©2015 Glenair, Inc.

REV: 2

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

050-352 Product Brief

PCB Mount Transceiver

10 Mbps – 200 Mbps, SMF, 3.3V

Table 9

Two-Wire interface ID: Data Fields – Address A2h

Byte #

Decimal

Data

Notes

Byte #

Decimal

Data

Notes

Byte #

Decimal

Data

Notes

0

Temp H Alarm MSB (Note 1)

26

TX Pwr L Alarm MSB (Note 4)

104

N/A

1

Temp H Alarm LSB (Note 1)

27

TX Pwr L Alarm LSB (Note 4)

105

N/A

2

Temp L Alarm MSB (Note 1)

28

TX Pwr H Warning MSB (Note 4)

106

Reserved

3

Temp L Alarm LSB (Note 1)

29

TX Pwr H Warning LSB (Note 4)

107

Reserved

4

Temp H Warning MSB (Note 1)

30

TX Pwr L Warning MSB (Note 4)

108

Reserved

5

Temp H Warning LSB (Note 1)

31

TX Pwr L Warning LSB (Note 4)

109

Reserved

6

Temp L Warning MSB (Note 1)

32

N/A

110

Status/Control

7

Temp L Warning LSB (Note 1)

33

N/A

111

Reserved

8

Vcc H Alarm MSB (Note 2)

34

N/A

112

Flag Bits

9

Vcc H Alarm LSB (Note 2)

35

N/A

113

Flag Bits

10

Vcc L Alarm MSB (Note 2)

36

N/A

114

Reserved

11

Vcc L Alarm LSB (Note 2)

37

N/A

115

Reserved

12

Vcc H Warning MSB (Note 2)

38

N/A

116

Flag Bits

13

Vcc H Warning LSB (Note 2)

39

N/A

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

Tx Bias H Alarm MSB (Note 3)

95

Checksum for bytes 0-94

120-122

Reserved

17

Tx Bias H Alarm LSB (Note 3)

96

Temperature MSB (Note 1)

123

Reserved

18

Tx Bias L Alarm MSB (Note 3)

97

Temperature LSB (Note 1)

124

Reserved

19

Tx Bias L Alarm LSB (Note 3)

98

Vcc MSB (Note 2)

125

Reserved

20

Tx Bias H Warning MSB (Note 3)

99

Vcc LSB (Note 2)

126

Reserved

21

Tx Bias H Warning LSB (Note 3)

100

TX Bias MSB (Note 3)

127

Reserved (Note 8)

22

Tx Bias L Warning MSB (Note 3)

101

TX Bias LSB (Note 3)

128-247

Customer Writable (Note 9)

23

Tx Bias L Warning LSB (Note 3)

102

TX Power MSB (Note 4)

248-255

Vendor Specific

24

TX Pwr H Alarm MSB (Note 4)

103

TX Power LSB (Note 4)

25

TX Pwr H Alarm LSB (Note 4)

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 not available

6. Bytes 55-94 are not intended for 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).