V23849-R3x-C55

Pin Configuration

Preliminary Product Information

3

2004-06-28

Pin Description

Pin No.

Name

Logic Level

Function

1

V

N/A

Transmitter Ground

1)

2

Tx Fault

LVTTL

Transmitter Fault Indication

2) 10)

3

Tx Disable

LVTTL

Transmitter Disable

3)

4

MOD-DEF(2)

LVTTL

Module Definition 2

4) 10)

5

MOD-DEF(1)

LVTTL

Module Definition 1

5) 10)

6

MOD-DEF(0)

N/A

Module Definition 0

6) 10)

7

Rate Select

7)

LVTTL

1 & 2 or 2 & 4 Gbit/s

8)

8

LOS

LVTTL

Loss Of Signal

9) 10)

9

V

N/A

Receiver Ground

1)

10

V

N/A

Receiver Ground

1)

11

V

N/A

Receiver Ground

1)

12

RD–

LVPECL

Inv. Received Data Out

11)

13

RD+

LVPECL

Received Data Out

11)

14

V

N/A

Receiver Ground

1)

15

V

N/A

Receiver Power

12)

16

V

N/A

Transmitter Power

12)

17

V

N/A

Transmitter Ground

1)

18

TD+

LVPECL

Transmit Data In

13)

19

TD–

LVPECL

Inv. Transmit Data In

13)

20

V

N/A

Transmitter Ground

1)

1)

Common transmitter and receiver ground within the module.

2)

A high signal indicates a laser fault of some kind and that laser is switched off.

3)

A low signal switches the transmitter on. A high signal or when not connected switches the transmitter off.

4)

MOD-DEF(2) is the data line of two wire serial interface for serial ID.

5)

MOD-DEF(1) is the clock line of two wire serial interface for serial ID.

6)

MOD-DEF(0) is grounded by the module to indicate that the module is present.

7)

Not implemented.

8)

In accordance to SFF Committee SFF-8079 Draft.

9)

A low signal indicates normal operation, light is present at receiver input. A high signal indicates the received

optical power is below the worst case receiver sensitivity.

10)

Should be pulled up on host board to

V

11)

AC coupled inside the transceiver. Must be terminated with 100

Ω differential at the user SERDES.

12)

Common transmitter and receiver

V

13)

AC coupled and 100

Ω differential termination inside the transceiver.