UQ9-06-008

Ed:1.0

Date:10.Oct.2006

Page 6 of 15

MITSUBISHI (OPTICAL DEVICES)

MF-27WXD Series

2.5Gbps SFP TRANSCEIVER MODULE

7. Digital Diagnostic Monitoring Accuracy

The diagnostic monitoring features external calibration, and is calibrated over operating temperature and

voltage range. The monitor parameters are represented as defined in SFF-8472.

These parameters of the monitoring accuracy are guaranteed, as long as operating conditions of this SFP

transceiver do not exceed ranges defined below.

Digital Diagnostic Monitoring Accuracy

Parameter

Min.

Max.

Unit

Range for Accurate Monitoring

Transceiver Temperature

*1

-3

+3

°C

0 to 70

°C

Supply Voltage

-3

+3

%

3 to 3.6 V

TX Bias Current

-10

+10

%

-

TX Optical Power

-3(-1.5*

dB

0 to 5 dBm

RX Optical Power

-3(-2*

+3(+2*

dB

-29 to -7 dBm

*1:Transceiver Temperature is defined as an internal ambient temperature.

*2:These specs are optional.

8. Selective Bandwidth filtering function

Receiver bandwidth is selected by the Rate Select pins (7pin and 9pin).

Each bit rates for the selective bandwidth and adaptable protocols are as follows.

No.

Rate Select 0 (7pin)

Rate Select 1 (9pin)

Bandwidth

Adaptable protocols

1

Low

Low

Full

STM-16/OC-48, OTN-1

2

High

Low

1.25Gbps

Gigabit Ethernet

3

Low

High

622Mbps

STM-4/OC-12, ESCON

4

High

High

155Mbps

STM-1/OC-3, FDDI

*Optional Bandwidth: 2.125Gbps and 1.062Gbps bandwidth can be selected by the internal setting.

9. Transceiver pin allocation

No.

Symbol

Description

No.

Symbol

Description

1

TX GND

Transmitter Ground

11

RX GND

Receiver Ground

2

TX_FAULT

Transmitter Fault Indication

12

RD-

Receiver Data Output-Bar

3

TX_DISABLE

Transmitter Disable

13

RD+

Receiver Data Output

4

MOD_DEF[2]

Module Definition 2

14

RX GND

Receiver Ground

5

MOD_DEF[1]

Module Definition 1

15

RX Vcc

Receiver Power Supply

6

MOD_DEF[0]

Module Definition 0

16

TX Vcc

Transmitter Power Supply

7

Rate Select 0

Rate Select pin 0

17

TX GND

Transmitter Ground

8

RX_LOS

Loss of Signal

18

TD+

Transmitter Data in

9

Rate Select 1

Rate Select pin 1

19

TD-

Transmitter Data in-Bar

10

RX GND

Receiver Ground

20

TX GND

Transmitter Ground