Connecting additional TMCC products in a “daisy chain”
Y
ou may choose to power additional TMCC products using the same power supply and
Command Base by creating a “daisy chain,” or a series of TMCC units wired in succession.
Refer to Figure 2 and follow these steps as you connect the BPC to the next TMCC product.
When in a daisy chain, the L.E.D. on the BPC will flash for a tenth of a second to
indicate that the BPC is receiving commands for another TMCC product. The L.E.D.
will stay on for half of a second to indicate that the BPC has received a command with
an address it controls.
Power connections for additional units
1. Attach one wire to the additional Power U terminal on the BPC unit and
connect it to the Power U terminal on another product.
2. Attach another wire to the additional Power A terminal on the BPC unit
and connect it to the Power A unit on another product.
3. Add additional products in the same manner, connecting the Power U
terminals and the Power A terminals.
COMM connections for additional units
1. Attach the red wire to the DAT terminal of the BPC unit and connect it to
the DAT terminal of the next TMCC product. (Red wire)
2. Attach the green wire to the COM terminal of your BPC unit and connect it
to the COM terminal of the next product. (Green wire)
3. Add additional products in the same manner, connecting the DAT terminals
and the COM terminals.
Wiring Your Block Power Controller
6
LED
COMMAND
BASE
A/C
POWER
SUPPLY
A
U
Figure 2. TMCC daisy chain connections
Power/A
Common/Ground/U
COMM (Green Wire)
DAT (Red Wire)
Comm Connections
Power Connections
