SLAM vs ILAM Selection Guide

Overview

Choosing between the Standard LAN Access Module (SLAM) and the Intelligent LAN Access Module (ILAM) depends on the density of doors, the required level of offline intelligence, and the overall system scale.

Feature	SLAM	ILAM
Native Door Support	2 Doors	2 Doors
Max Door Capacity	2 Doors (No UniBus support)	8 Doors (Integriti via UniBus / Inception via internal logic)
Offline User Cache	2,000 Cards	100,000 Users
Offline Event Log	Volatile / Not specified	100,000 Events
UniBus Expansion Support	No (CANNOT use UniBus)	Yes (Up to 6 boards total)
Reader Support	4 SIFER or 2 Wiegand	16 SIFER/OSDP or 2 Wiegand / Aperio Hubs
Identification	”2-Door Reader Module (R)"	"8-Door Reader Module (I)“

Simple Door Pairs: You have isolated pairs of doors (e.g., a small office or a single stairwell) where local expansion is not required.
Cost Sensitivity: You need a basic, cost-effective networked door controller.
Lower Security Tier: The site can tolerate a smaller 2,000-card cache in the event of a Controller communication failure.

High-Density Areas: You have clusters of doors (e.g., a server room floor or a main lobby) where you can utilize UniBus Expansion (3 x 2-Door Expanders) to manage 8 doors from a single LAN address.
Inception Expansion: You need to expand an Inception system up to its 128-door limit; the ILAM is the most efficient way to add doors.
High Security / Mission Critical: You require a massive 100,000-user database and an autonomous event log. The ILAM ensures that if the link to the Controller (IAC/ISC) is severed, the doors continue to operate at full intelligence for almost any user population.
Wireless Integration: You are implementing Aperio Wireless Locks (Inception only).
Lift Control: You need to integrate lift floors (via the UniBus 16-Floor Lift Interface).