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The 828 Gigabit extender is very straightforward when it comes to troubleshooting your device. Isolating an issue with either the 828, your wiring, or power can be done in a few simple steps.

1) Check to make sure your 828 is powered on either by your gigabit PoE Ethernet switch, 5v DC power adapter, 360 PoE+ Injector, or other 802.3at/802.3af Injector/Midspan. The green power light should be lit on the left hand side of the device next to the LAN & PoE In port.

2) If your 828 is receiving adequate power, next check to make sure you have solid connections on your backbone wiring pairs. Remember that the 828 requires 4 pairs of wire to function properly passing PoE+ / data to your remote LAN extension. Check that all RJ-45 connections are firm and that there are no bent pins.

3) Once your wiring connections have been checked, observe your LAN equipment on both the central office and remote location ends. Check to make sure that both ends have a gigabit connection and that the 828 lights are showing a gigabit connection is present. The following explains what each light represents:

LAN & PoE IN LED Indicators:
- Solid Yellow LED (left side of RJ-45 port) indicates Gigabit Ethernet connectivity detected.
-Flickering yellow represents LAN traffic.
-No LED lit (right side of RJ-45 port) indicates 10Mbs or 100Mbs Ethernet connectivity detected.

LAN & PoE Out LED Indicators:
- Solid Yellow LED (left side of RJ-45 port) indicates Gigabit Ethernet connectivity detected.
-Flickering yellow represents LAN traffic.
- Solid Green LED (right side of RJ-45 port) indicates 100Mbs Ethernet connectivity and activity.
- No LED lit (right side of RJ-45 port) indicates 10Mbs Ethernet connectivity.

4) Keep in mind that the 828 requires 4-pair wiring to operate and will need CAT5e or CAT6 or better to extend your gigabit connection and/or PoE+. Pins 1, 2, 3 & 6 are designated for 10/100/1000 Mbs Data whereas pins 4, 5, 7 & 8 are used to pass 1000Mbs Data & PoE+.

5) If you have a desired PoE+ device on the remote end that requires power via PoE+ then you must toggle the DIP switches on the right hand side of the 828 to allow PoE+ to pass-through. The PoE+ can only be extended using the 360 PoE+ Injector or your gigabit PoE Ethernet Switch in combination with the 828. The following explains the DIP switch settings:

DIP Switch Settings: 4 DIP switches are provided on the right hand side of the 828 in between LAN 1 & PoE Out Port and LAN 2 & PoE Out Port for toggling PoE output power On or Off.

Default DIP Switch Settings: PoE Disabled on the LAN Out ports. DIP position 1, 2, 3 & 4 are UP (OFF – PoE Disabled)

DIP Switch Settings w/ PoE Enabled: To enable PoE to pass-through LAN 1 & LAN 2 output ports to the desired PoE device you must toggle the DIP switches to the Down position (ON). LAN 1 & PoE Out Port is controlled by DIP Switches 3 & 4. (3 & 4 – Up: PoE Disabled, 3 & 4 – Down: PoE Enabled). LAN 2 & PoE Out Port is controlled by DIP Switches 1 & 2. (1 & 2 – Up: PoE Disabled, 1 & 2 – Down: PoE Enabled).

Will the 828 work with any manufacturer’s wireless Access Point?

Yes, if you are using an IEEE 802.3at standard PoE+ injector or PoE midspan switch. You can also use an IEEE 802.3af standard PoE injector or midspan. IEEE 802.3af and IEEE 802.3at standards pass power over Ethernet on pins 4, 5, 7 & 8. Using a straight through CAT5e cable for PoE - Pins 1,2,3, and 6 carry the data while pins 4,5,7 & 8 carry PoE+. PoE injectors typically come in 24, 48 & 56V variations. PoE equipment on the other hand can be any voltage up to 56V. Each PoE equipment manufacturer has a built in regulator that takes whatever voltage coming into the device from the PoE/Data cable and conditions the voltage down to what it needs to operate.

Voltage drops over distance using any Category rated cable. At a distance for 200meters, you lose approximately 4-6 volts. With 48V DC power, that leaves you at 42 volts. You can determine the amount of voltage drop over a distance by finding the resistance of the cable for a specific temperature (given in ohms/1000ft) from the cable manufacturer or electrical wholesaler. If you know the largest amount of current that will flow in the cable, then use the formula: Vdrop = Current x Distance (ft) x 2 x Ohms per 1000ft.

As a rule of thumb you will lose 6V per every 100-200ft of wiring depending on the gauge of the cable. Lower power also means more amperage, which means more heat and perhaps issues with the 24 gauge wires in Cat 5. You may need to use 18 gauge wiring if applicable. For all intensive purposes, anything greater than 400ft use a 48V PoE source.