Supermicro SuperServer 5019C-M4L User Manual page 45

COM Header
There is one COM header (COM1) on the motherboard that can provide serial communication
support.
Standby Power
The Standby Power header is located at JSTBY1 on the motherboard. You must have a card
with a Standby Power connector and a cable to use this feature.
LAN Activity LED Connectors
There are two LAN Activity LED connectors on the motherboard. JLD1 enables the LED for
LAN3 and LAN4, while JLD2 enables LAN5
Network Interface Controller (NIC) LED cables here to display network activity.
Chassis Intrusion
A Chassis Intrusion header is located at JL1 on the motherboard. Attach the appropriate cable
from the chassis to inform you of a chassis intrusion when the chassis is opened.
COM Header
Pin Definitions
Pin# Definition Pin# Definition
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
4 DTR 9 RI
5 GND 10 N/A
Standby Power
Pin Definitions
Pin# Definition
1 +5V Standby
2 Ground
3 No Connection
LAN8 (not applicable in this system). Attach
–
LAN Activity LED
Connector (JLD1)
Pin Definitions
Pins Definition
1 3.3V Stby
2 LAN3 Active LED
3 3.3V Stby
4 LAN4 Active LED
Chassis Intrusion
Pin Definitions
Pin# Definition
1 Intrusion Input
2 GND
45
Chapter 4: Motherboard Connections