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Supports Async RS-232 Signals
Web-Based Network/Serial Settings
17 Diagnostic LEDs
Standalone or Rackmount
The TC3420 is a multi-poll Ethernet converter designed with a capability for a multicast topology. It converts
RS-232, (RS-422, RS-485 or Analog (2- or 4-wire)* ) asynchronous data to TCP/IP packets for multicast
transmission between a Master TC3420 and remote TC3420 Slave units over an Ethernet Network, as shown
in Figure 1.
When connected to a SCADA host controller, the Master unit broadcasts poll messages to all the slave units.
The Remote Terminal Unit (RTU) connected to the Slave unit will response only to the poll with that RTU's
own specified ID (or address), which is embedded in the poll message. The communication between the
Master and Slave is transparent to protocol and data rate; transmission can be full duplex provided only one
RTU responses at a time.
Compatible with all popular Ethernet Switches and it supports full duplex data rates up to 57.6 Kbps. A Web-
based user interface (i.e. browser) is provided to view or change both network and serial settings.
The TC3420 supports RS-232 interfaces (TxD and RxD). Seventeen LEDs are provided on the front panel
for all broadcast, response signals, Activity, Power and Link.
Power is 12VDC, optional 24VDC, -48VDC or 115/230VAC with an external power cube. Electrical
connectors are DB-9F, 10Base-T connectors are RJ-45F.
*Note: For future release.
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