Table of Contents
Advertisement
2.4 Floppy Disk Interface (CN4)
The CN4 connector is routed to the 1-P3 connector for connecting
floppy disk drives. With Advantech's 6U-sized processor module,
users can connect floppy disk drives to the backplane, instead of
direct cabling to the processor board. This shortens the MTTR for
replacing the processor board. Up to two floppy disk drives can be
connected to CN4.
2.5 Alarm Board Interface (CN2)
The 20-pin connector CN2 is an interface for an external monitoring
and alarm module, such as MIC-3920/MIC-3921, which monitors the
system conditions. It contains bus voltages 3.3V, 5V , 12V and -12V,
and utilizes four fan tachometer signals and an on-off control signal.
Table 2-6. CN2 Connector Pin Assignments
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
#: Low active
1 4
MIC-3451/MIC-3451H User's Manual
Pin Assignment
FAN2
FAN1
FAN4
FAN3
N/C
POWER_FAIL#
SDCLK
GPI02
SDDAT
GPI01
N/C
PSON#
GND
GND
PRST#
+12V
-12V
+3.3V
+5V
+5V
1
2
3
4
5
6
7
8
9
1 0
11
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
2 0
CN2 Connector
Pin Locations
Advertisement
Table of Contents
