Siemens ESM - Manual (Page 48)

Interfaces, Displays and Operator Controls
Industrial Ethernet OSM/ESM
44 C79000-Z8976-C068-10
4.1 ITP/TP Ports
This chapter describes the properties of ITP and the TP ports.
4.1.1 ITP Ports
In the ITP variant of the OSM/ESM, the DTEs are attached via sub-D female
connectors. The casings of the connectors are electrically connected to the casing
of the OSM. A screw locking mechanism holds the connectors firmly in place.
RD + Pin 1
TD + Pin 5
Pin 6 RD -
Pin 7 n.c.
Pin 8 n.c.
Pin 9 TD -
n.c. Pin 2
n.c. Pin 3
n.c. Pin 4
Figure 21: Pinout
4.1.2 TP Ports
With OSM TP62, OSM TP22, ESM TP40, and ESM TP80 modules, the DTEs are
connected via RJ-45 jacks with MDI-X assignment (Medium Dependent Interface
Crossover).