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HDMP-0452

Part Number	HDMP-0452
Manufacturer	Hewlett-Packard
Description	Quad Port Bypass Circuit
Published	Dec 28, 2006
Detailed Description	www.DataSheet4U.com Agilent HDMP-0452 Quad Port Bypass Circuit with CDR for Fibre Channel Arbitrated Loops Data Sheet ...
Datasheet	HDMP-0452 PDF File

Overview

www.
DataSheet4U.
com Agilent HDMP-0452 Quad Port Bypass Circuit with CDR for Fibre Channel Arbitrated Loops Data Sheet Description The HDMP-0452 is a Quad Port Bypass Circuit (PBC) with a Clock and Data Recovery (CDR) circuit included.
This device minimizes part count, cost and jitter accumulation while repeating incoming signals.
Port Bypass Circuits are used in hard disk arrays constructed in Fibre Channel Arbitrated Loop (FC-AL) configurations.
By using Port Bypass Circuits, hard disks may be pulled out or swapped while other disks in the array are available to the system.
A Port Bypass Circuit (PBC) consists of multiple 2:1 multiplexers daisy chained along with a CDR.
Each port has two modes of operation: “disk in loop” and “disk bypassed”.
When the “disk in loop” mode is selected, the loop goes into and out of the disk drive at that port.
For example, data goes from the HDMP-0452’s TO_NODE[n]± differential output pins to the Disk Drive Transceiver IC’s (e.
g.
, an HDMP-1536A) Rx± d...

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