FAAC AT- 4/868 UHF User manual

2011-05-188 ver #: 1.01
FAAC S.p.A. Via Calari, 10 – 40069 – Zola Predosa (BO) - Italy Page 1 of 25
AT- 4/868 UHF
Installation guide
Part number: 103162

AT-4/868 UHF
FAAC S.p.A. Via Calari, 10 – 40069 – Zola Predosa (BO) - Italy Page 2 of 25
CONTENTS
CONTENTS .................................................................................................................................................2
1INTRODUCTION ..............................................................................................................................3
1.1 PRODUCT DESCRIPTION......................................................................................................3
2INSTALLATION.................................................................................................................................4
2.1 PRECAUTIONS........................................................................................................................4
2.2 MOUNTING INSTRUCTIONS................................................................................................4
2.3 ADJUSTABLE MOUNTING BRACKET .................................................................................5
2.4 OPENING THE SERVICE COVER ..........................................................................................6
3CONNECTIONS................................................................................................................................7
3.1 FASTENING THE CABLES .....................................................................................................7
3.2 CONNECTIONS....................................................................................................................... 8
3.3 POWER SUPPLY......................................................................................................................9
3.4 COMMUNICATIONS............................................................................................................10
3.4.1 RS232 CONNECTION.......................................................................................................... 10
3.4.2 WIEGAND, MAGSTRIPE, BARCODE CONNECTION..................................................... 11
3.5 DIGITAL I/O ...........................................................................................................................12
3.5.1 RELAY OUTPUT.................................................................................................................... 12
3.5.2 DISABLED READING........................................................................................................... 13
3.5.3 TAMPER SWITCH................................................................................................................. 14
4DIAGRAMS OF CONNECTIONS TO EQUIPMENT............................................................. 15
4.1 CONNECTION TO ACCESS CONTROL.............................................................................15
4.2 CONNECTION TO PARKLITE..............................................................................................16
4.3 CONNECTION TO PARAGON............................................................................................19
5SETTING THE DIP-SWITCHES .................................................................................................. 20
5.1 RS232 / RS422 SELECTION ................................................................................................20
5.2 RS232 / RS422 SELECTION ................................................................................................20
5.3 SW1-3 SW1-4.......................................................................................................................20
6LED DESCRIPTION....................................................................................................................... 21
7UHF FREQUENCIES.................................................................................................................... 22
7.1 RADIO REGULATION...........................................................................................................22
7.2 FREQUENCY CHANNEL SELECTION................................................................................22
TECHNICAL SPECIFICATIONS.......................................................................................................... 24
APART NUMBERS ........................................................................................................................... 25

AT-4/868 UHF
FAAC S.p.A. Via Calari, 10 – 40069 – Zola Predosa (BO) - Italy Page 3 of 25
1INTRODUCTION
1.1 PRODUCT DESCRIPTION
AT-4/868 UHF represents the most recent technology for “free hands” access
solutions, that is whenever showing a ticket/card to access a gate would become
uncomfortable.
The unit is designed to identify vehicles with passive tag sticker applied to the
windshield of the car. Recognition occurs at a maximum distance of 4 meters.
The reader are installed next to the gate on maximum height of 2 meters.

AT-4/868 UHF
FAAC S.p.A. Via Calari, 10 – 40069 – Zola Predosa (BO) - Italy Page 4 of 25
2INSTALLATION
2.1 PRECAUTIONS
The following precautions must be observed during normal use, maintenance and
repair jobs.
•Make sure that the cables are connected to earth.
•AT-4/868 UHF must be installed and repaired only by qualified personnel.
•Before removing or installing the parts, always disconnect the power supply.
•Do not modify or add components to the AT-4/868 UHF, if not indicated by the
manufacturer or by FAAC, in order not to jeopardize the compliance of the
system with the safety requirements.
2.2 MOUNTING INSTRUCTIONS
AT-4/868 UHF can be mounted on every surface.
Locate a suitable position. Use both holes (K) on the upper part to mount the
reader.
Open the service cover to use the supporting holes located at the bottom (L).
Refer to the image below for details about dimensions and position of the mounting positions.
Fig. 1: AT-4/868 UHF Reader Dimensions

AT-4/868 UHF
FAAC S.p.A. Via Calari, 10 – 40069 – Zola Predosa (BO) - Italy Page 5 of 25
2.3 ADJUSTABLE MOUNTING BRACKET
The AT-4/868 UHF can be oriented into the required detection area thanks to the
adjustable mounting bracket. The mounting bracket can be fixed to square round
posts.
Fig. 2: Adjustable Mounting Bracket
The bracket can also be wall-mounted.
After having fixed the bracket, you can connect the AT-4/868 UHF.
The spherical part enables you to direct the AT-4/868 UHF into the required
direction. After having reached the correct orientation, secure the position by
means of the Allen screw on the joint.
Notes: Max. diameter for round posts 125mm (4.9 inch)
Max. diameter for square posts 100mm (3.9 inch)
123mm (4.84")
47mm (1.85")
61mm (2.40")
120mm (4.72")
15mm
(.59")
88mm (3.46")
Side view
Rear view
∅4.5mm
(.17")
Fig. 3: Dimensions of the adjustable mounting bracket (in mm)

AT-4/868 UHF
FAAC S.p.A. Via Calari, 10 – 40069 – Zola Predosa (BO) - Italy Page 6 of 25
2.4 OPENING THE SERVICE COVER
Open the service cover to have access to the connections, check the reading
range, set the operating frequency and view the LED indicators.
Use the screws at the bottom of the device to unblock the cover and make the
lifting possible.
Fig. 4: Opening of the service cover
Note: Make sure that the screws are completely loose (or tightened when the cover
is closed again). The screws are inserted inside the plastic structure – in this
way they cannot be lost.

AT-4/868 UHF
FAAC S.p.A. Via Calari, 10 – 40069 – Zola Predosa (BO) - Italy Page 7 of 25
3CONNECTIONS
3.1 FASTENING THE CABLES
The cables of the AT-4/868 UHF are connected using EMC type cable glands.
Use a shielded cable for the power supply.
Mounting instructions:
1.
Fit the nut (1), the seal (2) and the cable gland (3)
on the cable.
2. Cut the external sheath to the required length.
3.
Fold the shielding screen (4) on the cable gland
and reduce the shield as shown in
Fig. 5: Shielded cable
4.
Screw the nut (1) until the seal (2) starts
to come out. See Fig. 6.
Fig. 6: Tightening
For a water-proof protection a correct mounting and tightening of the EMC
connectors are of essential nature.
See Appendix A for any details on the cable glands.

AT-4/868 UHF
FAAC S.p.A. Via Calari, 10 – 40069 – Zola Predosa (BO) - Italy Page 8 of 25
3.2 CONNECTIONS
The cables inside the AT-4/868 UHF are connected by means of connectors with
spring terminals which make for an easy and intuitive use.
1. Remove the sheath from the cable for approx. 9
mm (0.35 inch).
2. Using a screwdriver push downward to free the
cable passage. Use a screwdri
ver with thin flat
bit.
3. Fit the cable into the connector terminal.
4.
When the screwdriver is removed, the cable
remains blocked thanks to the spring connector.
5. Check if the cable is correctly fixed by drawing it
gently.
Fig.7
Note 1: One cable only for each terminal.
Note 2: Usually there is no need to use pins. However, if this is necessary, you can use
them provided that they are correctly crimped.
See Appendix A for the recommended cable section.

AT-4/868 UHF
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3.3 POWER SUPPLY
AT-4/868 UHF requires a DC 12 – 24V power supply. The max. current
consumption is 1A @ 12VDC, 0.5A @ 24VDC.
Connections:
DC- 0V.
DC+ 12 - 24VDC.
Note: The electrical connection is protected by means of a self-resetting fuse.
Fig. 8: Power supply Wiring

AT-4/868 UHF
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3.4 COMMUNICATIONS
3.4.1 RS232 CONNECTION
AT-4/868 UHF has an RS232 interface onboard. This interface does not support
hardware handshake signals.
Connections:
RXD Reception (input)
GND Ground
TXD Transmission (output)
Note 1: Max. cable length 15 m.
Note 2: Activate the RS232 interface by setting the DIP-switches SW1-2 to ON. See
chapter 5.2 for further details.
Fig. 9: RS232 wiring