Table 33 - Led Indications On Ethernet Switch - Honeywell HC900 Installation And User Manual

Diagnostics and Troubleshooting -
Ethernet Switch indicators
LED
10Base-T port
XMT (upper LED)
LINK (lower LED)
178
Table 33 – LED Indications on Ethernet Switch
LED State/Color
Green (On/Off)
Green (On/Off)
NOTE: These LEDs indicate activity on the communication port, they are
controlled by hardware (PHY chip), not by software.
HC900 Process Controller Installation and User Guide
Description
On while a message is being sent from the Main
CPU; otherwise Off.
On while the Main CPU is receiving a message.
Remains On as long as host is present; Off
when the host is removed from the link.
Revision 19
06/14