Wago, 750-963, 750 Series, CANopen Fieldbus Connector, With 9-pole D-sub Socket,

This fieldbus connector links a CANopen device to
a CANopen line.

The fieldbus connector has the following features:

• Two horizontal cable entries for both input and output
• Fast and maintenance-free CAGE CLAMP^® connection – a locking slide
  keeps the clampling unit in its open position
• Externally operable switch to activate or deactivate the network terminating resistor

For the first and last station on the bus, the switch must be set
to “ON” (Terminating resistor activated)
Switch setting to “OFF” for downstream bus stations
(Terminating resistor deactivated)