Serial Port Connector (10-1 Pin Com); Bmc Connector (16-Pin Bmcconn); Ambient Thermal Sensor (2-Pin Trpwr) - Asus Motherboard P5MT-S Owner's Manual

7. Serial port connector (10-1 pin COM2)
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 serial port module is
purchased separately.
P5MT-S Serial Port2 (COM2) Connector
8. BMC connector (16-pin BMCCONN1)
This connector is for the ASUS server management card, if available.
P5MT-S BMC Connector
9. Ambient thermal sensor (2-pin TRPWR1)
If you want additional thermal monitoring, connect the thermal sensor
cable with thermistor (of 1ºK or at 25ºC, B=3435) to this connector.
P5MT-S TRPWR Connector
2-28
COM2
PIN 1
BMCCONN1
GND SYS-THEAMAL2
TRPWR1
Chapter 2: Hardware information