User Manual
4
A. INTRODUCTION
Prototype signal systems are one of the most familiar trackside details to be incorpo-
rated on miniature rail systems. Ever since modern light signals were introduced by
railroads in the mid-1920's, model train manufacturers have been eager to offer them
as the quintessential layout accessory. While capturing the appearance of the real
thing, operation, in most cases, has been far less than prototypical...until now.
The Atlas Model RR Signal System represents a quantum leap in model signal opera-
tion and design. By following the simple installation instructions, the realistic signal
structures will provide you with prototypical operation that can be tailored to any lay-
out. The Signal Control Board (SCB) is the "heart" of the system. The Signal Control
Board (SCB) is capable of three operating options:
•
Stand-Alone Signal Operation - Each signal is completely independent and
gives a Red-Yellow-Green aspect operation. The yellow aspect is timed for eight sec-
onds. The signal turns red when a train enters the block.
•
Integrated Operation - Each Signal Control Board (SCB) is connected togeth-
er and the Red-Yellow-Green aspects are controlled by the blocks and signals in
front of and behind your train. Hook-up between signals is accomplished easily with
Atlas Model Signal Cables (Items #230-232), pre-packaged in lengths of 7', 15'
and 25'.
•
Approach-Only Signal Operation - On some prototype railroads, signals
are off until a train approaches. The Atlas Model RR Signal System has the provisions
to duplicate this operation.
3
NOTE: EACH SIGNAL TARGET REQUIRES ITS OWN SIGNAL CONTROL BOARD AND
ITS OWN BLOCK DETECTOR BOARD.
DOUBLE TARGET
The Double Target Signal is located at a diverging
route. This could be a junction, passing siding,
etc. The top target indicates normal speeds usual-
ly for the main line. The bottom target indicates
medium speeds usually for the diverting route.
For modelers who have a functioning layout with
a transformer, all that is needed to get started is
the Double Target, 2 Block Detector Boards, 2
Signal Control Boards, and wiring. The Custom
Signal Turnout Signal Controller (TSC-1 or 2) will
make the function easy to install. (Please visit
www.customsignals.com for more information)
N Scale HO Scale