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Pin function definitions, Sfp transceiver electrical pad layout – Delta Electronics LCP-4250A4CDR User Manual

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DELTA ELECTRONICS, INC.

4 2008/3/18

Rev. 0A

www.deltaww.com

SFP Transceiver Electrical Pad Layout

Pin Function Definitions

Pin Num.

Name

Function

Plug Seq.

Notes

1 VeeT

Transmitter

Ground

1

2

TX Fault

Transmitter Fault Indication

3

Note 1

3

TX Disable Transmitter Disable

3

Note 2
Module disables on high or open

4

MOD-DEF2 Module Definition 2

3

Note 3, 2 wire serial ID interface

5

MOD-DEF1 Module Definition 1

3

Note 3, 2 wire serial ID interface

6

MOD-DEF0 Module Definition 0

3

Note 3, Grounded in Module

7

Rate Select 1&2 or 2&4 Gbit/s

3

Note 4, Open or Low = 1.063Gb/s, High
= 2.125Gb/s or 4.25Gb/s

8

LOS

Loss of Signal

3

Note 5

9

VeeR

Receiver Ground

1

Note 6

10

VeeR

Receiver Ground

1

Note 6

11

VeeR

Receiver Ground

1

Note 6

12

RD-

Inv. Received Data Out

3

Note 7

13

RD+

Received Data Out

3

Note 8

14

VeeR

Receiver Ground

1

Note 6

15

VccR

Receiver Power

2

3.3 ± 5%, Note 7

16

VccT

Transmitter Power

2

3.3 ± 5%, Note 7

17

VeeT

Transmitter Ground

1

Note 6

18

TD+

Transmit Data In

3

Note 9

19

TD-

Inv. Transmit Data In

3

Note 9

20

VeeT

Transmitter Ground

1

Note 6

Plug Seq.: Pin engagement sequence during hot plugging.