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AM-CRI

Card
Reader
Interface

Installation Instructions

INTRODUCTION

The AM-CRI card reader interface is designed for use with Linear’s 
AE1000Plus, AE2000Plus, and AM3Plus access control systems. The 
interface will support one or two 26-bit Weigand input devices.

If the readers used have a “hold” or “buffer” connection, two readers may 
be used to the AM-CRI. If the readers do not have a “hold” or “buffer” 
connection, one reader may be used with the AM-CRI.

Usually mounted near the readers, the AM-CRI interface connects to the 
controller through a six-wire cable. Each reader connects to the AM-CRI 
through a six-wire (one LED in reader) or seven wire (two LEDs in reader) 
cable.

Two rotary switches in the AM-CRI select the PBUS device address for each 
reader connected. Each remote PBUS device connected to the controller 
must be set to a different device address. The address switches in the 
AM-CRI must be set to different addresses if two readers are used.

Power is supplied to the interface and reader(s) from the controller. A power 
selection jumper is provided for each reader. Five or eight volt power or 
external power for locally powered readers can be selected.

1. TYPICAL INSTALLATION

2. OPEN CASE

3. LOCATE COMPONENTS

4. MOUNT READERS

USA & Canada (800) 421-1587 & (800) 392-0123

(760) 438-7000 - Toll Free FAX (800) 468-1340

www.linearcorp.com

CABLE RUN

CABLE TYPE

FORMULA

120 FEET MAXIMUM

BELDEN 9931 (24 AWG)

WEICO 9405 (20 AWG)

FEET x LOAD UNITS < 3,000 MAXIMUM

FEET x LOAD UNITS < 10,000 MAXIMUM

400 FEET MAXIMUM

CABLE TO 
CONTROLLER
(SEE FORMULA)

HOMERUN
WIRE EACH
AM-CRI TO THE
CONTROLLER

ONE OR TWO READERS
CAN BE USED

AM-CRI
INTERFACE
(INSIDE WALL)

EACH AM-CRI EQUALS 25 LOAD UNITS

CABLE LENGTH FORMULA FOR EACH AM-CRI USED IN SYSTEM

SQUEEZE
SIDES
TOGETHER

SEPARATE
CASE

POWER & DATA

TERMINALS

     (CONNECTS TO 
      CONTROLLER)

READER "A"
TERMINALS

READER "B"
TERMINALS

READER "A"

POWER JUMPER

READER "B"

POWER JUMPER

READER "A"

DEVICE ADDRESS

SELECTOR

READER "B"

DEVICE ADDRESS

SELECTOR

MOUNT READER(S)
PER MANUFACTURER'S
SPECIFICATIONS

PRINTER’S INSTR

UCTIONS:

INSTR, INSTL, AM-CRI - LINEAR P/N:

 211845 E - INK:

 BLA

CK - MA

TERIAL:

 20 LB

. MEAD BOND - SIZE:

 11.000”

 X 8.500”

 - SCALE:

 1-1 - S

IDE 1 OF 2

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