User Guide
PD-IM-7608M Eight 2-Pair Ports Evaluation Board
PD-IM-7608M Eight 2-Pair Ports Evaluation Board
Contents
1 Revision History ............................................................................................................................. 1
1.1 Revision 1.0 ........................................................................................................................................ 1
2 Product Overview .......................................................................................................................... 2
2.1 Evaluation System Features ............................................................................................................... 4
2.2 Evaluation System Interfaces and Connections .................................................................................. 4
2.2.1
2.2.2
2.2.3
RJ45 Connectors ...................................................................................................................................... 4
V IN Connector ........................................................................................................................................ 5
Isolated USB Interface ............................................................................................................................. 5
2.3 Test Points .......................................................................................................................................... 6
2.4 LED Indication ..................................................................................................................................... 6
2.5 Physical Characteristics ...................................................................................................................... 7
2.6 Electrical Characteristics ..................................................................................................................... 7
3 Installation and Settings ................................................................................................................ 8
3.1 Initial Configuration ............................................................................................................................ 8
4 Reference Documents .................................................................................................................... 9
5 Ordering Information ................................................................................................................... 10
Microsemi Proprietary and Confidential. User Guide Revision 1.0
PD-IM-7608M Eight 2-Pair Ports Evaluation Board
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Revision History
The revision history describes the changes that were implemented in the document. The changes are
listed by revision, starting with the most current publication.
1.1
Revision 1.0
Revision 1.0 was published in November 2017. It was the first publication of this document.
Microsemi Proprietary and Confidential. User Guide Revision 1.0
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PD-IM-7608M Eight 2-Pair Ports Evaluation Board
2
Product Overview
The PD-IM-7608M evaluation board is developed based on PD69208M and PD69200 chipsets. PD-IM-
7608M demonstrates the operation of eight 2-pair ports systems; for 4-pair systems, refer to the PD-IM-
7604+4MH or PD-IM-7604+4T4H evaluation boards.
Microsemi's PD69208M Power over Ethernet (PoE) manager IC integrates power, analog, and state-of-
the-art logic into a single 56-pin, plastic QFN package. The device is used in Ethernet switches and
midspans to allow network devices to share power and data over the same cable. The PD69208M device
is an 8-port mixed-signal and high-voltage PoE driver. Together with the PD69200 external MCU, it
perform as a PSE system. Microsemi's PD69200 PoE controller is a cost-effective and pre-programmed
MCU designed to implement enhanced mode.
The PD69208M and PD69200 chipset supports PoE powered device (PD) detection, power-up, and
protection according to IEEE standards as well as legacy/pre-standard PD detection. It provides real-time
PD protection through the following mechanisms: overload, under-load, over-voltage, over-
temperature, and short-circuit, and enables operation in a standalone mode. It also executes all real-
time functions as specified in IEEE802.3at and IEEE802.3af standards.
PD69208M supports supply voltages between 32 V and 57 V without additional power sources. A system
that powers over 4 pairs can be implemented by combining 2 ports of PD69208M, enabling an extra
feature for simple and low-cost high-power PD devices. Ongoing monitoring of system parameters for
the host software is available through communication. Internal thermal protection is implemented in
the chip. The PD69208M is a low power dissipation device that uses internal MOSFETs and internal 100
m
Ω
sense resistors.
The PD69200 features an ESPI bus for each PD69208M. It is based on Freescale's Kinetis_L family
MKL15Z128VFM4 embedded with an ARM Cortex™-M0+ core. The PD69200 utilizes an I
2
C or UART
interface to the host CPU. It is designed to support software field-upgradable through the
communication interface.
The evaluation board, shown in the following illustration, enables PoE designers to evaluate Microsemi's
PoE solution with flexibility and easy configuration. The application circuit of PD69208M and PD69200
chipset is compact in size (highlighted in the white box on board).
Microsemi Proprietary and Confidential. User Guide Revision 1.0
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PD-IM-7608M Eight 2-Pair Ports Evaluation Board
Figure 1 • PD-IM-7608M Evaluation System Block Diagram
Input supply to the board is DC and it can be fed through the V
IN
connector (see
Electrical Characteristics
(see page 7)
for the input voltage range). The auxiliary power supply (5 V and 3.3 V) for the
PD69208M is generated internally and the auxiliary power supply (3.3 V) for the PD69200 MCU is
generated using a 3.3 V isolated DC
–
DC converter. The board communicates with the host
environment using UART communication, available through a USB connector (U11). For this connection,
a driver for CP210x should be installed. The driver can be downloaded from
http://www.silabs.com
/products/mcu/Pages/USBtoUARTBridgeVCPDrivers.aspx
. A dedicated reset push button (SW1) is
provided for resetting the PoE controller. The board consists of eight 2-pair ports. The board consists of
different test points (for more information about test points, see
Test Points (see page 6)
). The board
also provides different LED indications (for more information on LED indications, see
LED Indication (see
page 6)
).
The following image shows a top view of the evaluation board.
Figure 2 • PD-IM-7608M Evaluation Board
Microsemi Proprietary and Confidential. User Guide Revision 1.0
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