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AM-CRI
Card
Reader
Interface
Installation
Instructions
(760) 438-7000 • FAX (760) 438-7043
USA & Canada (800) 421-1587 & (800) 392-0123
Toll Free FAX (800) 468-1340
www.linearcorp.com
2. OPEN CASE
SQUEEZE
SIDES
TOGETHER
SEPARATE
CASE
INTRODUCTION
The AM-CRI card reader interface is designed for use with
Linear's Model AM/II access control system. 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 AM/II control unit 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 device address
for each reader connected. Each remote device connected to
the AM/II 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 AM/II.
A power selection jumper is provided for each reader. Five or
eight volt power or external power for locally powered readers
can be selected.
3. LOCATE COMPONENTS
READER "A"
DEVICE ADDRESS
SELECTOR
READER "A"
TERMINALS
READER "A"
POWER JUMPER
READER "B"
POWER JUMPER
READER "B"
TERMINALS
1. TYPICAL INSTALLATION
CABLE LENGTH FORMULA FOR EACH AM-CRI USED IN SYSTEM
CABLE RUN
120 FEET MAXIMUM
400 FEET MAXIMUM
4. MOUNT READERS
POWER & DATA
TERMINALS
(CONNECTS TO AM/II)
READER "B"
DEVICE ADDRESS
SELECTOR
AM-CRI
INTERFACE
(INSIDE WALL)
ONE OR TWO READERS
CAN BE USED
CABLE TO AM/II
(SEE FORMULA)
EACH AM-CRI EQUALS 25 LOAD UNITS
CABLE TYPE
FORMULA
BELDEN 9931 (24 AWG)
FEET x LOAD UNITS < 3,000 MAXIMUM
WEICO 9405 (20 AWG)
FEET x LOAD UNITS < 10,000 MAXIMUM
MOUNT READER(S)
PER MANUFACTURER'S
SPECIFICATIONS
HOMERUN
WIRE EACH
AM-CRI
TO AM/II
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Summary of Contents for Linear Access AM-CRI
- Page 1 If the readers used have a “hold” or “buffer” connection, two ONE OR TWO READERS CAN BE USED AM-CRI 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. Card Usually mounted near the readers, the AM-CRI interface connects to the AM/II control unit through a six-wire cable.
- Page 2 5. CONNECT READERS TO AM-CRI 6. SET DEVICE ADDRESS AND POWER JUMPERS 7. CONNECT AM-CRI TO AM/II SINGLE READER "B" NOTE: READER TERMINALS REFER TO STEP 3 ILLUSTRATION HOOKUP FOR COMPONENT LOCATIONS W/O HOLD HOLD LED1 READER "B" AM/II LED2...
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