Siemens SIMATIC TIWAY 1 Manual De Usuario
THE TIWAY I NETWORK PORTS
UNILINK HOST ADAPTER
4-2
USER MANUAL
4.1.1
Local Line Interface
Port 1
Port 2
Port 3
Port 4
Local Line Interface Ports
I/O
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Figure 4–1
Local Line Interface Ports
The Local Line interface to TIWAY I is a female 9-pin “D” connector shown as
Ports 1 and 2 in Figure 4–1. Port 1 is the primary network port. Port 2 provides
support for redundant media transmission when Ports 1 and 2 are connected to
a redundant twisted pair cable network (discussed further in Paragraph 4.2 ).
The pin assignments for these ports are given in Table 4–2.
Ports 1 and 2 in Figure 4–1. Port 1 is the primary network port. Port 2 provides
support for redundant media transmission when Ports 1 and 2 are connected to
a redundant twisted pair cable network (discussed further in Paragraph 4.2 ).
The pin assignments for these ports are given in Table 4–2.
Table 4–2
Local Line Connector Pin Assignments
Pin
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
Name
Sheild
LLM+
LLM–
Description
Reserved
Reserved
Cable shield and signal common
Reserved
Reserved
Positive biased signal line
Reserved
Reserved
Negative biased signal line
Reserved
Cable shield and signal common
Reserved
Reserved
Positive biased signal line
Reserved
Reserved
Negative biased signal line