Siemens SINUMERIK 840D sl Equipment Manual page 100

Connectable components
9.2 PP 72/48D PN
• The 3 plug-in connectors for the digital inputs and outputs are 50-pin terminal posts for
connecting ribbon cables.
• Terminal strip converters can be used, or the direct connection of distribution boards, for
example, is possible.
An external power supply unit (24 V DC) is required to supply the module and the digital outputs.
Illustration
Figure 9-7
100
PP 72/48D PN I/O module
Equipment Manual, 10/2020, 6FC5397-1EP40-6BA1
NCU 7x0.3B PN