Furuno FAR-2827 Service Manual

7.3 Processor Unit: RPU-013
7-70
7.3.7 NET-100 board (03P9332)
LAN is based on 100BASE-Tx standard.
NET-100 is the interface for I/O signals of the SPU board, pictures on the radar screen,
operating signals of control unit and LAN. CU-200 also has the same NET-100 board
and card data is exchanged through the LAN.
Fig. 7.3.28 Block diagram of NET-100
The LAN cable between FAR-2xx7 radars, and between FAR-2xx7 and CU-200 is a
cross cable. When HUB-100 is used for the connection, either a straight cable or cross
cable can be used. All the ports of HUB-100 are provided with Auto-MDIX feature and
automatically recognize cable types.
Fig. 7.3.29 Schematic diagram of LAN
U1
LAN I/F
U2
EEPROM
LAN
J302
J207
CR2
(DATA)
CR1
(LINK)
U3
25MHz
Tx data
Rx data
ADD. / DATA
1. Tx P
2. Tx N
3. Rx P
6. Rx N
SPU p.c.b
LAN
No.1 FAR-2xx7
NET-100
SPU p.c.b
LAN
LAN
No.2 FAR-2xx7
NET-100
SPU p.c.b
No.x FAR-2xx7
NET-100
SPU p.c.b
LAN
No.x FAR-2xx7
NET-100
CARD CPUp.c.b
LAN
CU-200
NET-100
SPU p.c.b
LAN
No.x FAR-xx7
NET-100
CARD CPUp.c.b
LAN
LAN
LAN
CU-200
HUB-100
NET-100
8 ports
100Base-Tx
100Base-Tx
100Base-Tx
100Base-Tx
100Base-Tx
cross cable
cross cable
cross cable
or
straight cable
cross cable
or
straight cable
INS

Furuno FAR-2827 Specifications

General

Brand	Furuno
Model	FAR-2827
Category	Marine Radar
Language	English