SICOM3004/SICOM3006 User’s Manual 201105
- 16 -
Figure 3‐2 Hardware Structure of SICOM3006
FE1‐FE2: 2 10/100Base‐TX ports
FE3‐FE6/FX3‐FX6: 4 10/100Base‐TX ports or 4 100Base‐FX ports (optional)
3.2
System
Explanation
１
.
Power
3.3V/3A power is supplied to SICOM3004/SICOM3006 by motherboard through pins. To
guarantee stable and reliable power input, the effective value of input power ripple is less
than 50mv and starting current is more than 3A.
２
.
LED
LEDs include system operation LED (CPURUN1), master and salve LED (RUN2), 2 alarm LEDs,
4 (SICOM3004) or 6 (SICOM3006) LINK LEDs and SPEED LEDs for ports
３
.
Network management
The network management CONSOLE port is a RS232 serial port. Switch provides TTL
interface level to motherboard by pins. RS232 interface circuit is implemented on
motherboard.
４
.
Alarm Output
OEM board has ring network fault self‐inspection and alarm functions. When network
breakdown, poor contact, communication problem and other failures happen in the ring
network, OEM board is able to automatically locate the fault and send alarm by software and
hardware contacts. In hardware, it is judged by the signal providing by pins. When the uplink
port is under normal connection, the corresponding alarm signal “ALARM1” or “ALARM2”
outputs high level; when the connection is abnormal, the corresponding alarm signal
“ALARM1” or “ALARM2” outputs low level.
５
.
Pin definition
SICOM3004 adopts one 2
×
16, 2.54mm‐spacing two‐row pin (J5) and one 2
×
6,
2.54mm‐spacing two‐row pin (J6). SICOM3006 adopts one 2
×
16, 2.54mm‐spacing two‐row
pin (J5) and two 2
×
6, 2.54mm‐spacing two‐row pin (J6, J7).
