DS-7315 Rev 04 2013-11-21

SPG-FE-FX-IDFC

SPG-FE-FX-CDFC

6

MOD-DEF0

Module Definition 0

3

Note 3

7

Rate Select

Not Use

3

8

LOS

Loss of Signal

3

Note 4

9

VeeR

Receiver Ground

1

10

VeeR

Receiver Ground

1

11

VeeR

Receiver Ground

1

12

RD-

Inv. Received Data Out

3

Note 5

13

RD+

Received Data Out

3

Note 5

14

VeeR

Receiver Ground

1

15

VccR

Receiver Power

2

16

VccT

Transmitter Power

2

17

VeeT

Transmitter Ground

1

18

TD+

Transmit Data In

3

Note 6

19

TD-

Inv. Transmit Data In

3

Note 6

20

VeeT

Transmitter Ground

1

Notes:

1. TX Fault is an open collector output, which should be pulled up with a 4.7k~10k

Ω resistor on the host

board to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; logic 1 indicates a

laser fault of some kind. In the low state, the output will be pulled to less than 0.8V.

2. TX Disable is an input that is used to shut down the transmitter optical output. It is pulled up within the

module with a 4.7k~10k

Ω resistor. Its states are:

Low (0~0.8V):

Transmitter on

(>0.8V, <2.0V):

Undefined

High (2.0~3.465V):

Transmitter Disabled

Open:

Transmitter Disabled

3. MOD-DEF 0, 1, 2 are the module definition pins. They should be pulled up with a 4.7k~10k

Ω resistor on

the host board. The pull-up voltage shall be VccT or VccR.

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

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

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

4. LOS is an open collector output, which should be pulled up with a 4.7k~10k

Ω resistor on the host board

to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; logic 1 indicates loss of

signa or link down with partner l. In the low state, the output will be pulled to less than 0.8V.

5. These are the differential receiver output. They are internally AC-coupled 100Ω differential lines which

should be terminated with 100Ω (differential) at host with SGMII interface.

6. These are the differential transmitter inputs. They are AC-coupled, differential lines with 100Ω

differential termination inside the module.