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AS1021M-T2R User's Manual
Extra USB Headers
F o u r a d d i t i o n a l U S B 2 . 0 h e a d -
ers (USB2/3) are included on the
serverboard.
These may be con-
nected to provide front side access.
A USB cable (not included) is needed
for the connection. See the table on
the right for pin defi nitions.
Serial Ports
The COM1 port is located on the I/O
backplane. COM2 is a header (see
layout diagram for location). Refer
to the table on the right for pin defi ni-
tions.
Fan Headers
The H8DMR-i2 has fi ve fan headers,
which are designated FAN1 through
FAN5. See the table on the right for
pin defi nitions.
Note: when using active heatsinks
(those with fans), connect the heatsink
fans to the nearest fan header.
LAN1/2 (Ethernet Ports)
Two Gigabit Ethernet ports (desig-
nated LAN1 and LAN2) are located
on the I/O backplane. These Ethernet
ports accept RJ45 type cables.
Extra Universal Serial Bus Headers
Pin Defi nitions (USB2/3)
USB2
Pin #
Defi nition
1
+5V
2
PO-
3
PO+
4
Ground
5
Key
Serial Port Pin Defi nitions
(COM1/COM2)
Pin #
Defi nition
1
DCD
2
RXD
3
TXD
4
DTR
5
Ground
Note: NC indicates no connection.
Fan Header
Pin Defi nitions
(FAN1-5)
Pin#
Defi nition
1
Ground (Black)
2
+12V (Red)
3
Tachometer
5-16
USB3/4
Pin #
Defi nition
1
+5V
2
PO-
3
PO+
4
Ground
5
No connection
Pin #
Defi nition
6
DSR
7
RTS
8
CTS
9
RI
10
NC
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