ANNEX III Requirements applying to the measurement of the response time

Appendix 1 Examples of pneumatic simulators

3. Example of a simulator for electric control lines

ECL

=

Electric Control Line corresponding to ISO 7638:2003

SIMU

=

Simulator of Byte 3,4 of EBS 11 according to ISO 11992:2003 with output signals at start, 65 kPa and 650 kPa

A

=

Supply connection with shut-off valve

C2

=

Pressure switch to be connected to the brake actuator of the towed vehicle, to operate at 75 per cent of the asymptotic pressure in the brake actuator CF

CF

=

Brake cylinder

M

=

Pressure gauge

PP

=

Pressure test connection

TA

=

Coupling head, supply line

VRU

=

Emergency relay valve