Axis 5031-241 User Manual

INSTALLATION GUIDE

AXIS T81B22 DC 30W Midspan

ENGLISH

About this Document

Korea -

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ࠇ߾۰یࡈଟܹ࢑ݡТЬ

Japan -

この装置は、クラスB 情報技術装置です。
この装置は、家庭環境で使用することを目 的として
いますが、この装置がラジオやテレビジョン受信機
に近接して使用されると、 受信障害を引き起こすこ
とがあります。 取扱説明書に従って正しい取り扱い
をして下さい。

This document includes instructions for
installing AXIS T81B22 on your network.
Previous experience of networking will be
beneficial when installing the product.

Electromagnetic Compatibility
(EMC)

This equipment has been designed and
tested to fulfill applicable standards for:

• Radio frequency emission when
installed according to the instructions
and used in its intended environment.

• Immunity to electrical and
electromagnetic phenomena when
installed according to the instructions
and used in its intended environment.

USA - This equipment has been tested
using a shielded network cable (STP) and
found to comply with the limits for a
Class B digital device, pursuant to part 15
of the FCC Rules. These limits are
designed to provide reasonable protection
against harmful interference in a
residential installation.
Canada - This Class B digital apparatus
complies with Canadian ICES-003.
Europe - This digital equipment
fulfills the requirements for RF emission
according to the Class B limit of EN

55022.

Australia - This digital equipment fulfills
the requirements for RF emission
according to the Class B limit of AS/NZS
CISPR 22.

Safety

This product complies to EN/IEC 60950-1,
2nd edition, Safety of Information
Technology Equipment.
The product’s data and data/power

interfaces are qualified as SELV (Safety
Extra-Low Voltage) circuits according to
IEC 60950. These interfaces can only be
connected to SELV interfaces on other
equipment.

WEEE Directive

The European Union has enacted a
Directive 2002/96/EC on Waste
Electrical and Electronic Equipment
(WEEE Directive). This directive is
applicable in the European Union member
states.
The WEEE marking on this product (see
right) or its documentation indicates that
the product must not be disposed of
together with household waste. To
prevent possible harm to human health
and/or the environment, the product
must be disposed of in an approved and
environmentally safe recycling process.
For further information on how to dispose
of this product correctly, contact the
product supplier, or the local authority
responsible for waste disposal in your
area. Business users should contact the
product supplier for information on how
to dispose of this product correctly. This
product should not be mixed with other
commercial waste.

Support

Should you require any technical
assistance, please contact your Axis
reseller. If your questions cannot be
answered immediately, your reseller will
forward your queries through the
appropriate channels to ensure a rapid
response. If you are connected to the
Internet, you can:

• download user documentation and
firmware updates

• find answers to resolved problems in
the FAQ database. Search by product,
category, or phrases

• report problems to Axis support by
logging in to your private support area at
www.axis.com/techsup.

Safeguards

Please read through this Installation Guide carefully before installing the
product. Keep the Installation Guide for further reference.

Caution!

• Store the Axis product in a dry and ventilated environment.

• Use only accessories that comply with technical specification of the

product. These can be provided by Axis or a third party.

• Do not attempt to repair the product by yourself, contact Axis or

your Axis reseller for service matters.

IMPORTANT!

• This product is intended for indoor use.

• DC Power Cable Set - the power cable must be rated for a minimum

current capacity of 3 amps (minimum 0.5mm2, AWG24).

• Use a limited power source, such as a mains adaptor, with rated

power output not exceeding either 100 W or 5 A.

• The DC power source must be near the AXIS Midspan and easily

accessible. You can disconnect DC power from the AXIS Midspan by
disconnecting the DC power cable from either the power source or
the AXIS Midspan.

• Voltage mismatch can cause equipment damage and may pose a fire

hazard. If voltage indicated on the label is different from power
source voltage, do not connect the Midspan to this power source.

• The Midspan "Data In" and "Data & Power Out" ports are shielded

RJ-45 data sockets. They cannot be used as Plain Old Telephone Ser­vice (POTS) telephone sockets. Only RJ-45 data connectors may be
connected to these sockets.

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 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.

AXIS T81B22 DC 30W Midspan Page 5

AXIS T81B22 DC 30W

Midspan

The AXIS T81B22 DC 30W Midspan injects 51V DC power into the spare
pairs of the Ethernet cabling. It complies with both IEEE802.3af and
IEEE802.3at standards. These power levels allow a new range of
Ethernet-based applications such as PTZ Cameras to use the Midspan.

Package contents

AXIS Midspan AXIS T81B22 DC 30W Midspan

Power connections Terminal block

Printed material Installation guide (this document)

Warranty document

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Page 6 AXIS T81B22 DC 30W Midspan

Input

Camera/splitters

Data and

Data in

Port connectivity
indicator

DC Input connectivity
indicator

DIN Rail

12/24V DC

Power out

Power Selector (see table)

30W 15W

Installation

1. Set the Power Selector to the correct setting (15/30W).

2. Connect the AXIS T81B22 to a DC limited power source (LPS, 12/24V
DC).

3. Connect the unit Data In jack (In) to your remote Ethernet network
switch using a shielded Ethernet cable.

4. Connect the Data & Power Out jack (Out) to your Axis splitter or
camera, using a shielded Ethernet cable.

AXIS T81B22 DC 30W Midspan Page 7

Power Selector

Important!

Before the unit is powered on, the power selector must be set in the
correct position.

Power selector PoE standard Power

30W

15W

IEEE802.3at

IEEE802.3af 20W

38W (12V DC source only)

Indicators

LED Color Indication

Port Unlit No camera connected

Steady green Camera connected, normal behavior

Steady yellow Camera connected, normal behavior

Green/yellow 1 Hz blinking Over current or short circuit condition

Green/yellow 4 Hz blinking PSE input voltage out of range or

DC input Steady green DC power connected

802.3af (15W)

802.3at (30W)

on the port

other internal fault

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Page 8 AXIS T81B22 DC 30W Midspan

A

B

D

c

Mounting instructions

The AXIS T81B22 may be wall or bench mounted using the rear side
holes. It can also be mounted on a DIN rail.

Note the following before mounting the AXIS T81B22:

• Do not cover the midspan or block the airflow to the product with any

foreign object. Keep the midspan away from excessive heat and
humidity, and free from vibration and dust.

• Ensure that the cable length from the Ethernet network source to

your Axis video product does not exceed 100 meters (330 feet). See
page 9 for information on cable lengths. The midspan is not a repeater
and does not amplify the Ethernet data signal.

• Use a splitter if required, but ensure that the splitter is connected

close to your Axis video product and not to the Midspan.

• There is no "on-off" switch; simply plug the AXIS T81B22 into a DC

power outlet.

To mount:

1. Install two screws vertically at a distance of 65 mm
(2.5”) on the wall or shelf.

2. Align the AXIS T81B22 mounting slots to capture the
surface screws

A 6 to 7 mm (0.23" to 0.27")

B max 2.5 mm

C 2 mm to 3 mm (0.059" to 0.098")

D 3.0 mm (0.12")

AXIS T81B22 DC 30W Midspan Page 9

Specifications

Environmental

Mode Temperature Humidity

Operating -20 to 65°C

Storage -40 to 74°C

-4 to 149°F

-24 to 158°F

Electrical

DC Input voltage 12VDC (10.2-14.4V DC), max. 38W

Input current Max. 3.2A @ 12V DC

Maximum available output power 52V DC @ 12/24V DC in (max. 30/15W)

Nominal output voltage 51V DC @ 12/24V DC

Ethernet cable length 802.3at device:

24VDC (20.4-28.8V DC), max. 20W

Max. 1.6A @ 24V DC

• 70m/230ft (Cat5)

• 100m/330ft (Cat5e/6)

802.3af device: 100m

Ethernet interface

Input (Data In): Shielded RJ-45 EIA 568A and 568B

Output (Data & Power Out): Shielded RJ-45 EIA 568A and 568B

Wiring Data provided over pairs 1/2 and 3/6 for 10/100

Network cable Shielded category 5 (or higher)

Ethernet
Power over spare pairs 4/5 (+) and 7/8 (-)

Using a Cat 5e/6 is recommended while
powering an 802.3at device.

max 95% (non-condensing)

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Page 10 AXIS T81B22 DC 30W Midspan

Troubleshooting

Symptom Corrective steps

Midspan does
not power up

A port indicator
is not lit and the
PD (powered
device) does not
operate

The end device
operates, but
there is no
data link

1. Verify that the voltage at the power inlet is either 12V
DC or 24V DC for Input voltage.

2. Remove and re-apply power to the device and check the

LED indicators during power up sequence.

1. The Midspan did not detect a PD; and the port is not
enabled.

2. Verify that the PD 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 an external PoE device connected, replace it to

verify that it is functioning properly.

5. Ensure that the input Ethernet cable is connected to the

Data In port.

6. V erify th at the PD is conne cted t o the Data & Power port.

7. Try to reconnect the same PD into a different Midspan. If

it works, there is probably a faulty port or RJ-45
connection.

8. Verify that there is no shortcut over any of the twisted

pair cables or over the RJ45 connectors.

1. Verify that the port indicator on the front panel is
continuously lit.

2. If an external PoE device is in use, replace it with a good

PoE device.

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 (333 feet) from the Ethernet source to the
powered device. See Ethernet interface, on page 9.

5. Try to reconnect the same PD into a different Midspan. If

it works, there is probably a faulty port or RJ-45
connection.

Installation Guide Ver.1.0

AXIS T81B22 DC 30W Midspan Printed: March 2012

© Axis Communications AB, 2012 Part No. 46921