In an electropneumatic brake system for a towed vehicle having at least two axles, such as a drawbar trailer, one axle is assigned a first modulator at least with an anti-lock function and another axle is assigned a second modulator at least with an anti-lock function and an additional function. Both modulators are connected to a reservoir pressure, and both modulators load wheel brake cylinders via brake pressure lines. The second modulator is connected to a control line and the first modulator has a connector for a control line. A control line leads from the connector for the control line on the first modulator to the brake pressure line between the second modulator and at least one of its wheel brake cylinders.