User manual

Retrofit Installation
32
9.8 Npower
As a minimum there will be an IFM board (communication interface)
mounted at the mid-point on the door. Other options may also have
been previously installed.
The option boards mount on the inside of the option door. The Open-
Comms NIC-485 should be mounted in the bottommost (bottom cable
entry) position. Other options can be placed in any open option slot.
9.8.1 Power Connection for NPower
After mounting the NIC-485 in the uppermost or lowermost option
position, per the instructions above, route the wire harness from TB3
on the lower left of the NIC-485 to the power supply board on the back
of the control door. Follow the routing path indicated in Figure 13.
9.8.2 Communication Connection for NPower
Connect the 2-wire harness from TB1 on the bottom center of the
NIC-485 to TB-55 on the IFM card. The board is now ready to connect
customer inputs, which should be routed from either the top or bottom
cable entry points.
Figure 13 shows the single-line detail. Refer to the NPower option
manual for further installation details.