Spec Sheet

ALR-9900+ Enterprise RFID Reader

High Performance, Easy to Deploy, Easy to Manage

Interoperable and Broadly Supported

Alien pioneered the network-ready EPC RFID reader with the widely-supported Alien Reader Protocol. The ALR-

9900+ is supported by key RFID platforms including Microsoft BizTalk RFID, IBM WebSphere, Oat Systems,

Oracle and Xterprise. Proven support for SAP through 3rd-party middleware is also available. A well-documented

SDK featuring .NET, Java and Ruby libraries enables easy, custom interfaces to control the reader if desired.

Powerful Interfaces for Effective Integration

The Alien Reader Protocol features industry leading Autonomous Mode, a programmable state machine that

enables the reader to operate independently based on external triggers, timing or software inputs. This ﬂ exible

system leads to best-in-class read rates by enabling users to precisely control the parameters for timing, protocol,

antenna usage and other critical variables without network latency delays. Automatic parameter adjustments

ensure optimum inventory settings and conform to dynamic tag populations with user deﬁ ned boundaries.

A ﬂ exible general-purpose input-output (GPIO) system enables tight integration with external sensors and

actuators for effective integration with existing business processes. High capacity, optically isolated General

Purpose I/O (GPIO) signals can drive many external devices directly, eliminating the need for costly digital I/O

equipment and relays. Optical isolation ensures accurate reception of triggering signals in noisy, industrial

environments. Middleware access to GPIO inputs and outputs enables direct control via software.

Conﬁ gurable ﬁ ltering, notiﬁ cation modes, data routing options and data formats provide ﬂ exibility and ease-of-

integration. Filtered tag data options, tag streaming and I/O monitoring and streaming offer additional ﬂ exibility.

The ALR-9900+ is fully backwards compatible with Alien’s previous generation, the ALR-9900, enabling users to

easily operate in a mixed population or to transition to the new and improved ALR-9900+ platform.

Monostatic Simplicity

The ALR-9900+ provides the added simplicity of a monostatic antenna topology, which provides a compact

footprint and easy integration. Only one antenna per read point is required, reducing system cost and complexity.

A proprietary, active, noise cancellation and optimization circuit ensures high read rates from the monostatic

antenna system by correcting phase distortion introduced by antenna, cable and environmental factors.

Power and LAN Failsafe Mechanisms Protect Data

The loss of power or LAN connectivity does not lead to the loss of critical tag data. The ALR-9900+ caches up to

2500 tag records in non-volatile memory, preserving data even in the event of a power loss.

When operating in Autonomous Mode, the reader will continue to collect up to 6000 tag records even if the LAN

connection is interrupted. Upon recovery of the LAN connection, middleware can download accumulated tag data

from the reader.

Interference Management

The ALR-9900+ offers several methods for interference mitigation that provide a powerful solution to the challenge

of noisy environments. The reader facilitates a low duty cycle “sniff & read” (“Seek”) mode for applications where

motion detection is not an option, or where power conservation or RF interference is of prime concern.

Good Citizen: EPC Gen 2 Dense Reader Mode

The ALR-9900+ is compliant with the EPC Gen 2 Dense Interrogator speciﬁ cation, which reduces interference

impact on other readers. Dense Reader Mode (DRM) signiﬁ cantly reduces the out-of-channel noise introduced by

the reader, thereby enabling larger numbers of readers to coexist without reducing read rates.