page 9 579-1015 Rev U
4100ES Extended Power Supply Installation Instructions
Class B Wiring Tables
Use the following tables to calculate the wiring distance.
Note:
Use the UTP Limit for Speaker and Speaker/Visible Devices Based on Communication table in Figure 12 for TrueAlert ES Speakers and Speaker/Visible
appliances in place of the UTP Wiring Limit Based on Communication table in Figure 11.
Maximum wiring distance is the shorter of the distance limits as calculated by alarm current voltage drop or by reaching the communications distance
limit.
Figure 11: Class B Wiring Tables
Note: Although the required wire for IDNAC circuits is twisted pair (controlled impedance) wiring, some applications will wish to take advantage of
existing wiring that is not twisted pair. This is only allowed if both conductors of the IDNAC circuit reside in the same metal conduit, and only under cer-
tain conditions. Check with your local sales office before using wiring that is not twisted pair.