CX₁ = Mode

• CM: multimode  

• CS: single mode

X₂ X₃ X₄ = Transmitter

• 85V: 850nm VCSEL

• 13L: 1310nm LED

• 13F: 1310nm FP laser

• 13D: 1310nm DFB

• 15F: 1550nm FP laser

• 15D: 1550nm DFB

• 3T5: Tx 1310/Rx 1550

• 5T3: Tx 1550/Rx 1310

• 4T3: Tx 1490/Rx 1310

• 27D: 1270nm DFB

• 29D: 1290nm DFB

• 31D: 1310nm DFB

• 33D: 1330nm DFB

• 35D: 1350nm DFB

• 37D: 1370nm DFB

• 39D: 1390nm DFB

• 41D: 1410nm DFB

• 43D: 1430nm DFB

• 45D: 1450nm DFB 

• 47D: 1470nm DFB

• 49D: 1490nm DFB

• 51D: 1510nm DFB

• 53D: 1530nm DFB

• 55D: 1550nm DFB

• 57D: 1570nm DFB

• 59D: 1590nm DFB

• 61D: 1610nm DFB

X₅X₆ = Data Rate

• 03: 155Mbps

• 12: 622Mbps

• 24: 1.25Gbps

• 41: 2.125Gbps

• 48: 2.5Gbps

X₇ = Package

• A: Duplex 1x9

• K: Duplex SFF 

• B: BIDI 1x9 Receptacle

• C: BIDI 1x9 Pigtail

• D: BIDI SFF Receptacle

• E: BIDI SFF Pigtail

• F: SFP

• G: GBIC

• H: BIDI SFP

• I: BIDI GBIC

X₈ = Voltage  

• 3: 3.3V

• 4: 3.3/5V

• 5: 5V

X₉ = Range

• C: Custom range

• S: Short range

• M: Mediate range

• L: Long range

• U: Ultra long range

X₁₀ = Signal Detection

• P: PECL DC/DC

• T: TTL AC/AC

X₁₁ = Temperature

• C: 0-70 oC

• I: -40 -85 oC

X₁₂ = Connector

• C: SC

• F: FC

• T: ST

• L: LC

• M: MU

X₁₃ = Digital Diagnostic

• D: Digital Diagnostic 
• Blank: No Digital Diagnostic 

Please click here to return to the section of transceivers for more detail choice.