Installing a Net2 access control unit
[Pages:3]Installing a Net2 access control unit
Overview
The diagram below shows the general wiring layout for a Net2 plus ACU. Not all of the equipment shown needs to be installed on every door. For example, when using Timesheet it is only necessary to install a reader and the data connection.
The selection of ACU type and their method of connection to the Net2 server PC (TCP/IP, RS485, wireless, etc) can be combined in one system to meet the needs of any site layout.
Special attention should be paid to the installation of the lock to ensure correct operation, either fail open or fail closed. Exit buttons must always be of the 'push to make' variety. Door contacts, tamper switches and PSU monitoring circuits should all be normally closed, going open on alarm.
Net2 APN-1012
12V DC power supply
COM N.O N.C.
12V DC
PSU PSU
Reader/keypad
0V 12V
LED
LED 1
LED
Data/D0
Clock/D1
Paxton Net2 plus
0V ARM SENSE COM N.O N.C.
12V LED
LED 1
LED
12V DC
Data/D0 Clock/D1 Media Detect 0V
12V
LREDeader/keypad
LED (op2 tional)
LED
12V DC
Data/D0
Clock/D1
Media Detect
0V
12V LED LED
1 LED Data/D0 Clock/D1
0V
12V LED
LED
2
LED
Data/D0
Clock/D1
0V
12V DC
COM N.O N.C.
12V DC
12V - 24V
0V
0V
0V
10N.C.
1
100N.O COM
N.C.
N.O
10/1002 EtherCOnM et
Paxton Net2 plus
EXIT
12V LED
10 100
10/100 Ethernet
I
RS485
CAT5
TX
RX
12V DC
Net2 plus
OK
I
RS485 CAT5
TX
RX
01V2V - 24V
0V
12V 0V
LED N.C.
N.O
1
LED COM 2
LED N.C.
Data/DN0.O
2
Clock/CDO1M
EXIT
12V 0V LED
EXIT 0V
0V
0V 0V
PSU
from previous ACU
10 100
10/100 Ethernet
I
RS485
CAT5
TX
RX
1 2
EXIT
12V - 24V 0V
0V N.C. N.O COM N.C. N.O COM
12V LED
Door Lock
0V ARM SENSE COM N.O N.C.
12V
LED
LED 1
LED
Net2 plus
12V DC
Data/D0
Clock/D1
Media Detect
0V
OK
12V
LED
TampLEDer sw2 itch (optional)
LED
12V DC
Data/D0
Clock/D1 Media Detect 0V
10 100
10/100 Ethernet
I
RS485
CAT5
TX
RX
Exit button (push to12V - 2m4V ake)
0V 0V
N.C.
N.O
1
COM
NormN.Ca. lly closed 2 dooN.Or contact
COM
(optional)
EXIT
12V
COM N.O N.C.
12V DC
LED 12V
0V
LED
LED 1
LED EXIT 0V
Data/D0
Clock/D1
Paxton Net2 plus
0V
12V LED
LED
2
LED
Data/D0
Clock/D1
0V
12V DC
0V
0V
I
RS485
CAT5
TX
RX
0V 10
100 10/100 Ethernet
1 2
EXIT
12V - 24V 0V
0V N.C. N.O COM N.C. N.O COM
12V LED
PSU
to next ACU
TCP/IP patch lead
1
Net2 APN-1012
Communication
By far the most common cause of problems with Net2 installations, is incorrect wiring of the data/network connection. When using an RS485 dataline, it is extremely important that the following simple rules are followed for each controller on the line and that the line is terminated correctly.
The data line must loop in and out of each controller using the same coloured cores for each unit. CAT5 colour codes are shown on the controller's wiring label. The controllers must be installed in one continuous daisy chain.
Any spare cores and the cable screen must be connected to the network screen terminal. This provides a common 0V reference for all of the controllers on the data line.
Termination resistors (120 ohm) must be linked across both data pairs at the beginning AND end of the data line. This can be done on many units with a switch or jumpers. If not, free resistors are provided with the data converter. If the converter is located at a point along the data line, termination will only be required in the two ACU's at each end of the line.
Net2 plus
A Net2 plus can connect to the Net2 PC using either a standard TCP/IP Ethernet RJ45 cable or an RS485 data line. This greatly increases the number of installation options available to the installer.
Net2 plus can also be used as the TCP/IP interface for a daisy chain of other Net2 plus or Net2 classic units.
A TCP/IP connection must first be detected using the Net2 Server Configuration utility in the same manner as a TCP/485 converter. When used on an RS485 data line, any required termination resistors are linked across the data pairs by a simple slide switch.
A dedicated Intruder Alarm connection is provided.
Net2 nano
The Net2 nano is a wireless based access control unit. It connects to the central administration PC using Paxton proprietary and secure wireless technology (Net2Air). Net2 nano control units can be mixed with other Net2 control units and so can be added to existing Net2 installations. The unit has a dedicated 12V DC lock output (incorporating an integrated diode), an Alarm output and a separate voltage free relay. Exit buttons, door contacts, tamper switches and mains failure alarms can all be connected.
Control units communicate to the PC via a Net2Air bridge. These come in USB and Ethernet variants so a site may be covered by several bridge units at different locations.
The Net2Air protocol is based on the standard known as IEEE 802.15.4. It operates at 2.4GHz and can co-exist with wireless LAN networks and other devices using this frequency.
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Net2 APN-1012
Installation of an ACU in a PSU enclosure
The best way to install a Net2 ACU is in the specially designed Paxton power supply enclosure. This unit contains a 2A 12V DC power supply, a charging circuit for battery back up and an enclosure tamper switch.
Alarm messages will be reported to the Net2 server if the lid of the ACU is opened (tamper) or if the mains supply to the unit fails (this alarm will only work successfully if battery back up is fitted).
12V 0V 12V 0V 12V 0V PSU 0V
12V DC Outputs
00VV 0V AArrmmARM SSenSnsEsNeSE CCOOCMMOM NN.O.ON...O
N.C.
1122VV LREeDd LED LAEmD ber LED
1 LGEDreen LED
DDaatata/D/D00 CClolocckk/D/D11 MDMeeetdedicaiat Detect 00VV
1122VV LREeDd LED
LAEmDber LED 2 LGErDeen LED
DDaatata/D/D00
CClolocckk/D/D11 Media DMeteedcita Detect 00VV
RReeaaddeerr 22
12V DC
Reader 1
12V DC
Cauttiioonn:: FFoorr 1122VV DDCC rreeaaddeerrss oonnllyy
Expansion
Set Set
IntrudIenrtrAuldaremr Alarm
Net2 plus
hhttttpp::////ppaaxxttoonn..ininffoo//110077
1
2345612
LA1B2E3L 4H5E6RE
00-01-02-03-04-05
2
OK
OOuuttpputs
Net2 plus
EXIT
OOrraannggee
WWhhtt//OOrrnngg
GGrreeeenn
WWhhtt//GGrrnn SSccrreeeenn oorr ssppaarree ccoorreess ffrroomm ddaattaa ccaabbllee
End of Line Termination
ION
OFF
SSeerrvveerr CCoonnnneecctteedd
SSeerrvveerr LLiin1n1kk0011010100000 1011/001//10100000EEEthtthheeerrrnnneeettt
RS4R8S548N5etwork
CCAATT55 CAaabbT5llee CCooddiinngg
TXTTxx
RXRRxx
PSU PPSSUU//TTaammppeerr
IInnppuuttss CCoonnttaacctt
Power Power DC Only
EExxiitt BBuuttttoonn
RRelay 2
Relay 1
121V2--221442VVV 00VV
00VV NN.C.C. . NN.O.O. CCOOMM NN.C..C. NN.O.O. COCMOM Alarm
12V12V LEGDreen LED
EXIT 0EVxit 0V0V
Contact 0V 0V 0V 0V
Tamper
PSPUSU
Tamper Switch
INPUT OUTPUT
AC 100-240V 50 / 60 Hz 1.2A DC 13.8V 2A
PSU
Mains failure monitoring
Back-up battery
12V
7Ah
MAINS POWER
Links to online documentation
For further information about a specific ACU or advice on the communication methods available, please see the following:
X Ins-30000 - Net2 classic quickstart guide < > X Ins-30080 - Net2 plus control unit < > X Ins-30075 - Net2 nano control unit < >
X AN1077 - Net2 plus - how does it work? < > X AN1095 - Net2 nano - how does it work? < >
X AN1040 - Installing a Net2 data line < > X AN1006 - Installing remote sites using TCP/IP < > X AN1096 - How to plan a Net2 nano installation < >
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