Other Installation Considerations; Power Supply/Current Requirements; Gang Box And Mounting; Mounting The Unit On Metal - IEI Technology prox.pad Installation & Programming Manual

prox.pad Installation/Programming Manual
1.14

Other Installation Considerations

Sections 1.15.1 - 1.15.4 describe important considerations the installer must decide upon before actually starting to install and wire the
prox.pad.
1.14.1

Power Supply/Current Requirements

Power for the prox.pad unit must be from a minimum 10-15 volt DC linear, filtered and regulated access control power limited power
supply. The prox.pad unit draws approximately 55mA of current. It is typical for the chosen power supply to power both the prox.pad
unit and the locking device. When using one power supply for both the prox.pad unit and locking device, be sure to include both
devices in your current requirements calculations.
NOTE: IEI recommends that you ground the power supply to earth ground.
1.14.2

Gang Box and Mounting

For the wall mounted installation configuration, a single gang electrical box can be used. Typically, the prox.pad unit is wall mounted
outside the access area on the unsecured side of the door.
1.14.3

Mounting the Unit on Metal

The prox.pad unit uses radio frequency (RF) to transfer power to and communicate with the proximity card or key fob. If the antenna
is mounted directly on a metal building or wall, some of the energy is absorbed by the metal, resulting in less power being transmitted
to the card/key fob; this causes reduced read range. If you must mount the prox.pad unit on metal, test the unit in place before
permanently installing it. If read range distance distance is not adequate, a non-metallic spacer can be fabricated and installed between
the unit's antenna and the metal mounting surface.
1.14.4

RF Interference

The prox.pad unit should not cause interference to other equipment as it is designed to meet FCC guidelines. However, other devices
can interfere with prox.pad operation. Avoid locating the prox.pad unit closer than 3 feet (1 meter) to a computer monitor or television
or another prox.pad unit. If you believe you are experiencing reduced read range due to interference, try repositioning the prox.pad
unit, remoting the antenna, or relocating other nearby electrical equipment.
Page 14 of 86 Document # 6055676, Rev 2.2, D4b