Specifications

The STB NIB 2212 NIM Module
31004624 8/2009 41
The extended island bus contains three built-in power supplies:
z the supply built into the NIM, which resides in the leftmost location of the primary
segment
z a power supply built into each of the STB XBE 1300 BOS extension modules,
which reside in the leftmost location of the two extension segments
In the figure, the external supply would provide 13 W of power for the NIM plus 13 W
for each of the two BOS modules in the extension segments (for a total of 39 W).
NOTE: If the 24 VDC source power supply also supplies field voltage to a power
distribution module (PDM), you must add the field load to your wattage calculation.
For 24 VDC loads, the calculation is simply amps x volts = watts.
Suggested Devices
The external power supply is generally enclosed in the same cabinet as the island.
Usually the external power supply is a DIN rail-mountable unit.
We recommend using ABL8 Phaseo power supplies.