NX-10 Expander Installation Guide
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LED indicators
Table 16. NX-590E TCP/IP module LED indicators
LED Description
DS1 Flashes each time the NX-590E has an opportunity to access the NX-10 bus. It should flash
about twice a second.
DS3 Flashes when it is waiting for a communication from the Ethernet module.
DS4 On when waiting for a reply from a NX-10 bus device.
DS5 Flashes when the NX-590E gets a packet from the Ethernet module.
DS6 On when the bus has a message to send to the network.
Note: DS3 - DS6 are off if the system is initialized, normal and waiting for a new event to report.
L1 (on SIM module) Flashes ON Ethernet Activity.
L2 (on SIM module) Steady ON when Ethernet Link is established with the 10BT cable.
DS2 The sixth LED is located toward the back of the board. It is used for hardware, and only
glows dimly when connected to the NX-10 control panel.
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