NR Electric RCS-9698G, Инструкция по эксплуатации

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Chapter 3 Hardware Structure and Operation Theory
NR ELECTRIC CO., LTD. 15
CPU
NET1
NET2
TX
RX
TX
RX
1
2
3
4
5
6
7
8
9
Figure 3.3-3 CPU board with 2 electrical ethernet ports and 2 optical fiber ports
The description of the pins of the 2 kinds of CPU boards is listed in the following table.
Table 3.3-2 Pin description of CPU board
Pin Description
NET1 Ethernet port 1.
NET2 Ethernet port 2.
NET3
（
In the first kind of CPU
board
）
In the first kind of CPU board, it is an
electrical ethernet port.
TX and RX
（
In the second kind of
CPU board
）
Ethernet port 3.
In the second kind of CPU board, it is
an optical fiber port.
NET4
（
In the first kind of CPU
board
）
In the first kind of CPU board, it is an
electrical ethernet port.
TX and RX
（
In the second kind of
CPU board
）
Ethernet port 4.
In the second kind of CPU board, it is
an optical fiber port.
1 Not connected.
2 Not connected.
3 Not connected.
4 SYN+
EIA RS-485 standardized interface for
clock synchronization, PPS or IRIG-B
signals are optional. Whether PPS or