Section 3. U.L. Requirements
The 232e keypad is a U.L. Listed access control unit. This section
contains information regarding all the requirements necessary to
meet U.L. requirements.
This system must be installed in accordance with the National Elec-
trical code (NFPA70), local codes, and the authorities having juris-
diction. In addition, all wires and cables used must be stranded
and shielded U.L. Listed and/or recognized wire.
All interconnecting devices (that is, door contacts, REX, locking de-
vices, etc.) must be U.L. Listed. A U.L. Listed access control power
limited power supply must be used to power the keypad.
A minimum of three user codes must be programmed into the key-
pad for controlling access.
3.1 Tamper Requirements
To meet U.L. requirements, a U.L. Listed tamper switch must be in-
stalled in the single gang box used for mounting the keypad. The
tamper switch must activate if the keypad is removed from the box
and must disconnect power from the lock. The lock must be a fail-
secure device, meaning the lock remains locked when power is re-
moved. In addition, once the tamper device is activated, it must be
configured so that it can only be reset from within the protected
area. Only a Sentrol 3012 or Sentrol 3025T tamper switch can be
used. The diagrams on the next page show the suggested mount-
ing location for each device.
IEI 232e Standalone Installation/Programming Manual
4
Document # 6054004, Rev. 2.1
