100GBASE-ER4 QSFP28 1310nm 40km Transceiver, Generic Compatible
Generic 100G QSFP28 1310nm 40km
This OLSQXXTXL-CD40 provides a third-party low-cost 100GBASE-ER4
QSFP28 transceiver replacement that works with the Generic
QSFP-100G-ER4 optics. This QSFP28 transceiver support 100Gbps speed
and 40km link distance over single mode fiber. It is suitable for
fiber connectivity in data centers, high-performance computing
networks, enterprise core, distribution layers, and service
provider applications.
Features
• Third-party compatible replacement for Generic 100GBASE-ER4
QSFP28 Transceiver
• QSFP28 MSA compliant
• Compliant with SFF-8665 and SFF-8679
• Metal enclosure for lower EMI
• Built-in digital diagnostic functions for real-time monitor
• RoHS compliant and lead-free
Electrical Characteristics (Top=0~70℃, Vcc=3.14~3.47V)
(Tested under recommended operating conditions,unless otherwise
noted)
| Parameter | Symbol | Min | Type | Max | Unit | Notes |
| Transmitter |
| Signaling rate per lane | DRPL | 25.78125 ± 100 ppm | Gb/s | |
| Differential input return loss (min) | RLd(f) | 9.5 – 0.37f, 0.01≤f<8 4.75 – 7.4log10(f/14), 8 ≤f<19
| dB | |
Differential to common mode input return loss (min) | RLdc(f) | 22-20(f/25.78), 0.01≤f<12.89 15-6(f/25.78), 12.89≤f<19
| dB | |
| Differential termination mismatch | Tm | | | 10 | % | |
| Eye width | Ew | | | 0.46 | UI | |
| Applied pk-pk sinusoidal jitter | Ppj | Per IEEE 802.3bm | | |
| Eye height | Eh | | 95 | | mV | |
| DC common mode voltage | DCv | -350 | | 2850 | mV | |
| Receiver |
| Signaling rate per lane | DRPL | 25.78125 ± 100 ppm | Gb/s | |
| Differential data output swing | Vout,pp | 400 | | 800 | mV | |
| Eye width | Ew | 0.57 | | | UI | |
| Vertical eye closure | | | | 5.5 | dB | |
| Differential output return loss (min) | RLd(f) | 9.5 – 0.37f, 0.01≤f<8 4.75 – 7.4log10(f/14), 8 ≤f<19
| dB | |
Common to differential mode conver- sion return loss (min)
| RLdc(f) | 22-20(f/25.78), 0.01≤f<12.89 15-6(f/25.78), 12.89≤f<19
| dB | |
| Differential termination mismatch | Tm | | | 10 | % | |
| Transition time, 20% to 80% | Tr,Tf | 12 | | | ps | |
Notes:
1.20%~80%
Optical Characteristics (Top=0~70℃, Vcc=3.14~3.47V)
(Tested under recommended operating conditions,unless otherwise
noted)
| Parameter | Symbol | Unit | Min | Type | Max | Notes |
| Transmitter |
| Signaling rate, each lane | | Gb/s | 25.78125 ±100 ppm | 1 |
| Four Lane Wavelength Range | λ1 | nm | 1294.53 | 1295.56 | 1296.59 | |
| λ2 | 1299.02 | 1300.05 | 1301.09 | |
| λ3 | 1303.54 | 1304.58 | 1305.63 | |
| λ4 | 1308.09 | 1309.14 | 1310.19 | |
| Total launch power | Pout | dBm | | | 10.5 | |
| Average launch power, each lane | Pavg | dBm | -2.9 | | 4.5 | 2,7 |
| Optical modulation amplitude, each lane (OMA) | OMA | dBm | 0.1 | | 4.5 | |
| Extinction ratio | ER | dB | 7 | | | |
| Side-mode suppression ratio | SMSR | dB | 30 | | | |
Average launch power of OFF transmitter, per lane | POFF | dBm | | | -30 | |
| Optical return loss tolerance | | dB | | | 20 | |
| Transmitter reflectance | | dB | | | –12 | |
| Transmitter eye mask {X1, X2, X3, Y1, Y2, Y3} | | | {0.25, 0.4, 0.45, 0.25, 0.28, 0.4} | 3 |
| Receiver |
| Receive Rate for Each Lane | | Gb/s | 25.78125 ±100 ppm | 4 |
| Four Lane Wavelength Range | λ1 | nm | 1294.53 | 1295.56 | 1296.59 | |
| λ2 | 1299.02 | 1300.05 | 1301.09 | |
| λ3 | 1303.54 | 1304.58 | 1305.63 | |
| λ4 | 1308.09 | 1309.14 | 1310.19 | |
| Overload Input Optical Power | Pmax | dBm | -1 | | | |
Average Receive Power for Each Lane | Pin | dBm | -20.9 | | -4.9 | 5,7 |
| Receiver Sensitivity(OMA)per lane | Psens1 | dBm | | | -18.6 | |
| Stressed Sensitivity(OMA) per lane | Psens2 | dBm | | | -16.6 | 6 |
| Return Loss | RL | dB | -26 | | | |
| Receiver Electrical 3dB upper cutoff frequency, per lane | | GHz | | | 31 | |
| Los De-Assert | Pd | dBm | | | -24 | |
| Los Assert | Pa | dBm | -26 | | | |
| Loss Hysteresis | Pd-Pa | dBm | | 2 | | |
Notes:
1. Transmitter consists of 4 lasers operating at 25.78Gb/s each.
2. Minimum value is informative.
3. Hit ratio 5x10-5.
4. Receiver consists of 4 photodetectors operating at 25.78Gb/s
each.
5. Minimum value is informative, equals min TxOMA with infinite ER
and max channel insertion loss.
6. SRS is measured with vertical eye closure penalty of 1.8 dB max,
J2 of 0.30 UI, and J9 of 0.47 UI.
7. Power value and power accuracy are with all channels on..
Note: When using this 100G QSFP28 ER4 transceiver in short-distance
transmission, please add a LC fiber attenuator (≥9dB) to avoid receiver damage and overload.
