Asus AP2400R-E1 - Manual (Page 73)

4-15 ASUS AP2400R-E1 2U barebone server
12. Wake-On-Ring Connector (2-pin WOR)
This connector connects to internal modem cards with a Wake-On-
Ring output. The connector powers up the system when a ringup
packet or signal is received through the internal modem card.
For external modems, Wake-On-Ring is detected through the COM
port.
13. Hard disk activity LED (2-pin IDELED)
This connector supplies power to the hard disk activity LED. The read
or write activities of any device connected to the primary or secondary
IDE connector cause this LED to light up.
PR-DLS533
PR-DLS533 Wake-On-Ring Connector
WOR
Ring# Ground
2 1
PR-DLS533
- +
PR-DLS533 IDE Activity LED
IDELED
TIP: If the case-mounted LED does not
light, try reversing the 2-pin plug.