Installation Guide

ACCESS CONTROL DIVISION
Installing EMI Suppression Beads Supplied with the SCR-100
SmartCard Reader
Two clamp-on ferrite chokes are included in the installation kit in order to meet current
emissions standards. These are the familiar “Snap-on” Split-Ferrite Beads.
North America
To meet FCC (American) and Industry Canada requirements, the larger split bead must be placed
on the AC Power Cable of the Access Control Panel connected to the SCR-100 SmartCard
Reader to assure that the Radio-Frequency energy will not be coupled into the AC Power Line.
Install the bead inside the enclosure, near the power supply, as shown below. The jacket must be
removed to allow the wires to pass through the bead two times. The line, neutral, and safety
ground wires must be included in this turn. If several SCR-100 Readers are used, only one bead
is required.
Open the bead by gently prying the latch with a thumbnail or small screwdriver. Loop the wiring
as shown, then place the bead over the wires and gently squeeze shut until the latch snaps shut,
indicating that the cable has been correctly covered.
NOTE
Verify that the bead is snapped closed, as it does not provide the
required suppression otherwise.