Hirschmann MACH 1020, User Manual

Page: 42 / 64

42
Installation MACH1000
Release 02 03/2013

10/100 Mbit/s twisted pair connection
10/100 Mbit/s ports (RJ45 socket) enable the connection of terminal
devices or independent network segments according to the IEEE 802.3
100BASE-TX and 10BASE-T standard.
These ports support:
 Autonegotiation
 Autopolarity

Autocrossing (if autonegotiation is activated)
 100 Mbit/s half-duplex mode, 100 Mbit/s full duplex mode

10 Mbit/s half-duplex mode, 10 Mbit/s full duplex mode
Delivery state: autonegotiation activated
The socket housing is electrically connected to the front panel.
Pin assignment of the RJ45 socket:

One line pair: pin 3 and pin 6

One line pair: pin 1 and pin 2

Remaining pins: not used.
Figure 18: Pin assignment of a TP/TX interface in MDI-X mode, RJ45 socket
Note: In substation applications, the RJ45 ports are used to connect to
additional communication devices such as routers or telecommunication
multiplexers that are installed in close proximity to the device (i.e. less
than 3 meters away). It is not recommended to use these ports for
connection to field devices across longer distances which could cause a
significant increase in the ground potential (Ground Potential Rise GPR,
i.e. more than 2500 V).

10/100/1000 Mbit/s twisted pair connection
1000 Mbit/s twisted pair ports (RJ45 sockets) facilitate the connection of
terminal devices or independent network segments according to the IEEE
802.3-2000 (ISO/IEC 8802-3:2000) 1000BASE-TX standard.
These ports support:

Autonegotiation
 Autopolarity

Autocrossing (if autonegotiation is activated)
 1000 Mbit/s full duplex
 100 Mbit/s half duplex, 100 Mbit/s full duplex,

10 Mbit/s half duplex, 10 Mbit/s full duplex.
n.c. 8
n.c. 7
TD- 6
n.c. 5
n.c. 4
3 TD+
2 RD-
1 RD+