155Mbps Spring Latch SFP Transceiver

15～80 km transmission

May 12, 2006

Fiberxon Proprietary and Confidential, Do Not Copy or Distribute

Page 8 of 11

Controlled Electronic Version. 24hrs Obsolete when printed out without authorization. Last printed 2006-05-15 10:28

P in 10

Pin 1

P in 11

P in 20

B O T T O M VIEW

OF B OA R D

OF B OA R D

T O P VIEW

Figure 3, Pin View

Table 8– Pin Function Definitions

Pin No.

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

4

MOD-DEF2

Module Definition 2

3

Note 3

5

MOD-DEF1

Module Definition 1

3

Note 3

6

MOD-DEF0

Module Definition 0

3

Note 3

7

Rate Select

Not Connected

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