FOCUS 200 PLUS Installation and Setup Guide10-4Installing the Access Control Interface UnitThe following installation procedures are limited to the installation of the Access Control Interface Unitand the wiring to the various readers, the door strike (or Keylok), and the RS-485 bus. Manufacturer'sinstallation instructions for the various card/key readers, door strikes, etc. come with those devices.Always follow these instructions when installing or working on these items.The installation procedure entails installing the ACIUs and their on-board batteries and makingconnections to the RS-485 bus to allow the batteries to charge. During this charging time, you caninstall the card/key readers, electric strikes, Keyloks, etc. Once the batteries have fully charged, powerdown the control unit and connect the readers, strikes, etc. to the ACIU. Then use the constructioncard/keys to check that each electric strike or Keylok functions properly, and make mechanicaladjustments where necessary.The Summary of Access Control Card/Key Readers Table, shown later in this section, providesimportant information concerning the various card/key readers, including user operation, requiredreader DIP switch settings, and instructions for jumper settings for E11 on the ACIU.Application GuidelinesUse the following guidelines when planning an installation:• All access control applications require a separate ACIU for each door.• All readers, except for the Marlok Keyreader and Keylok, can be used on both sides of a door, andshare the same ACIU.• Reserve the first 99 user ID codes for people who must use an operating panel.• When using an access-controlled perimeter front door, always make sure that there is anotherperimeter door having a mechanical lock for gaining access. In this way, if there is a problem withthe door release mechanism or the ACIU, someone with the key can enter the other door and thenopen the front door to let people in.• Where general access to an unprotected lobby is required, and there is no concern for scheduling, acard/key reader can be used with an ACIU that does not have any BA groups assigned to it. Thiswill allow access to the lobby for all persons with valid card/key codes, while requiring all others(visitors, etc.) to be buzzed in.If access to the lobby is to be limited to certain working hours, assign the lobby reader to a BAgroup that does not have any BA points. Then assign a schedule to that BA group. All personshaving limited access must be programmed with a close-only privilege. All persons requiringround-the-clock access must be programmed with either open or irregular open privilege.• Install a card/key reader near an operating panel to facilitate the enrolling of new cards/keys.Installation GuidelinesUse the following guidelines when installing the ACIU:• Do not use a mag stripe card on a Wiegand reader. It may corrupt the code on the mag stripe card.• Each ACIU must receive a minimum of 12.5V from the RS-485 bus. Otherwise, the on-boardbattery will not charge and there will not be any power for releasing the door strike. If necessary,add a power supply to ensure that this voltage will be available.• Maximum current for the electric door strike = 550mA.• Make certain that the length of cable between the ACIU and its associated reader and door strikedoes not exceed 150 feet.• The ACIU must not be subjected to temperatures below 32°F (0°C) or above l20°F (49°C).• Include each ACIU in the System Layout Diagram of the FOCUS 200 PLUS System, indicating theBA group(s) that will be accessed via the ACIU.
