
Appendix B - Cabling, Hardware, & Electrical
User Guide 299
Rear Panel LEDs
The Advanced Secure Console Port Server rear panel has connectors (serial, console and
Ethernet) with some LEDs that have the following functionalities:
Ethernet Connector
Console Connector
Serial Connector
Col
(collision)
Shows collision on the LAN every time the unit tries to transmit
an Ethernet packet.
DT/LK
(data transaction
/link state
DT flashes when there's data transmitted to or received from the
LAN. It's hardware-controlled. LK keeps steady if the LAN is
active. The green LED is Data Transaction activity and the
yellow one is LinK state.
100 If 100BT is detected the LED lights on. If 10BT is detected it
turns off.
CP CPU activity. It flashes at roughly 1 second intervals.
P1 Power supply #1 ON.
P2 Power supply #2 ON.
LK DTR. It's software-controlled.
DT Data transmitted to or received from the serial line. It's hardware-
controlled.
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