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T
HE
ROCO L
IGHT
S
IGNAL
M
ODULE
10777
The ROCO light signal module is a strong receiver unit for light signals using either miniature
bulbs (16 volts) or light diodes (LED). Signals using LEDs must have a common positive
input and be designed for using a 16 Volt power supply transformer as for instance the light
signals made by Viessmann and other manufactures. The signal module is controlled from the
Turnout Keyboard 10770 or the RouteControl 10772 (USA: 10872) via turnout addresses. The
Lokmaus
®
2/Power mouse™ cannot control the Signal Module (via Loc addresses).
The advantages
þ
the signal module controls multiple aspect signals with one key activation
þ
integrated train control
þ
smooth cross-fade between the signal aspects
þ
simple wiring
þ
control logic for addition of a brake activator is included
þ
attractive price
þ
NMRA/DCC compatible, therefore can also be used with other compatible systems
(Lenz, Arnold, etc.)
T
HE
T
ECHNOLOGY
The signal module generates the different signal aspects for two light signals (without their
own twin-coil mechanism) through its internal logic. Therefore no additional relays or compli-
cated wiring are required. The relay necessary for train control is built in as well. Based on the
four possible aspects of the signal – three of them (referring to German railways) Hp1, Hp2
and Sh1 – will indicate clear track. Hp00 activates the stopping for the signal.
With the Turnout Keyboard10770 or the RouteControl 10772/10872 you can call up the four
aspects with a single key command. To keep the signal module compatible with already exist-
ing digital controls the signal aspects are called up with ‘normal‘ digital commands for turnouts
and signals. Therefore a signal must be controlled by two addresses and the entire module
four addresses. A signal module which is programmed for addresses 5 through 8, the first
signal responds to address 5 and 6 and the second to addresses 7 and 8.
If you want to set the first signal this means:
– address 5 red: Hp 00, aspect double red, no passing or switching (shunting);
– address 5 green: Hp 1, aspect green, passing with allowed route speed;
– address 6 green: Hp 2, aspect yellow-green, passing with speed limitation
– address 6 red: Vr 1, aspect red and 2x white, switching (shunting) permitted.
The signal module fits perfectly with its four addresses into the normal address sequence of
the turnout decoder.
The signal module is NMRA/DCC compatible; therefore it can be used with other NMRA/DCC
systems such as Lenz or Arnold. In this application too it will occupy four turnout addresses
for its two light signals. This also applies even if only a two-aspect signal is used, it requires two
addresses because the additional signal aspects could be generated.
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HE
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ONNECTION
The signal module is supplied with the necessary three- and eight-pole flat connectors. It can
be connected to the track output of an amplifier or booster. At the three-pin flat connector
the two outer contacts marked “J” and “K” are used. The polarity is not relevant (the polarity
is not indicated at “track out” on either booster or amplifier). The module receives its power
and digital information from these terminals. The signals are connected to the eight-pin flat
connectors. Depending on the prototype signal the miniature bulbs are connected to the ter-
minals. Illustration 1 and 2 show the connections of different German signals. Cable connec-
tions between signal bulbs have been provided at some signals to be able to reproduce signal
aspects of many different railway companies.
