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PD-IM-7608M
User Manual
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Microsemi PD-IM-7608M User Manual

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User Guide
PD-IM-7608M Eight 2-Pair Ports Evaluation Board
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PD-IM-7608M Eight 2-Pair Ports Evaluation Board
Contents
1.1 Revision 1.0 ........................................................................................................................................ 1
2.1 Evaluation System Features ............................................................................................................... 4
2.2 Evaluation System Interfaces and Connections .................................................................................. 4
2.2.1 RJ45 Connectors ...................................................................................................................................... 4
2.2.2 V IN Connector ........................................................................................................................................ 5
2.2.3 Isolated USB Interface ............................................................................................................................. 5
2.3 Test Points .......................................................................................................................................... 6
2.4 LED Indication ..................................................................................................................................... 6
2.5 Physical Characteristics ...................................................................................................................... 7
2.6 Electrical Characteristics ..................................................................................................................... 7
3.1 Initial Configuration ............................................................................................................................ 8
5 Ordering Information ................................................................................................................... 10
Microsemi Proprietary and Confidential. User Guide Revision 1.0
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PD-IM-7608M Eight 2-Pair Ports Evaluation Board
1 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.
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2 Product Overview
The PD-IM-7608M evaluation board is developed based on PD69208M and PD69200 chipsets. PD-IM­7608M demonstrates the operation of eight 2-pair ports systems; for 4-pair systems, refer to the PD-IM­7604+4MH or PD-IM-7604+4T4H evaluation boards.
Microsemi's PD69208M Power over Ethernet (PoE) manager IC integrates power, analog, and state-of­the-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, over­temperature, and short-circuit, and enables operation in a standalone mode. It also executes all real­time 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 sense resistors.Ω
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 C or UART
2
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).
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Figure 1 • PD-IM-7608M Evaluation System Block Diagram
Input supply to the board is DC and it can be fed through the V connector (see IN Electrical Characteristics
for the input voltage range). The auxiliary power supply (5 V and 3.3 V) for the (see page 7) 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
. A dedicated reset push button (SW1) is /products/mcu/Pages/USBtoUARTBridgeVCPDrivers.aspx 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 ). The board Test Points (see page 6) 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
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2.1 Evaluation System Features
The evaluation system has the following features.
Two gangs (each contains 4 RJ45 connectors) Switch domain isolated from PoE domain Switch domain USB interface PoE controller manual reset LED status indication for all ports (LED stream) Requires single power source only 0° C to 40° C working temperature RoHS compliant
2.2 Evaluation System Interfaces and Connections
The evaluation system interfaces and connectors are listed in the following table.
Table 1 • Evaluation Board Connectors
Serial Number
Connector Name Description
1 J3, J4 RJ45
connectors
Eight RJ45 ports are connected to the powered device load
2 J1 V connectorIN The DC in (V ) connection is used to power the evaluation boardMAIN
3 U11 Isolated USB The USB communication, coming from the hosting system (U11), converted
to UART and directed to the PoE controller
2.2.1 RJ45 Connectors
There are two dedicated RJ45 connectors; each contains four RJ45 ports, so there are eight ports in total. All the ports are 2-pair ports.
Table 2 • RJ45 Connectors
Pin Number (Each RJ45) Signal Name Description
4, 5 SPARE - Vport_Pos PoE's positive spare port
7, 8 SPARE - Vport_Neg PoE's negative spare port
Manufacturer: Amphenol Manufacturer part number: RJHSE508104
The following image shows the RJ45 connectors.
Figure 3 • RJ45 Connectors
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2.2.2 V IN Connector
The DC input (V ) connection is used for powering the evaluation system. The recommended input MAIN voltage range is 44 VDC > V > 57 V DC. The input connector is rated for 5 A (refer to MAIN Evaluation Board for the V connector).IN
Table 3 • Vin Connector
Pin Number Signal Name Description
1 Vmain Main positive voltage (referenced to GND_ANALOG)
2 GND_ANALOG Analog ground
3 GND_ANALOG Analog ground
Manufacturer: SWITCHCRAFT Manufacturer part number: RAPC722X
The polarity of the V connector is as shown in the following illustration.IN
Figure 4 • Power Supply Cable Polarity
2.2.3 Isolated USB Interface
This interface supplies USB communication coming from the hosting system (U11), converted to UART communication (refer to for the isolated USB connector).Evaluation Board
Table 4 • Isolated USB Interface
Pin Number Signal Name Description
1 VBUS Voltage supply from USB bus
2 D– Dedicated USB signal
3 D+ Dedicated USB signal
4 GND_F Floating ground
Manufacturer: Samtec Manufacturer part number: USB-B-S-S-B-TH
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2.3 Test Points
The following table lists the test points in the evaluation board.
Table 5 • Test Points
Designation Description
TP1 Connected to power good pin, PG3
TP2 Connected to power good pin, PG2
TP3 Connected to power good pin, PG1
TP4 Connected to power good pin, PG0
TP5 PD69200 supply (3.3 V) test point
TP6 PD69200 ground test point
TP7 I C bus serial data (SDA)
2
TP8 I C bus serial clock (SCL)
2
h1 (+) Evaluation board positive input (V ) test pointMAIN
h2 (–) Evaluation board input ground test point
2.4 LED Indication
The evaluation board contains status indication LEDs, listed in the following table.
Table 6 • LED Indication
Designation Description
D2 Input voltage indication
D3 PoE controller 3.3 V indication
D4 System OK indication; by default, turns on when input voltage is within operating range
D5 Interrupt indication; LED turns on when a pre-configured event is happening
Apart from these LEDs, each RJ45 connector port contains a dedicated LED (green LED), which displays the status of the particular port.
Table 7 • Port Status Indications
Port LED Color Port Load Conditions Port Voltage
Off Inactive load or unplugged load Power to port is disconnected, no DC voltage
present on port output lines
Green Active load is plugged in and complies with
normal load conditions
Continuous nominal DC voltage is present
Green (blinks once every second)
Overload or short circuit Power to port is disconnected, no DC voltage is
present on port output lines
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2.5 Physical Characteristics
The mechanical dimensions of the board are 180 mm × 60 mm × 16 mm (L × W × H).
2.6 Electrical Characteristics
The following table lists the electrical characteristics of the evaluation system.
Table 8 • Electrical Characteristics
Parameter Minimum Maximum Units
Main DC supply VMAIN 44 57 V
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3 Installation and Settings
This section describes the steps required for installing and operating the PD-IM-7608M evaluation system. Take the following precautions before starting the installation.
Ensure that the power supply of the board is turned on before the peripheral devices are turned on. Ensure that all the required peripherals are connected before powering the board. Ensure that power bank15 is set to 200 W. Ensure the correct polarity of the power supply cable. The polarity of the power supply cable is as shown in .Power Supply Cable Polarity (see page 5)
Note
Confirm that the evaluation board is properly configured prior to starting any operation. For more information related to the software and the GUI used for enhanced mode operation, refer to catalog number 06-0027-056.Software GUI User Guide,
3.1 Initial Configuration
The board is configured with the following matrix.
Table 9 • Port Matrix
Port Identification Number Logical Port Physical Port (ALT-A) Physical Port (ALT-B)
0 0 0 255
1 1 1 255
2 2 2 255
3 3 3 255
4 4 4 255
5 5 5 255
6 6 6 255
7 7 7 255
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4 Reference Documents
The following documents can be obtained through Microsemi customer support. To access other documents, visit our website at .http://www.microsemi.com
IEEE 802.3af-2003 Standard, DTE Power via MDI IEEE 802.3at-2009 Standard, DTE Power via MDI PD69208M Datasheet (CDCA 159793) Application Note 211: Designing a PD69208 48-port Enhanced PoE Systems and Layout Design
(catalog number PD69208_AN_211)Guidelines Technical Note 218: (catalog number Interfacing LED Stream circuit with PD69200 PD69200_TN_218_PoE_LED_Stream_Interface)
PD69200 Serial Communication Protocol User Guide (catalog number PD_69200_UG_COMM_PROT) Software GUI User Guide (catalog number 06-0027-056)
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5 Ordering Information
The following table lists the ordering information for the PD-IM-7608M evaluation system.
Table 10 • Evaluation Board Ordering Information
Ordering Number Description
PD-IM-7608M 8-port PD69208M-based enhanced evaluation board with LED stream. RoHS compliant.
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