400GBASE-ER8 QSFP-DD PAM4 1310nm 40km DOM Optical Transceiver Module (SMF, 1310nm, 40km, LC, DOM)
The 400GBASE-ER8 module supports link lengths of up to 40km over a standard pair of G.652 single mode fiber (SMF) with duplex LC connectors. It is compliant to IEEE 802.3cn protocol and 400GAUI-8, QSFP-DD HW Rev 5.1 and QSFP-DD CMIS Rev 4.0 standard. The 400 Gigabit Ethernet signal is carried over eight wavelengths. Multiplexing and demultiplexing of the eight wavelengths are managed within the device.
Features:
For 400GBASE-ER8 Ethernet links
Integrated Clock-Data-Recovery (CDR)
PAM4 modulated signal
53.125Gbit/s PAM4 Channel Electrical Serial Interface (400GAUI-8)
Supported Data Rates: 425 Gbit/s
Up to 40 km via Singlemode OS2
LC-Duplex Connector
| FORM FACTOR | QSFP-DD | PROTOCOLS | 400G Ethernet |
| CONNECTOR / POLISH | LC-Duplex PC | INBUILT FEC | No |
| INTERFACE | Singlemode | POWERBUDGET (DB) | 18 dB |
| TYPE | ER8 | TRANSMIT MIN/MAX | -0.6 dBm / 5.6 dBm |
| DISTANCE | 40 km | RECEIVER MIN/MAX | -18.6 dBm / -4.4 dBm (overload) |
| TEMPERATURE RANGE | 0°C - 70°C | WAVELENGTH TX (TYPICAL) |
1273.5 nm, 1277.9 nm, 1282.3 nm, 1286.7 nm, 1295.6 nm, 1300 nm, 1304.6 nm, 1309.1 nm |
| LANE COUNT | 8x (Tx/Rx) | WAVELENGTH RX (TYPICAL) |
1273.5 nm, 1277.9 nm, 1282.3 nm, 1286.7 nm, 1295.6 nm, 1300 nm, 1304.6 nm, 1309.1 nm |
| BANDWIDTH | 425 Gbit/s | LASER | EML |
| BANDWIDTH PER LANE | 53.13 Gbit/s | RECEIVER TYPE | APD |
| DIGITAL DIAGNOSTIC MANAGEMENT (DDM) | Yes, internally calibrated | MODULATION | PAM4 |
| POWER CONSUMPTION | 15.4 W | TRANSMIT AND DISPERSION PENALTY | 3.4 dB |
| CDR | TX and RX | EXTINCTION RATIO | 6 dB |
| SGMII | No |