Specifications

Keri Systems, Inc. Doors

Users Guide

01914-002 Rev. 5.5 Section 2: Setup System 2-13

1.2.5 Set Local Anti Passback

Anti Passback (APB) provides one-card one-way access into and then out of a secure area. It prevents

someone from using a card to enter a secure area and then passing that card back to someone else to use

to enter that same secure area.

Local APB means the passback rules are applied on a per controller basis. Each controller tracks which

users have been through its doors; controllers cannot track which users have been through other

controllers/doors. Doors software uses local APB; referred to as APB for the rest of this Users Guide.

NOTE: APB is not applicable to EntraGuard controllers.

At a given controller using APB, no exit is allowed through a controller’s B-reader unless entrance was

made through that same controller’s A-reader. No entrance is allowed through a controller’s A-reader

unless exit was made through that same controller’s B-reader. If a user presents a card to the reader at a

door, but decides not go through that door (the door is not opened), APB is not applied allowing the

user access through that door later.

NOTE: In order for APB to properly track when a user gains access through a door, the door must have

a door switch installed. Refer to the PXL-250 Tiger Controller and SB-293 Technical Reference Manual

(P/N 01836-004), the PXL-250 Quick Start Guide

(P/N 01835-002), or the PXL-500/PXL-510 Quick

Start Guide (P/N 01918-001) for door switch installation information.

The program default is for APB to be OFF. To implement APB, the APB feature must be enabled in the

software and then configured for the desired controllers and cards/users. APB amnesty can be granted to

individual cards, allowing those cards to violate the APB rules. Amnesty can be automatically granted

to a controller periodically (i.e. once an hour), automatically granted to a controller at a specific time

each day (i.e. 02:00 hours, or 2 A.M.), or not automatically granted at all (amnesty can be manually

granted by an operator to a user at any time - see “Anti Passback Amnesty” on page 26 in section 6).

1. From the System Options tab, click on the button. The System Options

window will reveal the Local Anti Passback field where the APB options are set (see Figure 2-8).

Figure 2-8: Local Anti Passback Field