User Manual

User Manual
Silvertel
EVALAG5200 Rev 1
Evaluation Board User
Manual
Rev 1.0 – January 2013
EVALAg5200 Rev 1 - Evaluation Board User Manual
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1 Table of Contents
1 2 3 4 Table of Contents
1 Table of Figures
1 Introduction
2 Board Description
2 4.1 Input Selection and Classification........................................................................ 2 4.2 Output adjustment ............................................................................................... 3 5 Typical Set-up
4 6 Using the Board
5 6.1 Typical Application .............................................................................................. 5 6.2 EVALAG5200 REV 1R - Evaluation Board Schematic ........................................ 6 6.3 Link settings ........................................................................................................ 6 2 Table of Figures
Figure 1: Board Layout .................................................................................................... 3 Figure 2: Basic set-up ..................................................................................................... 4 Figure 3: Example set-up ................................................................................................ 5 Figure 4: Board Schematic .............................................................................................. 6 EVALAg5200 Rev 1 - Evaluation Board User Manual
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2
Introduction
This manual is intended to be a guide to using the “EVALAG5200 Rev1.0” evaluation
board with a Silvertel Ag5200 Powered Device (PD) module.
4 Board Description
The input data and power is supplied to the board through connector J1. The data is
passed through to the peripheral equipment via J2, with the power form the PD module
is supplied via J3 to J5 (see Figure 1 & 4).
The EVALAG5200 on-board bridge rectifiers will ensure that the correct input polarity is
applied to the PD.
4.1 Input Selection and Classification
The EVALAG5200 board will automatically direct the power from J1 to the Ag5200’s
input. LED2 will be illuminated when PoE power is being applying to the board. LK1 can
be removed if you do not want LED2 to illuminate.
The Ag5200 Classification is fixed at Class 4 and does not need any external
programming components.
When the EVALAG5200 board is connected to an IEEE802.3at (PoE+) compliant PSE
such as a Phihong POE36U-1AT-R; the PSE will detect Class 4 and output 2-Event
classification pulses. In turn the Ag5200 detects these pulses and activates the AT-DET
detect output. This output is connected to an opto-isolator to cross the isolation barrier
and LED 3 will be illuminated.
Note: The EVALAG5200 does not have an on-board PHY or µ-controller; so does not perform the Data
Link Layer (DLL) classification communications back to the PSE (to confirm its power requirement). Many
IEEE802.3at PSEs (such as the Phihong POE36U-1AT-R) do not need this and will automatically supply
full Type 2 power at start-up. But there are several Switches (e.g. Cisco) that will only output Type 1
power level (<15.4W), until they receive DLL confirmation that the PD is Type 2 and supports the higher
power level.
EVALAg5200 Rev 1 - Evaluation Board User Manual
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Figure 1: Board Layout
4.2 Output adjustment
The Ag5200 output has an ADJ pin, which allows the output voltage to be increased or
decreased from its nominal value.
The EVALAG5200 board has an adjust link LK2 and two resistors R2 (100K) and R4
(0R) which allows the Ag5200 output to be adjusted to its maximum and minimum
values.
To increase the output voltage (to its maximum) connect a link to LK2 position in “a”; to
reduce the output voltage (to its minimum) connect a link in position “b”. If the output
voltage needs to be set to a different value (within the adjustment range) then connect a
resistor instead of a (0R) link.
EVALAg5200 Rev 1 - Evaluation Board User Manual
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4
Typical Set-up
Figure 2 shows the basic set up using the EVALAG5200 evaluation board with a
Midspan or Endspan.
The equipment required: ¾
¾
¾
¾
¾
Midspan or Endspan PSE (Power Sourcing Equipment)
Peripheral (or Test) Equipment
CAT5e cables
Output power cable
Mains cable
Mains Supply
MidSpan / Endspan
EVALAG5200 Board
Data & Power
PC or Switch
Data
J2
J1
J3 – J5
or J4
Figure 2: Basic set-up
Peripheral Equipment
Data
Power
EVALAg5200 Rev 1 - Evaluation Board User Manual
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6 Using the Board
6.1 Typical Application
Figure 3 shows an example set-up using an Ag5200 powered by a Phihong POE36U1AT-R Midspan and supplying +12V to a Vivotek PZ6122 (or PZ6112) ethernet camera.
The PC ethernet port is connected to the data input of the Phihong POE36U-1AT-R
(PSE) via a short Cat5e patch cable. The Data & Power output from the Phihong
POE36U-1AT-R is connected to the input of the EVALAG5200 evaluation board (J1) via
a CAT5e crossover cable (up to 100m). The data output of the EVALAG5200 evaluation
board is connected to the data port of the ethernet camera via a short CAT5e patch
cable. The +12V (parallel configuration) power output from the EVALAG5200 evaluation
board (J4) connects to the dc input of the Vivotek PZ6122 ethernet camera.
Figure 3: Example set-up
EVALAg5200 Rev 1 - Evaluation Board User Manual
6.2 EVALAG5200 REV 1R - Evaluation Board Schematic
Figure 4: Board Schematic
6.3 Link settings
LK1 – Connects input power LED circuit
LK2 – Output adjust select
LK3 – IEEE802.3at PSE detection LED
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