Internal Jumpers
Power over Ethernet (PoE)
The LPS1000A media converter transmits electrical power along with data to
remote devices over standard twisted-pair cable in an Ethernet network.
Note:
Legacy powered devices that are not IEEE802.3af compliant can be power
provided that the polarity matches that list below.
There are two modes of transmitting 48VDC PoE as defined in IEEE 802.3af:
Alternative A
(default)
uses pins 1&2(+), 3&6(-) to transmit data and power.
Alternative B uses pins 4&5(+), 7&8(-) to transmit power without data. These are
the spare pairs in 10BASE-T and 100BASE-TX device configurations; therefore,
Mode B requires a 4-pair cable.
To set A or B PoE alternatives, do the following:
1. Remove the 4 screws on the and then remove the cover from the media
converter.
2. Locate the 3 header connects J2, J3, and J4 on the circuit board.
3. Set jumpers 2, 3, and 4 to the same side, either (A or B). See diagram below.
10
LPS1000A
24-hour Technical Support: 1-724-746-5500
A
B
J4
A
B
J3
A
B
(Default)
Alternative A
Alternative B
J2
1
2
3
1
2
3
1
2
3
Pin Numbers
A
B
J4
A
B
J3
A
B
J2
1
2
3
1
2
3
1
2
3
AutoCross
POE PSE legacy detection
J8
1
2
3
AutoCross
Disabled
(Default)
Enabled
J8
1
2
3
J9
1
2
3
POE PSE Legacy detection
(Default)
J9
1
2
3
Legacy Large Capacitor Detect Mode
No Jumper: Legacy Bias Current Detect Mode
1
2
3
J9
24-hour Technical Support: 1-724-746-5500
11
Operation
LEDs
See individual LPS1000A faceplate for LED placements. The table below explains
what the LED functions indicate.
LEDs
Description
TP Link/Activity
Green:
1000Mbs: ON link, BLINK activity
Yellow:
10 or 100Mbs: ON link, BLINK activity
TP Duplex
Green:
Full duplex
Yellow:
Half duplex
TP PSE
Green:
Flashing indications every 1.2 seconds
OFF:
Not powering an end device
ON Steady: Powering an end device
1 flash:
End device signature resistance is to low
(300
ohm to 15K ohm detected)
2 flashes:
End device signature resistance is to high
(33K
ohm to 500K ohm detected)
5 flashes:
Power overload fault
Fiber
Link/Activity
Green
1000Mbs: ON link, BLINK activity
Yellow
10 or 100Mbs: ON link, BLINK activity
Power
Green
Power ON