Operating instructions

Passive Components for Electrical Networks
4-34
SIMATIC NET Tw isted-Pair and Fiber-Optic Networks
C79000-G8976-C125-02
4.6 Industrial Twisted Pair Sub -D Connectors
General
The Industrial Twisted Pair sub-D connectors correspond to the standards
MIL-C-24308 and DIN 41652. Due to its mechanical strength and its excellent
electromagnetic compatibility, this connector was preferred to the RJ-45 connector
recommended for 10BASE-T in IEEE 802.3.
Two versions of the connector are available:
S Preassembled (crimped)
S For assembly by the user
Design of the Connectors for User Assembly
The following sections describe only the connectors that can be assembled by the
user.
There are two versions of the Industrial Twisted Pair sub-D connectors for user
assembly:
S 9-pin connector with straight cable outlet and securing screws
S 15-pin connector with variable cable outlet (+30° ,0°,-30°) and securing bolts
Both connector types have a metal casing. The Industrial Twisted Pair cables are
connected to the connector pins using screw terminals, special tools are not
required.
For a detailed description of fitting connectors, refer to Section 7.9.