DIGISOL 25G SFP28 SR Dual LC Transceivers, DG-SA3010
- 25Gbps serial optical interface
- 850nm VCSEL transmitter and GaAs PIN PD receiver
- Rate Adaptation
- Operating temperature: Commercial (0°C ~ 70°C)
- Maximum link length of 70m via OM3 multimode Fiber (MMF)
- Maximum link length of 100m via OM4 multimode Fiber (MMF)
Digital Diagnostic Functions
As defined by the SFF-8472, Our SFP28 transceivers provide digital diagnostic functions via a 2-wire serial interface, which allows real-time access to the following operating parameters:
- Transceiver temperature
- Laser bias current
- Transmitted optical power
- Received optical power
- Transceiver supply voltage
It also provides a sophisticated system of alarm and warning flags, which may be used to alert end-users when particular operating parameters are outside of a factory-set normal range. The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver Controller (DDTC) inside the transceiver, which is accessed through the 2-wire serial interface. The memories are organized as a series of 8-bit data words that can be addressed individually or sequentially. The 2-wire serial interface provides sequential or random access to the 8 bit parameters, addressed from 0x00h to the maximum address of the memory. For more detailed information, including memory map definitions, please refer the SFF-8472 documentation.
- Transceiver temperature
- Laser bias current
- Transmitted optical power
- Received optical power
- Transceiver supply voltage
It also provides a sophisticated system of alarm and warning flags, which may be used to alert end-users when particular operating parameters are outside of a factory-set normal range. The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver Controller (DDTC) inside the transceiver, which is accessed through the 2-wire serial interface. The memories are organized as a series of 8-bit data words that can be addressed individually or sequentially. The 2-wire serial interface provides sequential or random access to the 8 bit parameters, addressed from 0x00h to the maximum address of the memory. For more detailed information, including memory map definitions, please refer the SFF-8472 documentation.
Digital Diagnostic Monitor Accuracy
The following characteristics are defined over recommended operating conditions:
Parameter Accuracy Unit Notes Internally measured transceiver temperature ±3 deg.C Internally measured transceiver supply voltage ±3 % Measured Tx bias current ±10 % Measured Tx output power ±3 dB 1 Measured Rx received average optical power ±3 dB 2
The following characteristics are defined over recommended operating conditions:
| Parameter | Accuracy | Unit | Notes |
|---|---|---|---|
| Internally measured transceiver temperature | ±3 | deg.C | |
| Internally measured transceiver supply voltage | ±3 | % | |
| Measured Tx bias current | ±10 | % | |
| Measured Tx output power | ±3 | dB | 1 |
| Measured Rx received average optical power | ±3 | dB | 2 |
