IEEE 802.3at-2009

$73.13

IEEE Standard for Information technology– Local and metropolitan area networks– Specific requirements– Part 3: CSMA/CD Access Method and Physical Layer Specifications Amendment 3: Data Terminal Equipment (DTE) Power via the Media Dependent Interface (MDI) Enhancements

Published By	Publication Date	Number of Pages
IEEE	2009	141

Guaranteed Safe Checkout

Category: IEEE

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

Description

Amendment Standard – Superseded. This amendment includes changes to IEEE Std 802.3-2008 to augment the capabilities of IEEE Std 802.3 with higher power levels and improved power management information.

PDF Catalog

PDF Pages	PDF Title
1	IEEE Std 802.3at-2009 Front Cover
3	Title page
6	Introduction
7	Notice to users Laws and regulations Copyrights Updating of IEEE documents
8	Errata Downloads Interpretations Patents
9	Participants
13	CONTENTS
19	Important Notice
20	1. Introduction 1.3 Normative references 1.4 Definitions
21	25. Physical Medium Dependent (PMD) sublayer and baseband medium, type 100BASE-TX 25.4 Specific requirements and exceptions 25.4.4a Change to 9.1.7, “Worst case droop of transformer” 25.4.4a.1 Equivalent system time constant
22	25.4.5a Addition to 10.1, “Receiver”
23	25.5 Protocol implementation conformance statement (PICS) proforma for Clause 25, Physical Medium Dependent (PMD) sublayer and baseband medium, type 100BASE-TX 25.5.3 Major capabilities/options 25.5.3.1 DTE Power via MDI major capabilities/options 25.5.4 PICS proforma tables for the Physical Medium Dependent (PMD) sublayer and baseband medium, type 100BASE-TX 25.5.4.4 DTE Power via MDI compliance
25	30. Management 30.2 Managed objects 30.2.2 Overview of managed objects 30.2.2.1 Text description of managed objects 30.2.3 Containment
27	30.2.5 Capabilities
31	30.9 Management for DTE Power via MDI Sourcing Equipment (PSE)
32	30.9.2 PD managed object class 30.9.2.1 PD attributes 30.9.2.1.1 aPDID 30.12.2 LLDP Local System Group managed object class 30.12.2.1 LLDP Local System Group attributes 30.12.2.1.14 aLldpXdot3LocPowerType 30.12.2.1.15 aLldpXdot3LocPowerSource 30.12.2.1.16 aLldpXdot3LocPowerPriority
33	30.12.2.1.17 aLldpXdot3LocPDRequestedPowerValue 30.12.2.1.18 aLldpXdot3LocPSEAllocatedPowerValue 30.12.2.1.19 aLldpXdot3LocResponseTime
34	30.12.2.1.20 aLldpXdot3LocReady 30.12.2.1.21 aLldpXdot3LocReducedOperationPowerValue 30.12.3 LLDP Remote System Group managed object class 30.12.3.1 LLDP Remote System Group attributes 30.12.3.1.14 aLldpXdot3RemPowerType 30.12.3.1.15 aLldpXdot3RemPowerSource
35	30.12.3.1.16 aLldpXdot3RemPowerPriority 30.12.3.1.17 aLldpXdot3RemPDRequestedPowerValue 30.12.3.1.18 aLldpXdot3RemPSEAllocatedPowerValue
37	33. Data Terminal Equipment (DTE) Power via Media Dependent Interface (MDI) 33.1 Overview 33.1.1 Objectives
38	33.1.2 Compatibility considerations 33.1.3 Relationship of DTE Power via MDI to the IEEE 802.3 Architecture
39	33.1.4 Type 1 and Type 2 system parameters
40	33.1.4.1 Type 2 cabling requirement 33.1.4.2 Type 1 and Type 2 channel requirement 33.2 Power sourcing equipment (PSE) 33.2.1 PSE location
41	33.2.2 Midspan PSE types
46	33.2.3 PI pin assignments
47	33.2.4 PSE state diagrams 33.2.4.1 Overview 33.2.4.2 Conventions 33.2.4.3 Constants 33.2.4.4 Variables
51	33.2.4.5 Timers 33.2.4.6 Functions
53	33.2.4.7 State diagrams
55	33.2.5 PSE detection of PDs 33.2.5.1 PSE detection validation circuit
57	33.2.5.2 Detection probe requirements 33.2.5.3 Detection criteria
58	33.2.5.4 Rejection criteria 33.2.5.5 Open circuit criteria 33.2.6 PSE classification of PDs and mutual identification
60	33.2.6.1 PSE 1-Event Physical Layer classification
61	33.2.6.2 PSE 2-Event Physical Layer classification
63	33.2.7 Power supply output
64	33.2.7.1 Output voltage in the POWER_ON state 33.2.7.2 Voltage transients
65	33.2.7.3 Power feeding ripple and noise 33.2.7.4 Continuous output current capability in the POWER_ON state 33.2.7.5 Output current in POWER_UP mode
66	33.2.7.6 Overload current 33.2.7.7 Output current—at short circuit condition
68	33.2.7.8 Turn off time 33.2.7.9 Turn off voltage 33.2.7.10 Continuous output power capability in POWER_ON state 33.2.7.11 Current unbalance
69	33.2.7.12 Power turn on time 33.2.7.13 PSE stability 33.2.8 Power supply allocation 33.2.9 PSE power removal 33.2.9.1 PSE Maintain Power Signature (MPS) requirements 33.2.9.1.1 PSE AC MPS component requirements
70	33.2.9.1.2 PSE DC MPS component requirements
71	33.3 Powered devices (PDs) 33.3.1 PD PI
72	33.3.2 PD type descriptions 33.3.3 PD state diagram 33.3.3.1 Conventions
73	33.3.3.2 Constants 33.3.3.3 Variables
74	33.3.3.4 Timers
75	33.3.3.5 State diagrams
76	33.3.4 PD valid and non-valid detection signatures
78	33.3.5 PD classifications 33.3.5.1 PD 1-Event class signature
79	33.3.5.2 PD 2-Event class signature 33.3.5.2.1 Mark Event behavior 33.3.6 PSE Type identification
80	33.3.7 PD power
81	33.3.7.1 Input voltage 33.3.7.2 Input average power 33.3.7.2.1 System stability test conditions during startup and steady state operation
82	33.3.7.3 Input inrush current 33.3.7.4 Peak operating power
83	33.3.7.5 Peak transient current
84	33.3.7.6 PD behavior during transients at the PSE PI 33.3.7.7 Ripple and noise
85	33.3.7.8 PD classification stability time 33.3.7.9 Backfeed voltage 33.3.8 PD Maintain Power Signature 33.4 Additional electrical specifications
86	33.4.1 Isolation 33.4.1.1 Electrical isolation environments 33.4.1.1.1 Environment A requirements 33.4.1.1.2 Environment B requirements
87	33.4.2 Fault tolerance 33.4.3 Impedance balance
88	33.4.4 Common-mode output voltage
90	33.4.5 Pair-to-pair output noise voltage
91	33.4.6 Differential noise voltage 33.4.7 Return loss 33.4.8 100BASE-TX transformer droop
92	33.4.9 Midspan PSE device additional requirements
94	33.4.9.1 “Connector” or “telecom outlet” Midspan PSE device transmission requirements 33.4.9.1.1 Near End Crosstalk (NEXT) 33.4.9.1.2 Insertion loss 33.4.9.1.3 Return loss
95	33.4.9.1.4 Work area or equipment cable Midspan PSE 33.4.9.2 Midspan signal path requirements 33.4.9.2.1 Alternative A Midspan PSE signal path transfer function
96	33.5 Management function requirements 33.5.1 PSE registers 33.5.1.1 PSE Control register (Register 11) (R/W)
97	33.5.1.1.1 Reserved bits (11.15:6) 33.5.1.1.2 Data Link Layer Classification capability (11.5) 33.5.1.1.3 Enable Physical Layer classification (11.4)
98	33.5.1.1.4 Pair Control (11.3:2) 33.5.1.1.5 PSE enable (11.1:0) 33.5.1.2 PSE Status register (Register 12) (R/W)
99	33.5.1.2.1 PSE Type electrical parameters (12.15) 33.5.1.2.2 Data Link Layer Classification Enabled (12.14)
100	33.5.1.2.3 Physical Layer Classification Supported (12.13) 33.5.1.2.4 Power Denied or Removed (12.12) 33.5.1.2.5 Valid Signature (12.11) 33.5.1.2.6 Invalid Signature (12.10) 33.5.1.2.7 Short Circuit (12.9) 33.5.1.2.8 Overload (12.8) 33.5.1.2.9 MPS Absent (12.7)
101	33.5.1.2.10 PD Class (12.6:4) 33.5.1.2.11 PSE Status (12.3:1) 33.5.1.2.12 Pair Control Ability (12.0) 33.6 Data Link Layer classification 33.6.1 TLV frame definition 33.6.2 Data Link Layer classification timing requirements
102	33.6.3 Power control state diagrams 33.6.3.1 Conventions 33.6.3.2 Constants
103	33.6.3.3 Variables
105	33.6.3.4 Functions
106	33.6.3.5 State diagrams
107	33.6.4 State change procedure across a link
108	33.6.4.1 PSE state change procedure across a link 33.6.4.2 PD state change procedure across a link
109	33.7 Environmental 33.7.1 General safety 33.7.2 Network safety 33.7.3 Installation and maintenance guidelines 33.7.4 Patch panel considerations 33.7.5 Telephony voltages
110	33.7.6 Electromagnetic emissions 33.7.7 Temperature and humidity 33.7.8 Labeling
111	33.8 Protocol implementation conformance statement (PICS) proforma for Clause 33, DTE Power via MDI 33.8.1 Introduction 33.8.2 Identification 33.8.2.1 Implementation identification 33.8.2.2 Protocol summary
112	33.8.2.3 PD Major capabilities/options
113	33.8.2.4 PSE Major capabilities/options
114	33.8.3 PICS proforma tables for DTE Power via MDI 33.8.3.1 Common device features 33.8.3.2 Power sourcing equipment
119	33.8.3.3 Powered devices
122	33.8.3.4 Electrical specifications applicable to the PSE and PD
123	33.8.3.5 Electrical specifications applicable to the PSE
124	33.8.3.6 Electrical specifications applicable to the PD
125	33.8.3.7 Management function requirements
128	33.8.3.8 Data Link Layer classification requirements
129	33.8.3.9 Environmental specifications applicable to PSEs and PDs 33.8.3.10 Environmental specifications applicable to the PSE
131	79. IEEE 802.3 Organizationally Specific Link Layer Discovery Protocol (LLDP) type, length, and value (TLV) information elements 79.2 Requirements of the IEEE 802.3 Organizationally Specific TLV set 79.3 IEEE 802.3 Organizationally Specific TLVs 79.3.2 Power via MDI TLV
132	79.3.2.4 Requested power type/source/priority 79.3.2.4.1 Power type 79.3.2.4.2 Power source
133	79.3.2.4.3 Power priority 79.3.2.5 PD requested power value 79.3.2.6 PSE allocated power value
134	79.4 IEEE 802.3 Organizationally Specific TLV selection management 79.4.2 IEEE 802.3 Organizationally Specific TLV/LLDP Local and Remote System group managed object class cross references
136	79.5 Protocol implementation conformance statement (PICS) proforma for IEEE 802.3 Organizationally Specific Link Layer Discovery Protocol (LLDP) type, length, and values (TLV) information elements 79.5.6 Power via MDI TLV
137	Annex A (informative) Bibliography
139	Annex 33A (informative) PSE-PD stability 33A.1 Recommended PSE design guidelines and test setup
141	33A.2 Recommended PD design guidelines

Additional information

Standard Title	IEEE Standard for Information technology– Local and metropolitan area networks– Specific requirements– Part 3: CSMA/CD Access Method and Physical Layer Specifications Amendment 3: Data Terminal Equipment (DTE) Power via the Media Dependent Interface (MDI) Enhancements
Published Code	IEEE
Publication Date	2009
Pages Count	141

Preview PDF


PDF Format	Searchable	Printable	Preview Now

IEEE 802.3at-2009

PDF Catalog

Related products