Silvertel Ag9800M User manual

Silvertel
Rev 1.0 – August 2013
Ag9800M Evaluation
Board User Manual

Ag9330 Evaluation Board User Manual 1
1 Table of Contents
1Table of Contents 1
2Table of Figures 1
3Introduction 2
4Board Description 2
4.1Input Selection..................................................................................................... 3
4.2Input Filter ...........................................................................................................3
4.3Input Termination ................................................................................................4
4.4Class Programming.............................................................................................4
4.5Data Output......................................................................................................... 4
4.6Power Output ......................................................................................................4
4.7Output Adjustment...............................................................................................4
4.8Output Filter.........................................................................................................5
5Equipment Required 5
6Using the Board 6
2 Table of Figures
Figure 1: Board Layout....................................................................................................3
Figure 2: Full Test Set-up Using Ethernet Camera .........................................................5

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3 Introduction
This manual is intended to be a guide to using the “EVALAG9800M evaluation board”
with a Silvertel Ag9800M Powered Device (PD) module.
Because the Ag9800M is a surface mount device, it will be solder directly onto the
evaluation board before being shipped. So when ordering the evaluation board you will
need to select the variant that you require: -
3.3V - Ag9803M
5.0V - Ag9805M
12.0V - Ag9812M
4 Board Description
The data is supplied to the EVALAG9800M board through connector J1 and is passed
through to the peripheral equipment via J2.
The EVALAG9800M evaluation board is design to handle 10/100BASE-T Ethernet data
rates.
The Power Sourcing Equipment (PSE) delivers power to the EVALAG9800M evaluation
board power via J1.
The output power from the EVALAG9800M evaluation board to the peripheral
equipment is supplied via J3, J4 & J5 (see Figure 1).
When the PD module output is ON - LED1 will be illuminated.

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Figure 1: Board Layout
4.1 Input Selection
The PSE output is automatically extracted from either the spare pairs or from the centre
taps of T1 (which is IEEE802.3af compliant).
BR1 and BR2 are fitted to ensure that the PSE output polarity is correctly delivered to
the VIN+ and VIN- (input) pins of the Ag9800M module.
4.2 Input Filter
The EVALAG9800M evaluation board has the build option to reduce emissions, see
apps notes “ANX-POE-EMI” and ANX-POE-HDBaseT” on our website for more
information.

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4.3 Input Termination
EVALAG9800M evaluation board has the build option to add input data termination, see
the apps note “ANX-POE-Data-Termination” on our website for more information.
4.4 Class Programming
The Ag9800M is internally set to Class 0, so the EVALAG9800M evaluation board does
not have any class programming.
4.5 Data Output
The output data is transmitted from the evaluation board via J2.
4.6 Power Output
The Ag9800M output is delivered from connectors J3 (positive) and J4 (negative). In
addition to these the output voltage is also available from J5 (the centre pin is positive).
LED1 is illuminated when the Ag9800M output is ON.
The link LK3 needs to be set to the either “3V&5V” or “12V”.
4.7 Output Adjustment
The output voltage of the Ag9800M can be adjusted by connecting the ADJ pin to either
the -VDC or the +VDC pins. LK2 can be used to adjust the output voltage (see Figure
1).
On the EVALAG9800M evaluation board R1 and R2 are fitted with a 0 Ohm link to give
its full adjustment, see the output adjustment section in the datasheet for more
information.
With LK2 fitted in position “a” (centre to right) the output voltage will be decreased.
With LK2 fitted in position “b” (centre to left) the output voltage will be increased.

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4.8 Output Filter
The EVALAG9800M evaluation board has an output PI filter fitted, to reduce the output
ripple. The PI filter is disabled when the link LK1 is fitted, but can be activated by simply
removing the link LK1 (see Figure1).
5 Equipment Required
Figure 2 shows the full set up using the EVALAG9800M board to supply data and power
to an Ethernet camera.
The equipment required: -
¾PC
¾EVALAG6100 Board
¾EVALAG9800M Board
¾Power Supply (45Vdc to 57Vdc)
¾Ethernet Camera
¾CAT5e Cables
¾12V Camera Cable
Figure 2: Full Test Set-up Using Ethernet Camera

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6 Using the Board
Figure 2 shows the full test set-up using an EVALAG9800M board and an
EVALAG6100 board supplying +12V to an Ethernet camera.
The PC ethernet port is connected to the data input of the EVALAG6100 board (J1) via
a short Cat5e patch cable. The Data & Power output from the EVALAG6100 board (J2)
is connected to the input of the EVALAG9800M board (J1) via a CAT5e cable. The data
output of the EVALAG9800M board (J2) is connected to the data port of the ethernet
camera via a CAT5e cable. The (+12V) power output from the EVALAG9800M board is
connected to the dc input of the ethernet camera.