RFID SIMPLEX COMBO 1880 User manual

INSTALLATION AND OPERATING
MANUAL
FOR
SIMPLEX COMBO READER/READ HEAD
MODEL 1880 Part No. 710-0005-00
MODEL 1880E Part No. 800-0006-00
Version 3/00

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TABLE OF CONTENTS
SECTION 1 -GENERAL INFORMATION
1.1 INTRODUCTION Page 3
1.2 DESCRIPTION Page 3
1.3 SPECIFICATIONS Page 4
SECTION 2 -INSTALLATION
2.1 INTRODUCTION Page 5
2.2 UNPACKING AND INSPECTION Page 5
2.3 INSTALLATION SUMMARY Page 5
2.4 POWER REQUIREMENTS Page 6
2.5 AC/DC POWER SELECTION Page 7
2.6 POWER CONNECTIONS Page 7
2.7 SIGNAL CABLING Page 8
2.8 REMOTE ENABLE CABLING Page 9
2.9 ANTENNA CONNECTIONS Page 9
2.10 MOUNTING CONSIDERATIONS Page 9
2.11 EXTERNAL INTERFERENCE Page 10
2.12 WARRANTY Page 10
If you are reading a pdf version of this manual you may notice page numbers and the above contents
to be off by a page from time to time. The conversion to Acrobat has a tendency to move sections as
the fonts do not translate perfectly.

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SECTION 1
GENERAL INFORMATION
1.1 INTRODUCTION
This manual provides information pertaining to the installation and operation of the Model 1880
Combo Reader/Antenna, PCB only, (RFID, Inc. Part No. 710-0005-00) or Model 1880E (the E
signifying enclosure) (RFID, Inc. Part No. 800-0006-00).
1.2 DESCRIPTION
The Model 1880 is a versatile, low powered Reader with an RF Antenna etched into its PCB thus
combining the 2 operations of a Reader and an Antenna/Read Head into a single piece Combo
Reader Antenna. The Model 1880 is ideally suited for integration into conveyor systems,
Automated Storage and Retrieval Systems (AS/RS) and other RFID requirements in warehouse and
factory applications.
The Combo Reader operates as both a transmitter and receiver. The Combo Reader provides a low-
frequency electromagnetic field at 148 kHz to energize and activate an Electronic Transponder, or
Tag, in the vicinity of the Antenna. Once the Tag is energized, it modulates its data back to the
Combo Reader. The Combo Reader detects, amplifies and filters this modulation, translates the RF
data signal into a digital format and relays it to the Interface unit for use by a host computer, process
controller or display and storage device. The Interface of course translates the digital data into a
computer understandable language, like serial.
The Combo Reader is simple to use and install. It requires no alignment or adjustment and can operate
from different types of power sources. The unit may be mounted in a variety of ways to suit the
particular application and equipment.

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1.3 SPECIFICATIONS
Operating Frequency: 148 kHz +/-0.5% (transmit) 37 kHz (receive)
Tag Reading Distance: Up to 18" (depending on Antenna, transponder and orientation)
Remote Enable: 5 mA, Opto-isolated
Signal Output: 75 ohms, balanced
Cabling to Interface: Up to 5000 feet (with shielded twisted pair cable)
Connectors:Angle entry terminal strips
Antenna:TB3 -1 and 3
Signal to Reader: TB1 -1 and 2
Remote Enable: TB2 -1 and 2
Power: TB2 -3, 4 and 5
Power Supply Voltage:
DC: 18 to 32 VDC Regulated
AC: 24 V Regulated RMS(+10/-20%),47-63 Hz
Power Supply Current: 200 mA (max)-Enabled
150 mA (typ)-Enabled
30 mA (typ)-Disabled
Remote Read Output: 100 mA. max. load, non-inductive
Visual Indicators
DS1: Sensor Enabled
DS2: Valid Read
Temperature Range
Operating: -40 to +55 degrees C
Non-operating: -55 to +85 degrees C
Dimensions
PCB: 4.0 x 4.4 x 1.1 inches
Enclosure: ?
Weight:
PCB: 0.25 lbs. (0.12kg)
In Enclosure: ?

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SECTION 2
INSTALLATION
2.1 INTRODUCTION
This section contains information for unpacking, inspection and installation. Installation includes
power and signal wiring as well as mounting of the Reader itself.
2.2 UNPACKING AND INSPECTION
If the shipping carton is damaged or shows evidence of abusive handling, inspect the Reader for visible
damage including dents, scratches, etc. If the unit appears damaged, contact the carrier and RFID, Inc.
Sales or Customer Service Departments immediately. Keep the shipping and packaging material for
the carrier's inspection. RFID, Inc. will arrange for repair or replacement of the damaged unit without
waiting for the claim settlement with the carrier.
2.3 INSTALLATION SUMMARY
Figure 2-1 Installation Summary
Basically there are 3 sets or pairs of wires to consider, Power and Ground, Signal and Signal BAR,
Enable and Enable BAR. These can be organized into 3 sets of 2 conductor cables, 1 set of 2
conductor and 1 set of 4 conductor cables, or 1 set of 6 conductor cable. Section 2.6 details these
options and references cables by approved and recommended manufacturer part number.
Connect SIG and SIG BAR outputs from TB1 -1 and 2 to Interface inputs SIG and SIG using #20 -
#28 AWG twisted pair wire. If used, connect shield to TB1 -3, leave unconnected at other end.

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OPTIONAL. Note: EN and EN BAR connections are used for multiplexing systems on Reader
Model 1885(E) and Interface Model 2022(E). They are wholly unnecessary when using a Simplex
system, Model 1880 unless you want to be able to disable the Combo Reader from time to time via
command from the Interface. Connect EN and EN BAR inputs at TB2 -1 and 2 to Interface outputs
EN and EN BAR. If used, connect shield to TB1 –3, leave unconnected at other end. Remove J1 for
remote operation.
Select power source. Leave off while making connections:
AC -Connect AC power source to TB2 -3 and 4.
Remove J2.
DC -Connect DC+ to TB2 -3.
Connect DC-(GND) to TB2 -5.
Install J2.
CAUTION!
Failure to remove the shorting jumper from J2 when operating with an AC power source will cause
permanent damage to Reader circuitry. The Reader is normally supplied with the shorting jumper
installed on J2 (DC operation).
2.4 POWER REQUIREMENTS
The Reader may be powered from regulated or linear, AC or DC power sources having the following
characteristics:
Voltage DC: Voltage Range: 18 to 32 volts
Ripple: 100 mv p-p (max.)
Voltage AC: Voltage Range: 24 v RMS (+10%, -20%)
Frequency: 47-63 Hz
Current: Operating: 200 mA. (max.)
150 mA. (typ.)
Disabled: 30 mA (max.)
RFID, Inc. can provide transformers and power supplies suitable for use with the Model 1880. If you
provide your own power supply, it is recommended that you avoid switching power supplies. These
supplies produce electromagnetic interference (EMI) that WILL interfere with the operation of the
Combo Reader.
The Combo Reader assembly can operate from grounded or floating supplies. It may operate from a
separate ground reference with respect to the Interface or host computer.

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2.5 AC/DC POWER SELECTION
The Combo Reader contains an on-board bridge rectifier for conversion of floating AC power input to
DC. For operation with DC input, this full-wave bridge can be bypassed with jumper J2.
AC Operation -Select the full-wave bridge by removing shorting jumper J2 from the printed circuit
board.
DC Operation -Bypass the full-wave bridge by connecting both of J2's pins together with the shunt
provided.
2.6 POWER CONNECTIONS
Power wiring should be connected to terminal strip TB2 using #20 to #28 AWG insulated, stranded
wire. The power source should be turned off while making connections to the Combo Reader. Wires
should be stripped approximately 3/8 of an inch. Tinning of these ends is recommended.
AC Supply: Connect AC power inputs to TB2 locations 3 and 4 that are marked AC/DC+ and AC.
Since AC has no polarity, pins 3 and 4 are interchangeable. TB2 location 5 (GND) is left unconnected
and may be used as a DC ground reference if a floating supply is used. Be sure jumper J2 is removed
before applying AC power.
DC Supply -Connect the positive DC input to TB2 location 3 (AC/DC+) and the DC return to TB2
location 5 (GND). TB2 location 4 (AC) is left unconnected. Reverse polarity can cause permanent
damage so verify connections before applying power.

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2.7 SIGNAL CABLING
For best performance, signal connections should be made with shielded, twisted pair cable. If the
signal wires are combined in the same cable with the power and remote enable wires, then they should
be separately shielded. The following cables are recommended for general use:
APPLICATION CABLE DESCRIPTION PART NUMBERS
Signal Only 2 Conductor paired cable Belden 8761
#22 AWG w/foil shield Columbia C2514
Polyethylene & PVC Manhattan M13226
60 degrees C RFID, Inc. PN 214-2202-00
Signal and 4 Conductor paired cable Belden 8724
Remote Enable 1 pr. 22 AWG w/ foil shield Alpha 2464
Or 1 pr. 22 AWG unshielded Manhattan M4451
Signal and Polypropylene & PVC TELSOR PN 214-2204-00
Power Input 60 degrees C
Signal 6 Conductor paired cable Belden 8786
Power, and 2 pair 24 AWG w/foil shield Manhattan M14477
Remote Enable 1 pair 22 AWG unshielded TELSOR PN 214-2206-00
PVC, 80 degrees C
Signal outputs are connected from terminal strip (TB1) on the Combo Reader to the SIG and SIG BAR
inputs on the selected Interface. Wires should be stripped approximately 3/8 of an inch and tinned.
The SIG output from the Combo Reader (TB1-2) connects to the SIG input on the Interface. The SIG
output (TB1-1) connects to the SIG input on the Interface. If shielded cable (recommended) is used,
the shield should be connected on one end only. It is recommended to connect the shield to the Combo
Reader SHLD connection (TB1-3) and leave the other end floating. It is acceptable to connect the
shield to the Interface and leave it floating on the Combo Reader. Over short distances or in
environments that are free of electromagnetic noise the shield may be omitted.
DO NOT CONNECT THE SHIELD TO BOTH THE COMBO READER AND INTERFACE!

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2.8 REMOTE ENABLE CABLING
Combo Reader operation may be controlled from an Interface or remote unit via the enable inputs (EN,
EN BAR) at TB2 locations 1 and 2. Disabling the Combo Reader shuts off the Antenna’s 148 kHz
transmissions and reduces current draw to 30 mA (max). If the remote enable feature is not used, a
shorting jumper must be placed across J1 and the EN/EN BAR inputs may be left unconnected. The
shunt overrides the remote control and continuously enables the Combo Reader regardless of the
EN/EN BAR inputs. The Model 1880 is normally supplied with the shorting shunt installed.
The remote enable feature can be used by some Readers by directly connecting the Interface EN output
to the Reader EN input and the Interface EN output to the Reader EN input. Interfaces with this
feature have ENABLE and DISABLE commands. Multiplexing Interfaces use this output to control
Reader multiplexing and may not be compatible with the remote enable feature. Check the Interface to
determine if it provides remote enable requirements.
To enable the Combo Reader remotely, a custom interface may be designed to provide the following
characteristics:
ENABLED STATE: Differential Voltage = +3V (min) to +15V (max) into 500 OHM Load.
DISABLED STATE: Differential Voltage = +0.5V (max) to -5V (min) into High Impedance Load.
Differential voltage is measured from the EN to the EN terminal. That is, a +3V differential voltage
means that the EN terminal (TB2 Pin 1) is 3.0 volts above the EN terminal (TB2 Pin 2). The remote
enable circuit on the Combo Reader is an opto-isolator with a 470 ohm, .5 watt current limiting resistor
in series. 5 mA is required to turn on the isolator. The following 2 control schemes are available for
remote control:
SOURCE: Connect EN to Ground.
Connect EN input to the output of a logic device capable of sourcing 5 mA minimum.
Set EN to 0 volts to disable the Combo Reader.
Set EN to +5 to +12 volts to enable the Combo Reader.
SINK: Connect EN to +5 to +12 volts.
Connect EN input to the output of a logic device capable of sinking 5 mA minimum.
Set EN to 0 volts to enable Combo Reader.
Set EN to EN voltage to disable Combo Reader.
2.9 ANTENNA CONNECTIONS
This section intentionally left blank.
2.10 MOUNTING CONSIDERATIONS
The Combo Reader’s operations can be affected by metal in close proximity. A high concentration of
metal can distort or block fields created by the Antenna as well as absorb some of the energy it creates.
For the Model 1880 Reader, the following guidelines should be used in determining mounting
locations:

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•Operation is not significantly affected by small isolated metal objects such as screws or other
hardware.
•Large conductive areas such as metal plates should be kept at least half the Antenna’s diameter,
about 4 inches, from the Antenna.
•The impact on Reader operation is primarily a function of the area enclosed by the conductor.
That is, a closed loop of wire of a given area can have nearly the same impact as a solid sheet
of metal of the same area.
Standard anti-static precautions should be observed when handling 1880 Combo Readers outside of
enclosures.
2.11 EXTERNAL INTERFERENCE
Since the Model 1880 transmits and receives electromagnetic fields, it is susceptible to interference
from external sources of intentional and unintentional electromagnetic radiation. At its frequency of
operation, the effect of external sources falls off rapidly with distance. The operation of the unit may
be degraded by lower level sources of interference within 20 feet or so of the Combo Reader and
higher level sources up to 100 feet away. The following items should be given consideration when
operating the Combo Reader:
•Unshielded CRT's should be kept at least 20 feet from the Combo Reader to reduce the effect
of the deflection yoke magnetic field. Orientation of the screen to the Combo Reader can have
an affect on the exact distance of the interference. Try turning the screen, or changing its Hz
settings at which it operates.
•Signal lines from the Combo Reader should always be run through shielded twisted pair cable.
•Power input lines should be well filtered and free of switching spikes caused by thyristors,
SCR`s, etc. which create interference across a broad spectrum of frequencies.
2.12 WARRANTY
RFID, Inc. products are warranted against defects in materials and workmanship for one (1) year from
date of shipment. RFID, Inc. shall, at its option, either repair or replace products that prove to be
defective and are returned with freight prepaid to RFID, Inc.’s plant within the warranty period. The
foregoing warranty shall not apply to defects resulting from abuse, misuse, accident, alteration, neglect
or unauthorized repair or installation. RFID, Inc. shall have the right of final determination as to the
existence and cause of the defect.
THE WARRANTY SET FORTH ABOVE IS EXCLUSIVE AND NO OTHER WARRANTY,
WHETHER WRITTEN OR ORAL, IS EXPRESSED OR IMPLIED. RFID, Inc. SPECIFICALLY
DISCLAIMS THE IMPLIED WARRANTIES OR MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE.
The remedies provided herein are Buyer's sole and exclusive remedies. In no event shall RFID, Inc.
be liable for direct, indirect, special, incidental or consequential damages, (including loss of profits)
whether based on contract, tort, or any other legal theory.