User's Manual

1-18
Chapter 1: Product introduction
11. Serial port connector (10-1 pin COM)
This connector is for a serial (COM) port. Connect the serial port module cable to this
connector, then install the module to a slot opening at the back of the system chassis.
The COM module is purchased separately.
B85M-F
B85M-F Serial port connectors
PIN 1
COM
RXD DTR DSR
CTS
DCD
TXD
GND
RTS
RI
12. TPM connector (20-1 pin TPM)
This connector supports a Trusted Platform Module (TPM) system, which can securely
store keys, digital certicates, passwords, and data. A TPM system also helps enhance
network security, protects digital identities, and ensures platform integrity.
The TPM module is purchased separately.
B85M-F
B85M-F TPM Connector
PIN 1
TPM
SB_SUS_STAT
GND
+3VSB
NC
LAD0
+3V
LAD3
PCIRST#
FRAME
PCICLK
NC
GPIO
SERIRQ
NC
GND
LAD1
LAD2
NC
GND