8 Connector Pin Assignment
8.1 Operation of the Terminal Connectors
8.1.1 Spring-cage Connection
The  individual  conductors  are  fixed  in
the  terminal  by  means  of  spring-cage
connection. In order to plug and unplug
a conductor proceed as follows:
▶ Push a screwdriver  into  the  desig‐
nated  groove  above  the  chamber
to operate the spring-cage connec‐
tion as shown in the figure.
▶ Put  the  conductor  into  the
chamber  /  remove  the  conductor
from the chamber.
▶ Release the screwdriver.
Solid wires or conductors with ferrules can be put directly into the chamber
without the help of a screwdriver.
8.1.2 Push-in Technology
Terminals using the push-in connection
technology  (PIT)  work  on  the  pressure
spring principle:
The  contact  spring  presses  the  cable
against the conducting copper bar. The
special  spring  profile  allows  direct  and
tool-free  wiring  of  solid  and  stranded
cables  previously  assembled  with
ferrule or compressed conductor ends.
▶ When the cable is inserted into the
clamping  unit  the  spring  opens
automatically.
▶ To open the clamp and loosen the
cable use a screw driver.
8.2 ID switch
➮ Set the address for the module by means of the address selection switch.
16 adresses are available: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
The addresses of several  devices in a system must be different from each
other to ensure that they can be identified by the software.
W
Connector Pin Assignment
Drive Amplifier SD2B / SD2B plus - Hardware Description 39
8