INSTALLATION GUIDE
AXIS T8120 Midspan 15 W 1-port
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AXIS T8120 Installation Guide
Page 3
AXIS T8120 Installation Guide
Safety Information
• When transporting the Axis product, use the original packaging or
equivalent to prevent damage to the product.
• Store the Axis product in a dry and ventilated environment.
• Avoid exposing the Axis product to vibration, shocks or heavy pres-
sure and do not install the product on unstable brackets, since this
could cause damage to the product.
• Do not attempt to repair the product by yourself, contact Axis or
your Axis reseller for service matters.
• The product should connected to PoE networks only, without rout-
ing to the outside plant.
• Only qualified personnel can install or remove the product.
• The power cord must have regulatory agency approval for the spe-
cific country in which is used, (for example UL, CSA, VDE on).
• The power cord must be a three-conductor type (two current car-
rying conductors, one ground conductor) terminated on one end by
an IEC 60320 appliance coupler (for connecting to the product) and
on the other end by a plug containing a ground (earthing) contact.
The power cord must be rated for a minimum of 250 V AC RMS op-
eration, with a minimum rated current
capacity of 5 amps (or a minimum wire gauge of 18 AWG (0.75
mm2).
• A product installed in Australia requires power cords with a
minimum wire gauge of 16 AWG (1.0 mm2).
• The products “DATA IN” and “DATA & POWER OUT” ports are shield-
ed RJ45 data sockets. They cannot be used as Plain Old Telephone
Service (POTS) telephone sockets. Only RJ45 data connectors can
be connected to these sockets.
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Page 4
AXIS T8120 Installation Guide
• The AC wall socket outlet must be near the product and easily ac-
cessed. AC power can be removed from the product by disconnect-
ing the AC power cord from either the wall socket-outlet or from
the products appliance coupler.
• The products “DATA IN” and “DATA & POWER OUT” interfaces are
qualified as Safety Extra-low Voltage (SELV) circuits according to
IEC 60950-1. These interfaces can only be connected to SELV
interfaces on other equipment.
• The product should only be connected to the IP device with which
it was bought. Using the product with other IP devices can cause
damage to the IP device.
• Follow basic electricity safety measures whenever connecting the
device to its power source.
• Read the installation instructions before connecting the product to
its power source.
• A voltage mismatch can cause equipment damage and may pose a
fire hazard. If the voltage indicated on the label is different from
the power outlet voltage, do not connect the product to this power
outlet.
• The product can be used only in Restricted Access Locations.
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AXIS T8120 Installation Guide
Functions and Features
Page 5
The Power over Ethernet (PoE) Midspan adds 48V DC to unused (non-
data) wires (Mode B) in a standard Category 5 Ethernet cable. As a
result, the PoE Midspan delivers both data and power to the terminal.
The device is designed to meet the IEEE802.3af standard.
Preliminary steps
• Ensure AC power is applied to the PoE Midspan using an
operational AC cable with an appropriate ground connection.
• Ensure that output Ethernet cable is connected to the
Data & Power Out port.
• Verify that a power ready Ethernet compatible device is connected.
Note: Do not use a cross over cable between the PoE Midspan output port
and the load device.
Mounting
Note the following before mounting the PoE Midspan to a fixed location:
• The PoE Midspan may be wall or bench mounted using the rear
side holes.
• Do not cover the PoE Midspan or block the airflow to the PoE with
any foreign objects. Keep the PoE Midspan away from
excessive heat and humidity, and keep it free from vibration
and dust.
• Ensure that the cable length from the Ethernet network source to
the terminal does not exceed 100 meters (333 ft). The PoE is not a
repeater and does not amplify the Ethernet data signal.
• Use a splitter if desired, ensure that the splitter is connected close
to the terminal and not on the Midspan.
• There is no "on-off" switch, simply plug the PoE Midspan to an
AC power source.
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Page 6
AXIS T8120 Installation Guide
Installing the Unit
1. Connect the PoE Midspan to an AC outlet (100-240 V AC), using a
standard power cable.
2. Connect the unit Data In jack (input) to the remote Ethernet
network switch Patch panel.
3. Connect the Data & Power Out jack (output) to the terminal.
Hardware Overview
Port connectivity
indicator
Data and Power out
Data in
CAT 5 Cab le
Output port
Terminal
Input port
Ethernet
Indicators
LED
Indicated Behavior
Power is on (power is active)
A remote terminal is connected
Overload state or short-circuit
Yellow On
Green On
Green Blinking
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AXIS T8120 Installation Guide
Page 7
Specifications
Environmental Specifications
Mode
Temperature
Humidity
0 °C to 40 °C (32 °F to 104 °F)
-20 °C to 70 °C (-4 °F to 158 °F)
Operating
Storage
10 to 90% RH (no condensation
allowed)
Electrical Specifications
100 to 240V AC (50/60 Hz)
0.5 A (maximal)
Input voltage
Input current
Available Output Power (Maximum)
Nominal Output Voltage
16.8 W
48V DC
Ethernet Interface
Input (Data In): Ethernet 10/100Base-T
Output (Data & Power Out):
RJ45 female socket
RJ45 female socket, with DC
voltage on wire pairs 4-5 and 7-8.
Ethernet 10/100Base-T, plus 48 VDC
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Page 8
AXIS T8120 Installation Guide
Troubleshooting
Symptom
Corrective Steps
Midspan does not power up 1. Verify that an approved power cord is used.
2. Verify that the voltage at the power inlet is
between 100 and 240V AC.
3. Remove and re-apply power to the device and
check the indicators during power up sequence.
A port indicator is not lit 1. The Midspan did not detect a device and
and the Midspan does not
operate
therefore the port is not enabled.
2. Verify that the device is designed for PoE
operation
3. Verify that you are using a standard Category 5/
5e/6, straight-wired cable, with four pairs
4. If there is a connected external power splitter,
replace it to verify that it is functioning properly
5. Ensure that the input Ethernet cable is connected
to the Data In port
6. Verify that the device is connected to the Data &
Power port.
7. Try to reconnect the same device into a different
Midspan. If it works, there is probably a faulty
port or RJ45 connection.
8. Verify that there is no short over any of the
twisted pair cables or over the RJ45 connectors.
The end device operates, but 1. Verify that the port indicator on the front panel is
there is no data link
continuously lit.
2. If an external power splitter is in use, replace it
with a known-good splitter.
3. Verify that for this link, you are using standard
UTP/FTP Category 5 straight (non-crossover)
cabling, with all four pairs.
4. Verify that the Ethernet cable length is less than
100 meters from the Ethernet source to the load/
remote terminal.
5. Try to reconnect the same device into a different
Midspan. If it works, there is probably a faulty
port or RJ45 connection.
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Liability
Every care has been taken in the preparation of this document. Please inform your local Axis
office of any inaccuracies or omissions. Axis Communications AB cannot be held responsible for
any technical or typographical errors and reserves the right to make changes to the product and
documentation without prior notice. Axis Communications AB makes no warranty of any kind
with regard to the material contained within this document, including, but not limited to, the
implied warranties of merchantability and fitness for a particular purpose. Axis Communications
AB shall not be liable nor responsible for incidental Support or consequential damages in
connection with the furnishing, performance or use of this material. This product is only to be
used for its intended purpose.
Notice
Axis’ policy is to improve its products as new technology, components, software, and firmware
become available. Axis, therefore, reserves the right to change specifications without prior
notice.
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Installation Guide
Ver.2.1
Printed: October 2014
Part No. 60330
AXIS T8120 15W Midspan 1-port
© Axis Communications AB, 2012-2014
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