FWLF1524P2yxx SFP Product Specification – April 2012

F i n i s a r

Finisar Corporation April, 2012 Rev E

Page 3

I.

Pin Descriptions

Pin

Symbol

Name/Description

Ref.

1

Transmitter Ground (Common with Receiver Ground)

1

2

Transmitter Fault. Not supported.

3

Transmitter Disable. Laser output disabled on high or open.

2

4

MOD_DEF(2)

Module Definition 2. Data line for Serial ID.

3

5

MOD_DEF(1)

Module Definition 1. Clock line for Serial ID.

3

6

MOD_DEF(0)

Module Definition 0. Grounded within the module.

3

7

Rate Select

Open or Low =

High =

1.063 Gb/s or 2.125 Gb/s Fibre Channel, 1.25 Gb/s

Gigabit Ethernet (Low Bandwidth)

2.125 or 4.25 Gb/s Fibre Channel (High Bandwidth)

4

8

LOS

Loss of Signal indication. Logic 0 indicates normal operation.

5

9

Receiver Ground (Common with Transmitter Ground)

1

10

Receiver Ground (Common with Transmitter Ground)

1

11

Receiver Ground (Common with Transmitter Ground)

1

12

RD-

Receiver Inverted DATA out. AC Coupled

13

RD+

Receiver Non-inverted DATA out. AC Coupled

14

Receiver Ground (Common with Transmitter Ground)

1

15

Receiver Power Supply

16

Transmitter Power Supply

17

Transmitter Ground (Common with Receiver Ground)

1

18

TD+

Transmitter Non-Inverted DATA in. AC Coupled.

19

TD-

Transmitter Inverted DATA in. AC Coupled.

20

Transmitter Ground (Common with Receiver Ground)

1

Notes:

1.

Circuit ground is internally isolated from chassis ground.

2.

3.

Should be pulled up with 4.7k - 10 kohms on host board to a voltage between 2.0V and 3.6V.

MOD_DEF(0) pulls line low to indicate module is plugged in.

4.

Specific information when selecting line rate: Rate selection is done in accordance with SFF

Committee SFF-8079 Draft, Rev.1.6, Table 3. Note that rate select can also be set through 2-wire bus

operation). Rate select is the logic OR of the input state of Rate Select Pin and 2-wire bus. Non Rate

Selectable version can operate at 1x, 2x, 4x Fibre Channel independent of rate select pin setting.

5.

LOS is open collector output. Should be pulled up with 4.7k – 10 kohms on host board to a voltage

between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.

VeeT

VeeT

VeeR

VeeR

TD-

TD+

RD+

RD-

VccT

VccR

VeeT

VeeR

TXFault

MOD-DEF(2)

MOD-DEF(1)

MOD-DEF(0)

Rate Select

LOS

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

Towards

ASIC

Towards

Bezel

TX Disable

VeeR

Pinout of Connector Block on Host Board