16
VC-Grid Safety and Installation Guide
Connecting additional devices to a VC-Grid chain
Drawing off combined data and DC power from the end of a chain
If you want to continue the hybrid link to carry 48 VDC power and a P3 video or DMX signal from the end of
a VC-Grid chain to other devices, connect a Martin Hybrid Adapter Cable, PCB to 4-pin female XLR, P/N
11840159, to the
OUT
connector of the last module in the chain.
Warning! If you draw off DC power from the end of a VC-Grid chain and connect additional devices,
respect the maximum safe power rating of the power source that you use to supply all the devices
with DC power. Calculate the power consumption of the VC-Grid chain, allowing 30 W per VC-Grid 8
x 8 25™ module, then add the power consumption of each device that you add to the end of the
chain. As soon as you reach 360 W – or the maximum power rating of the device that you use to
supply the chain with DC power if this rating is lower than 360 W – you must stop adding devices
and create a new chain that draws DC power from a new source.
Drawing off a DMX signal from the end of a chain
If you want to continue the DMX link to carry a DMX signal from the end of a VC-Grid chain to other devices,
connect a Martin Hybrid Adapter Cable, PCB to 4-pin female XLR, P/N 11840159, to the
OUT
connector of
the last module in the chain.
Then, to connect to a standard DMX link that uses 5-pin XLR connectors, add a Martin Data Out/Thru
Adapter Cable, 4-pin male XLR to 5-pin female XLR, P/N 11840203. This adapter cable relays the DMX
data signal only, it does not collect DC power at its 4-pin male XLR connector.
