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AS1021M-T2/1021M-82 User's Manual
Fan Headers
The H8DMR-82/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.
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.
JLAN1/2 (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.
Note: NC indicates no connection.
Serial Port Pin Defi nitions
(COM1/COM2)
Pin # Defi nition Pin # Defi nition
1CD 6DSR
2RD 7RTS
3TD 8CTS
4 DTR 9 RI
5 Ground 10 NC
Fan Header
Pin Defi nitions
(FAN1-5)
Pin# Defi nition
1 Ground (Black)
2 +12V (Red)
3 Tachometer
Extra USB Headers
Four additional USB2.0 head-
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.
Extra Universal Serial Bus Headers
Pin Defi nitions (USB2/3)
USB2
Pin # Defi nition
USB3/4
Pin # Defi nition
1 +5V 1 +5V
2 PO- 2 PO-
3 PO+ 3 PO+
4 Ground 4 Ground
5 Key 5 No connection