PD671xxx - 8 / 12 / 24-Channel PoE AF and AT DIMM

Data Sheet (Non-confidential)

DESCRIPTION

KEY FE A T URES

Microsemi’s™ new and unique family of Power over Ethernet

(PoE) modules enable next-generation network devices to

share data and power over the same cable. The PD671xxx

PoE PSE modules are fit / form compatible with the standard

plug-in memory modules used in personal computers (Dual

Inline Memory Modules - DIMMs) (see Figure 1 and Figure 12).

Thus, the use of these modules permit network devices to be

designed for up to 96 ports, with fewer ports actually installed.

Additional modules can be inserted in the field at any time.

The PD671xxx (8, 12 or 24 ports DIMM) includes a wide range

of functions. Some of these modules include the PD69000

micro-controller unit (PoE controller) for Enhanced features and

a flexible work environment in a DIMM master or DIMM slave

configuration (refer to Ordering Information, page 2).

Microsemi’s PoE PD671xxx DIMMs implement real time

mechanisms including detection, classification, port real-time

protection and system level functions (power management and

MIB support).

Microsemi’s PD69012 IC, 12-channel PoE Manager IC is at the

heart of these modules. PD671xxx DIMMs enable the

detection of IEEE802.3at-2009 Type 1 (low power) or Type 2

(high power) Powered Devices (PDs), ensuring safe power

feeding and removal over Ethernet ports. The PD69012-based

DIMMs detect and disable disconnected ports, using DC or AC

disconnection methods. The DIMMs are embedded in multi-

port and highly populated Ethernet switches, requiring a

minimum of external components.

The PD671xxx DIMM is fully backwards compatible with the

PD670xx DIMM and can be dropped into existing designs.

Figure 1: PoE PD67124 DIMM

IMPORTANT: For the most current data, consult Microsemi’s website:

http://www.microsemi.com

IEEE 802.3AT-2009 and

IEEE802.3AF-2003 compliant

Up to 30 W per port power PoE

solution

RoHS compliant

Supports IETF PoE MIB (RFC 3621)

Up to 24 power ports per single DIMM

Up to 96 ports in a system, using

master and slave configuration

Thermal protection per port

Thermal monitoring capabilities

Pre-standard detection methods

(Cisco Inline Power and Power over

LAN Legacy)

Non-standard terminals supported

DC disconnect with DC modulation

AC disconnect function utilizing

external diodes

PD 2-events classification function

Operates using a single input (44 to

57 VDC)

I

Host communication is backward

compatible with PD67024M

communication, or Marvell® ISSR

Programmable over current protection

per port

Built-in power management algorithm

Internal power-on reset mechanism

Fast port shutdown on power supply

failure

Supports Backplane Power

Management

Automatic on/off sequencer for 96

ports

Disable/enable power per port

Continuous port current monitoring

Serial interface for LED indicator

support

Backwards compatible with PD670xx

Fit/form compliant with168-pin DIMM

JEDEC MO-161F, 3.3 V

Space efficient compact design

Factory pre-tested, for plug-and-play

integration

Safety standard compliant: UL / cUL

per UL60950-1 (mounted on

Microsemi evaluation board)