©2015 Glenair, Inc.

REV: 3

US Cage Code 06324

Printed in USA

GLENAIR, INC.

∙ 1211 AIR WAY ∙ GLENDALE, CA 91201-2497

∙ TEL: 818-247-6000

∙ FAX: 818-500-9912

www.glenair.com

PAGE 13 of 15

E-mail: sales@glenair.com

050-320 Product Brief

PCB Mount Dual Receiver for Single Mode Fiber

100 Mbps – 4.25 Gbps, 3.3V

Table 8

Two-Wire interface ID: Data Fields – Address A2h (RX1), A4h (RX2)

NOTE: TX Data fields are not applicable (i.e. address 16-31 and 100-103 are not applicable)

Byte #

Decimal

Data

Notes

Byte #

Decimal

Data

Notes

Byte #

Decimal

Data

Notes

0

Temp H Alarm MSB (Note 1)

26

Reserved

104

Rx Pavg MSB (Note 5 )

1

Temp H Alarm LSB (Note 1)

27

Reserved

105

Rx Pavg LSB (Note 5)

2

Temp L Alarm MSB (Note 1)

28

Reserved

106

Reserved

3

Temp L Alarm LSB (Note 1)

29

Reserved

107

Reserved

4

Temp H Warning MSB (Note 1)

30

Reserved

108

Reserved

5

Temp H Warning LSB (Note 1)

31

Reserved

109

Reserved

6

Temp L Warning MSB (Note 1)

32

RX Pwr H Alarm MSB (Note 5)

110

Status/Control

7

Temp L Warning LSB (Note 1)

33

RX Pwr H Alarm LSB (Note 5)

111

Reserved

8

Vcc H Alarm MSB (Note 2)

34

RX Pwr L Alarm MSB (Note 5)

112

Flag Bits

9

Vcc H Alarm LSB (Note 2)

35

RX Pwr L Alarm LSB (Note 5)

113

Flag Bits

10

Vcc L Alarm MSB (Note 2)

36

RX Pwr H Warning MSB (Note 5)

114

Reserved

11

Vcc L Alarm LSB (Note 2)

37

RX Pwr H Warning LSB (Note 5)

115

Reserved

12

Vcc H Warning MSB (Note 2)

38

RX Pwr L Warning MSB (Note 5)

116

Flag Bits

13

Vcc H Warning LSB (Note 2)

39

RX Pwr L Warning LSB (Note 5)

117

Flag Bits

14

Vcc L Warning MSB (Note 2)

40-45

Reserved

118

Reserved

15

Vcc L Warning LSB (Note 2)

56-94

External Cal Constants (Note 4)

119

Reserved

16

Reserved)

95

Checksum for bytes 0-94

120-122

Reserved

17

Reserved

96

Temperature MSB (Note 1)

123

Reserved

18

Reserved

97

Temperature LSB (Note 1)

124

Reserved

19

Reserved

98

Vcc MSB (Note 2)

125

Reserved

20

Reserved

99

Vcc LSB (Note 2)

126

Reserved

21

Reserved

100

Reserved

127

Reserved (Note 8)

22

Reserved

101

Reserved

128-247

Customer Writable (Note 9)

23

Reserved

102

Reserved

248-255

Vendor Specific

24

Reserved

103

Reserved

25

Reserved

Notes:

1. Temperature (Temp) is decoded as a 16 bit signed twos compliment integer in increments of 1/256 °C.

2. Supply voltage (VCC) is decoded as a 16 bit unsigned integer in increments of 100 μV.

3. Laser bias current (Tx Bias) is decoded as a 16 bit unsigned integer in increments of 2 μA.

4. Transmitted average optical power (Tx Pwr) is decoded as a 16 bit unsigned integer in increments of 0.1 μW.

5. Received average optical power (Rx Pwr) is decoded as a 16 bit unsigned integer in increments of 0.1 μW.

6. Bytes 55-94 are not intended from use but have been set to default values per SFF-8472.

7. Bytes 95 is a checksum calculated (per SFF-8472) and stored prior to product shipment.

8. Byte 127 accepts a write but performs no action (reserved legacy byte).

9. Bytes 128-247 are write enabled (customer writable).