Moxa TCC-120I [16/18] Step 2 attach the power supply
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Moxa TCC-120I [16/18] Step 2 attach the power supply

Moxa TCC-120I [16/18] Step 2 attach the power supply
12
STEP 2: Attach the Power Supply
The TCC-120/120I is powered by an
external 12
-48 VDC power supply.
To connect to the power supply, run
two wires from the V+ and V
-
terminals, on
the TCC-120’s
3
-connector terminal block, to the
DC power supply, as shown in the
figure
on the left.
Once the power supply is connected
to its power source, the PWR LED
located on
the TCC-120’s top panel
should be illuminated in red.
NOTE
The TCC
-120/120I provide reverse power protection. The
products will automatically detect which power wire is negative,
and which is positive.
STEP 3: Wire the Terminal Block
There are two wiring options available for connecting to the TCC-120/120I’s
RS-422/485 terminal block.
2-wire
When using the 2
-wire (for
RS
-485) wiring option, you will
need to connect three wires from
each of
the TCC-120/120I’s
RS
-
422/485 terminal blocks to the
opposite connections. Connect
from R+/D+ to Data+, from R
-/D
-
to Data
-, and from SGND to SGND.
4-wire
When using the 4
-wire (for RS-
422
or 4
-wire RS-485) wiring option,
you will need to connect five wires
from each of the TCC
-120/120I’s
RS
-
422/485 terminal blocks to the
opposite connections. Connect
from R+/D+ to Tx+, from R
-/D-
toTx
-, from T+ to Rx+, from T-
to
Rx-, and from SGND to SGND.

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