Gigabit inline PoE tester and detector - WiFI

Gigabit inline PoE tester and detector - WiFI
• 2 independent Volt and Ammeters for all
PoE methods. For measuring 802.3af, 802.3at,
passive and also DC power supplies.
• Mode A and Mode B displays
o Mode A displays the voltage on pins 12 and
36, also displays DC voltages
o Mode B displays the voltage on pins 45 and
Gigabit inline PoE
tester and detector
• 568A or 568B Inputs for Mode A
o RJ45 LEDs on each input RJ45 detect
polarity o If ON or Pulsing – change to the other
input RJ45 connector
o 568A expects 12+ and 36o 569B expects 12- and 36+
o Load side is always 568B ( 12- 36+ )
• Switch to Active mode to detect 802.3af
• 802.3af on / off – set to ON
o Emulates an 802.3af device in class 3 to
detect a PoE switch, will cause a PoE switch
to send power even if no device is
connected. Voltage will be displayed,
internal load is 300 mw.
o Will power a non-PoE device from a PoE
o Disables mode A ground return unless an
802.3af switch is detected for passive tests
• 802.3af on / off – set to OFF
No display until voltage is present – does not
change the class of the attached device.
Display is active once voltage is presented by
either a PoE switch or a passive PoE injector.
Connect an 802.3af or 802.3at load to initiate
power from a PoE switch. Passive PoE is
always on.
• 4 Display Modes
o Display A – shows the status of pins 1,2
and 3,6 from the RJ45 In to RJ45 Out
o Display B - shows the status of pins 4,5
and 7,8 from the RJ45 In to RJ45 Out
o Display A also shows the status from the
2.1mm DC plug In to DC plug Out
o Display B and A can operate at the same
time with different supplies in full isolation
• Voltage Range – 1% accuracy
o Mode A – 20 to 56 volts
o Mode B – 20 to 56 volts
o DC connector – 6 to 56volts
• Amps measured
o Mode A and Mode B – 0 to 500 ma
2% accuracy above 5 ma
o DC connector – 0 to 5 amps
2% accuracy above 50 ma
• Fuse protection
The RJ45 inputs are protected by a self
resetting 500ma fuse on each of the Mode A
and Mode B power pairs ( 12/36 and 45/78)
• Data compatibility:
o 10/100 and gigabit data rates are
supported in all modes
o Data passes without modification thru the
o An RF transformer separates the power data
data from all 4 pairs on the input, and reinserts power onto data at the output
o Measure power without interruption of
o Works with managed or unmanaged
Ethernet switches, or injectors
o Works with midspan or endspan PoE
• Expected Polarity on this device
o 568A expects + voltage on 12, - on 36
o 568B expects + voltage on 36, - on 12
o Mode B expects + on 45, - on 78
o The DC socket expects center +
o Reverse voltage does not harm the poe
o RJ45 LEDs pulse if voltage is reversed
• Battery Free operation
o The Tester requires just 4 ma for operation,
taking power from the PoE source
Connect the the PoE tester Source side to your
Switch or Injector. Try the 568A or 568B inputs to
see which works for you. Or use the included
2.1mm jumper cable for DC power supply testing
Display Cycle
Volts * Amps
Every 3 seconds the display cycles to a different
parameter. The top display is the Mode A and DC
input display, the bottom display is the Mode B
display. Mode B and A (or DC) can operate at the
same time.
Display Cycle :
802.3af Mode B vs Mode A
Mode A vs Mode B
Mode B uses pins
4,5 for + voltage
and 7,8 for return
Mode A uses pins
1,2 and 3,6 for
power and Data,
either polarity is
allowed since EIA
568A and 568B
are mixed in the
real world.
Display of Mode A
or 2.1mm DC values
Display of Mode B
568A/B inputs have no impact on mode B
power – but if the reverse polarity mode A Yellow
LED lights up – then unplug and test using the
other input on your PoE Tester.
568B output - The PoE Tester load side is 568B –
pins 1,2 are minus and 3,6 are plus.
Passive PoE - If the source is passive PoE – then
the voltage will be displayed with or without load.
568A and 568B inputs are provided for Mode
A operation. Note in the diagram above, that
pairs 1,2 and 3,6 can be swapped – and both are
legitimate Ethernet connection methods.
Therefore, somewhere in the wiring between the
PoE source and load, the polarity of power on 1,2
and 3,6 could be reversed.
Mode B PoE - Power and data will be passed thru
to the LOAD side of the tester. Use either the
568A or 568B input for Mode B. The Volts will be
displayed. Once current is flowing, Amps and
Power will be displayed.
Cambium/Canopy – these are mode B reverse
polarity – use our WS-CS-RJ45 (x2). If Mode B
power is reversed, then a Yellow LED will light.
802.3af Pass-Thru Mode – Set the 802.3af
switch to OFF. If the source is an 802.3af or
802.3at switch, then there will be no indication
until a compatible load device is connected.
Connect your PoE switch to either the 568A or
568B input. If you see a pulsing yellow light –
then move the source to other input. Once a
802.3af or 802.3at device is connected, the
display will start to show Volts, Amps, Watts.
802.3at - An 802.3at compatible PoE switch may
provide power on all 4 pairs of the Ethernet cable
– in this case – both displays will activate – and
the power will be the total of the two displayed
802.3af Simulate Mode - Set the 802.3af switch
to ON. If the source is an 802.3af switch, then the
display will be active even without a load.
Connect your PoE switch to either the 568A or
568B input. If you see a pulsing blue light – then
move the source to other input. Once any load is
connected, the display will start to show Volts,
Amps, Watts. Note, this operation enables a nonPoE device to receive power from a PoE switch.
Once power is flowing to the device, the PoE
tester will display the Volts (U) the Amps (A) and
Volts * Amps as Power (P). The current is
measured on the ground return from the load RJ45
to the source RJ45 connector, or from DC out to
DC in.
DC connector – A power supply can be tested
with this device. Connect the 2.1mm Source
connector to the PoE tester, the voltage will be
displayed. Connect the load side to the device to
be powered, the results will be displayed on the
Mode A display.
Note – it is possible to use the DC connector and
Mode B at the same time.
2.1mm jumper - an 7.5 inch 2.1mm jumper is
included for testing DC power supplies from 6 to
56 volts.
USB voltage Tester – please see our 5v USB
inline tester for 5 volt USB applications.
DC input
EIA 568B
EIA 568A
reverse indicators are in the RJ45
Operation with WiFi-Texas dual power supply
Injectors: Like WS-GPOE-12-1U or WS-POES8-7.
o If only mode A power is provided, compare
the current flowing into the DC connector
with the total load, since some current
might bypass the A mode sensor and flow
undisplayed via the B mode path.
o If only mode B power is provided, set the
802.3af switch to “ON” - this will direct all
current into the Mode B signal path.
o If both A and B power is provided, add the A
and P values together to record the total.
Normally, all current will be directed to the
A mode return path.
EIA 568B DC output Switch
Technical Support - for any questions, please
contact us via email or skype, we are based in
Austin Texas and offer expert technical support,
solutions and consulting. is our web site for PoE
solutions – you can look up the devices you need
to power and see the best solution for that device.
See also our multi port gigabit
PoE injectors and switches
WiFi-Texas DC-DC Converters
24v Passive PoE
5v 10w out
12v 10w out
48v 10w out
5v 10 w out
12v 12w out
24v 15w out Inc
815-A Brazos #326
Austin Tx 78701
512 479 0317
Skype: wifiqos
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