Tyco 4100U - Manual (Page 133)

8-11
The 4100MXP is a 4” x 5” card, similar to the IDNet, but allows the 4100U to
communicate with a Loop of MX devices. The firmware in the 4100U sees the
4100MXP as an IDNet, and all the MX devices are matched to the nearest Simplex
device.
The main difference of 4100MXP from IDNet is that it has a nominal 40V loop supply
voltage and is capable of supplying up to 1A of loop current.
The power for this loop supply is drawn from the 24V Signal bus, which is only present
on the PDI when an XSPS is directly attached to it.
Details of the 4100MXP is provided in manuals LT0313 and LT0314.
The 4100MXP
Introduction
Power Connection