitrax believes any conscientiously installed equipment following guidelines in thi...

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