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Signaling System
Introduction to the Digitrax SE8C
The Digitrax Signaling System is organized around the concept of “security elements” which are similar to what U.S. prototype railroads call “plants.” The Digitrax SE8C signal decoder displays aspects for up to 32 heads for 8 individual security elements (plants) using either a LocoNet Throttle or a computer with compatible software. When used with associated occupancy detectors and compatible software, the SE8C can be set up to protect the turnout as shown by the example below. The SE8C decodes switch commands from a throttle or associated software so that the appropriate aspects are displayed on the signal heads.

Each security element is made up of three legs designated A, B, & C. Every piece of track on your layout can be broken down into security elements to describe how each detection section connects to the other sections on your layout.

A to B, A to C, B to A & C to A are the only possible connections, based on turnout position. B to C is not possible.

Occupancy detection is required for any signaling system to function. Occupancy detection inputs can be handled by any LocoNet compatible occupancy detector (Any BDL16 Series Occupancy Detectors or BD1 Occupancy Detectors used with DS54s will work).

Transponding is not needed for the Digitrax Signaling System.

The SE8C sends its output to the signal driver to drive the signal heads. Each SE8C has 8 sets of signal drivers, each capable of driving a set of signal masts. Each set of masts can have up to four heads and each head can have up to four different lamps or a multi-color searchlight. The heads may be on separate single masts, dual masts, or gantries. Each mast has its own signal driver. In practice, each set of signal masts usually corresponds to the track controlled by a single security element.

The SE8C signal decoder and occupancy detector are connected to LocoNet so that all security elements on the layout can communicate with each other as the occupancy of each detection section of track changes. Since the Digitrax Signal System communicates through LocoNet, it does not need DCC to work. The SE8C signal decoders and BDL16 Series occupancy detectors can communicate directly with other LocoNet devices on the layout, they do not need a command station for this communication. This means that they can be used on non LocoNet DCC systems and DC systems where LocoNet is added to support signaling.

The SE8C lets you control signals manually from your Digitrax throttles or automatically through LocoNet compatible computer software such as Railroad & Company, WinLok and others.

For more information on the SE8C and accessories please click here to visit the Digitrax web site.

Item Description Image MSRP Our $ Part #
BD4 QUAD OCCUPANCY DETECTOR
Cost Effective occupancy detection for 4 detection sections
Outputs for panel mounted LEDs to display occupancy
Detects any powered locomotive
Detects un-powered rolling stock equipped with resistor wheel sets
Transmits occupancy information to your LocoNet System using DS45 or SE8C (sold separately).

$29.95 $23.96 DIG-BD4
BD4 QUAD OCCUPANCY DETECTOR
Cost Effective occupancy detection for 16detection sections
Occupancy detection for 16 sections
Outputs for LEDs to indicate local detection section occupancy and zone power status on a panel mount display
3 Amp capacity per detection section
Transits Occupancy information over LocoNet
Supports SuperSonic decoder operations
Detects any powered locomotive
Detects any un-powered rolling stock equipped with resistor wheel sets
Plug 'N Play with Digitrax DCC
Configurable with most other DCC systems
Automatically checks layout status when used in conjunction with a computer
Improved Rail Sync Sampling for reliable operation
Transponding with the addition of one or two RX4 allows for 8 transponding sections
Transponding decoders are detected by the RX4s and the information is fed back to LocoNet
Transponding allows you to read back CV values of decoders equipped with transponders
Note: External power supply is needed. PS14 (sold separately) or equivalent is recommended. Multiple BDL16 series detectors can be powered from the same power supply as long as 100mA is provided for each BDL16 series detector.

$149.95 $119.99 DIG-BDL168
RD2 REMOTE SENSING DIODE FOR BDL168
RD2 Remote Sensing Diodes for BDL16 & BDL162
$9.99 $7.99 DIG-RD2
SE8C Signal Decoder
New: September 2003
$125.00 $100.00 DIG-SE8C
RX4 4-Zone
Transponding Receiver Add-on for BDL Series Detectors

The RX4 is a 4 zone transponder detector for use with Digitrax occupancy detection systems. The RX4 enables you to not only see what blocks are occupied but also identifies what is there.

•Know the layout zone location of transponder-equipped locos and rolling rolling stock
•Each RX4 handles 4 transponding zones
•Low current pulses wont interfere with DCC decoders or other track signals
•Can be used in conjunction with other means of occupancy detection to customize your layout's feedback system
•Works with most DCC compatible systems
•Can be adapted to work with other command control systems as well
•Location and identification information is updated continuously on LocoNet
•Location Information can be configured to be displayed on a track diagram
•No modification of existing equipment required, just add the transponding components and you're ready to go.
•More features than any other method of "bi-directional" communication.
Note: RX4s must be used in conjunction with a Digitrax BDL16 series occupancy detector to function.
$49.95 $39.96 DIG-RX4

TF4 Dual DCC Function Decoder with Integrated Transponding
TF4 Quad DCC Function Decoder with Integrated Transponder

•Four 125mA (250mA peak) function output for lights or other functions
•Functions can be turned on/off using F0-F12
•Supports both 2 digit and 4 digit addressing
•Programmable from DCC compatible equipment
•Configurable Strobe feature lets you simulate flashing lights like FRED, Strobes, Mars Lights, etc. on the yellow and white leads
•Standard On/Off Function operation available on green & violet leads.
•Compatible with Digitrax DCC Transponding Systems
•Approximate size: 0.461” x 0.31” x 0.161” (11.7mm x 7.8mm x 4.1mm)

 

$20.95 $17.80 DIG-TF4

TL1 Single DCC Function Decoder with Integrated Transponding
TL1 Single DCC Function Decoder with Integrated Transponder


•Your TL1 can be used as:
1. Function only DCC decoder with transponding
2. Digitrax Transponder
3. Function only DCC decoder without transponding.
•Single 125mA (250mA peak) function output for lights or other functions
•Function can be turned on/off using F0, F1, F2, F3, or F4
•Supports both 2 digit and 4 digit addressing
•Programmable from DCC compatible equipment
•Configurable Strobe feature lets you simulate flashing lights like FRED, Strobes, Mars Lights, etc.
•Compatible with Digitrax DCC Transponding Systems
•Approximate size: 0.461” x 0.31” x 0.161” (11.7mm x 7.8mm x 4.1mm)

 

$16.95 $14.40 DIG-TL1
Signal Mast Base Kit
Includes 3 Signal Masts
AVAILABLE WINTER 2003
$14.95 $12.00 DIG-SMBK
Signal Driver Cable Kit
Materials for making 2 signal driver cables, includes 20' of 10-wire ribbon cable and 8 10-pin sockets
AVAILABLE WINTER 2003
$19.99 $16.00 DIG-SDCK
Signal Mounting Hardware Kit
Under layout mounting hardware for signal driver cables and their sockets. 6 metal signal straps and 6 signal spacers
AVAILABLE WINTER 2003
$9.99 $8.00 DIG-SMHK
Terminal Strip Mounting Kit
2 Terminal strip boards with resistors for easy installation. Each strip can handle from 1 to 4 signal heads
AVAILABLE WINTER 2003
$14.95 Sold Out DIG-TSMK

 


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