American Fibertek N-TAH User Manual
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N-TAH User’s Manual
Revision 11/22/2013
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WARRANTY INFORMATION
American Fibertek, Inc warrants that at the time of delivery the products delivered will be
free of defects in materials and workmanship. Defective products will be repaired or
replaced at the exclusive option of American Fibertek. A Return Material Authorization
(RMA) number is required to send the products back in case of return. All returns must
be shipped prepaid. This warranty is void if the products have been tampered with. This
warranty shall be construed in accordance with New Jersey law and the courts of New
Jersey shall have exclusive jurisdiction over this contract. EXCEPT FOR THE
FOREGOING WARRANTY, THERE IS NO WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR
OTHERWISE, EXPRESSED OR IMPLIED, WHICH EXTENDS BEYOND THE
WARRANTY SET FORTH IN THIS AGREEMENT. In any event, American
Fibertek will not be responsible or liable for contingent, consequential, or incidental
damages. No agreement or understanding, expressed or implied, except as set forth in this
warranty, will be binding upon American Fibertek unless in writing, signed by a duly
authorized officer of American Fibertek.
© Copyright 2012 American Fibertek, Inc.
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Table of contents
Introduction................................................................................................................4
Overview
Package Checklist
Product Features
Product Specifications
Getting Started ...........................................................................................................7
Panel Layout
Connecting the Hardware
LED indicators
Real-time clock
Initial IP configuration.............................................................................................. 13
Factory default IP
Reset sequence
NTP/timeserver configuration
Operating modes......................................................................................................17
Overview
Alarm input forwarding
Aux outputs
Pilot interface
Web Interface............................................................................................................22
Connecting to the N-TAH
Interface layout
Operator setup
Global settings
IP Ethernet Setup
NTP Setup
Alarm Setup
Aux Setup
Watchdog
Probe Setup
Upload Firmware
SNMP
Reboot Net I/O
Pinouts and connectors...........................................................................................36
Power
Ethernet
Aux/Alarm
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1
Introduction
Overview
Package Checklist
Product Features
Product Specifications
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Overview
Thank you purchasing your American Fibertek N-TAH. Please take a few minutes to
read these installation instructions in order to obtain maximum performance from this
product.
The AFI N-TAH device allows contact closure signals to be made accessible on and
linked over a network, with N-TAH devices acting as transparent bridges to link together
customer equipment. This permits contact closure signals – such as door opening
sensors, alarm buttons, or motion detectors – to be linked to remote alarm annunciation.
The N-TAH provides aux output relays which may be activated by alarm input events or
direct network commands. N-TAH devices can be linked together over a standard
Ethernet connection, making it possible to use a pre-existing LAN or the Internet for
device communication.
The N-TAH has a watchdog feature which allows it to monitor the function of up to two
network connected devices. The N-TAH can monitor a network device by periodically
sending ping requests to the device over the network. After a number of pings without
responses from the target device, the N-TAH takes an action which can be configured by
the user. This action can consist of either setting an aux contact output on the N-TAH
for a set period of time, sending a TCP message over the network to a user-defined
destination, or sending an alarm email to a user-supplied address
This feature permits the N-TAH to monitor an external piece of network-connected
equipment, and on detection of a failure trigger an alarm, notify a technician, or powercycle an external device through a relay.
The N-TAH also acts as an environmental sensor which is capable of monitoring the
temperature, relative airflow, and humidity at the location where the unit is installed.
The N-TAH is powered either from a PoE source over the UTP cable or from a 12Vdc
power supply which is provided with the unit.
Product Features
Auto-detect 10/100 Ethernet connection
2 Contact outputs (Normally Open NO and Normally Closed NC)
2 Alarm inputs (configurable as NO/NC)
Environmental monitoring of ambient temperature, humidity, and relative airflow
Alarm transmission over network with verification and retry
Package Checklist
N-TAH
Installation guide
Power supply 12Vdc/1.2A
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Product Specifications
LAN
Ethernet 10/100 Mbps, RJ45
Protection 1500KV magnetic isolation
Contact closures
Contact type NO and NC
Number of contact outputs 2
Current rating 1A
Voltage rating 42VDC
29VAC RMS
Battery backup
Real-time clock 10 years
User settings Indefinite
Power requirements
Connector type Screw terminal block
Power input voltage 12 VDC
Power required 5W maximum
POE class Class 0
POE type 802.3af
Mechanical
Dimensions 4.43” x 4.175” x 1.125”
113mm x 106mm x 29mm
Weight 8 oz (0.226kg)
Mounting Surface mount
Environmental
Storage temperature -20C to +85C
Operating temperature -40C to +75C
Operating humidity range 10 - 95%RH
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Getting Started
Panel Layout
Connecting the Hardware
LED indicators
Real-time clock
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Panel Layout
N-TAH Front
N-TAH Rear
Connecting the Hardware (See photo on the next page)
Connecting power
The N-TAH has a two position screw terminal which accepts input from an external
12VDC power supply. To connect an external power supply, use two wires, 16-28 AWG
in size. Strip about ¼” of the insulation from the end of the wires before inserting them
into the terminal block. Tighten the terminal screws to secure the wires in the terminal
block. Be sure that the polarity of the applied power is as indicated. Connecting power
with incorrect polarity may damage the N-TAH.
The N-TAH is also capable of being powered over the network connection through
802.3af Power over Ethernet (PoE). To power a N-TAH over POE connect one end of
an Ethernet cable to the N-TAH’s Ethernet port and the other end to a PSE network
switch, midspan injector, or similar device capable of providing power over an Ethernet
connection in accordance with the 802.3af POE standard. When used in this
configuration the DC power input terminal block should not be connected to a power
supply.
Connecting to the network
Connect one end of an Ethernet cable to the N-TAH’s Ethernet port and the other end of
a cable to the Ethernet network.
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Connecting contacts
The N-TAH has two ports for contact input (alarms) and contact output (aux). These
ports are five pin headers with supplied plugs with screw terminals. Customer
connections to the contact ports are made by securing stripped wire ends into the screw
terminals.
Note: All connections to the screw terminals should be made with the terminal plug
removed from the unit, and with power disconnected from any customer equipment
being connected to the terminals.
Connecting an alarm input
The contact blocks have two terminals which are used as an alarm/contact input.
Viewing the left side of the N-TAH, these two terminals are the two on the left side of
each contact block. These terminals are intended to be connected to customer
equipment which will make or break a connection between the two terminals, such as a
door open switch or motion detector contact output. It can be designated through the
configuration web page if an alarm condition will correspond to the connection being
made or the connection being broken.
To connect an alarm source such as a door switch or motion detector to the N-TAH, use
two wires, 16-28 AWG in size. Strip about ¼” of the insulation from the end of the wires
before inserting them into the terminal block. Tighten the terminal screws to secure the
wires in the terminal block.
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Note: the electrical connection to the alarm inputs are to be connected only to dry
(relay) contact closure devices, and must not be directly connected to any external
power or ground source. Directly connecting either terminal of the alarm input to any
voltage source or external ground may damage the N-TAH.
Connecting a supervised contact
In supervised contact mode a 1K resistor is connected in series with the contact closure.
This resistor should be located at or close to the contact device, so that short circuits
and open circuits across the contact lines will be detected. A valid contact closure will
be registered only when the resistance across the contact input lines is measured to be
1K ohm.
Connecting an aux output
The contact blocks have three terminals which are used for the aux contact out function
The contact outputs are form C contact closures.
To connect an external device to an aux contact out on the N-TAH, use two wires, 16-28
AWG in size. Strip about ¼” of the insulation from the end of the wires before inserting
them into the terminal blocks. Tighten the terminal screws to secure the wires in the
terminal block.
Aux Contact Out
When an output is not active, the Common terminal will be electrically connected inside
the N-TAH to the Normally Closed terminal. When the output becomes active, the
connection between the Common terminal and the Normally Closed terminal will be
broken, and a connection will then be made inside the N-TAH between the Common
terminal and the Normally Open terminal.
The Aux Output terminals are electrically isolated from the N-TAH and from each other,
and can be safely connected to external power sources or grounds.
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LED indicators
Within 5 seconds of the power cable being connected, the N-TAH will perform a self test
of its front panel indicator LEDs. The LEDS will first light green, then red, then turn off.
Once the sequence has finished the LEDs will resume their normal function and the unit
will be ready for use.
The N-TAH has six LED indicators on the right side of the unit. The action of individual
LEDS is as follows:
Power indicator LED
The upper right LED is the Power Indicator. This LED indicates that power is applied to
the unit. During initial powering up of the unit, the power LED will briefly flash green,
then red for a moment. It should then light green and remain green while the unit is on.
Probe LED
The lower right LED indicates the status of the environmental probe function. During
initial powering up of the unit, this LED will briefly flash green, then red for a moment. If
any of the measured environmental conditions exceed their warning or alarm thresholds,
this LED will then illuminate red, otherwise it will illuminate green.
Alarm LEDs
The top center and top left LEDs indicate the status of the alarm inputs. During initial
powering up of the unit, these LEDs will briefly flash green, then red for a moment. They
will then be illuminated red if the corresponding alarm input is active, or off when the
corresponding alarm input is not active.
Aux Status LEDs
The bottom center and bottom left LEDs indicate the status of the aux contact outputs.
During initial powering up of the unit, these LEDs will briefly flash green, then red for a
moment. They will then be illuminated green if the corresponding aux contact output is
active, or off when the corresponding aux contact output is not active.
Real-time clock
The N-TAH’s real-time clock and calendar (RTC) uses a lithium battery to retain time
and date settings while the unit is not powered. It is strongly recommended that you not
attempt to replace this battery without technical assistance from AFI.
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Initial IP configuration
Factory default IP
Reset sequence
NTP/timeserver configuration
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Factory default IP
The N-TAH is factory programmed with the following default network settings:
IP address
192.168.0.246
Netmask
255.255.255.0
Gateway
192.168.0.143
DNS
None programmed
If the N-TAH has not had its IP address changed by the user it will be possible to
connect to it at this network address. If you do not know the IP address of the unit, you
can reset the unit back to factory defaults and then connect at the default address.
Reset sequence
If the IP address or username and password to log in are not know, it will be necessary
to reset the N-TAH to factory defaults in order to access the administration web
interface. The reset procedure will set all unit settings to their factory defaults.
To reset the N-TAH perform the following steps:
Disconnect power from the N-TAH.
With a paperclip or other small object, press and hold the reset button.
Connect power to the N-TAH.
Wait ten seconds.
Release the reset button.
The N-TAH will now be reset to factory default configuration. This will reset all userconfigurable settings, including network address, username and password, and all
contact and serial interface settings.
NTP/timeserver configuration
The N-TAH has a real time clock/calendar which keeps track of the current Coordinated
Universal Time (UTC). This battery-backed time and date setting can be updated by
regular Network Time Protocol (NTP) packets from a server connected to the same
network as the N-TAH. Alternately, the N-TAH can be set to actively connect to a UTC
server for routine clock/calendar updates. The default setting is to accept NTP packets.
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