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"MASTER" (Master/Slave) LED:
When "On", it indicates the TC3420 is set as Master.
When “Off", it indicates the TC3420 is set as a Slave.
When "Flashing", it indicates the IP is set to the factory default. Need to power cycle the unit
and set the DFLT dip switch back to the up position to make default IP effective.
“DFLT" LED (Default):
When lit, it indicates the unit's IP is set to factory default:
Master: IP: 192.168.254.123,
Subnet Mask: 255.255.255.0
Slave: IP: 192.168.254.124,
Subnet Mask: 255.255.255.0
“BRD” LED
indicator: When lit or flashing,
On the Master unit, it indicates it is receiving messages from the connected device (Host/Polling
device) and transmitting the messages to all Slave units. Also, when SIG GEN is enabled on the
Master, “BRD” will flash.
On any Slave unit, it indicates it receives messages from the Master.
“RSP” LED:
When lit or flashing;
On the Master unit, it indicates it is receiving messages from a Slave unit.
On Slave units, it indicates it is receiving messages from the connected devices (RTU/PLC).
Also, when SIG GEN is enabled on the Slave, “RSP” will flash.
