Gigac Technology's 40G PSM4 QSFP+ optical modules (DTACQ44/DTACQ45 series) utilize a hot-swappable QSFP+ form factor, support 4 x 10.3Gbps independent full-duplex channels, and are compatible with the QSFP MSA and CML electrical interface standards.
These products offer two transmission modes:
The eSR4 version (850nm wavelength, MPO interface) supports 300m transmission over OM3 multimode fiber with power consumption ≤1.5W;
The LR4 version (1310nm wavelength, MPO interface) supports 10km long-distance transmission over single-mode fiber with power consumption ≤3.5W.
The entire series integrates digital diagnostic monitoring (DDM) functionality, supports a single +3.3V power supply, and is available in wide operating temperature ranges of 0-70°C (commercial grade) and -40-85°C (industrial grade). High-density MTP/MPO connectors enable rapid deployment. Designed specifically for 40G Ethernet architectures in data centers, these modules are suitable for TOR switch interconnects, server cluster expansion, and metropolitan area network requirements. Long-distance network transmission scenarios meet the needs of high reliability and low latency networks.
Product Features:
Hot-swappable QSFP+ form factor
10.3 Gbps per channel
Four independent full-duplex channels
MTP/MPO optical connector
QSFPMSA compatible
Digital diagnostics
eSR4 (enhanced short reach) enables over 300 meters of transmission over OM3 multimode ribbon fiber
LR4 (long reach) enables up to 10 km of transmission over single-mode ribbon fiber
CML-compatible electrical I/O
Single +3.3V power supply
XLPPI electrical interface (eSR4 maximum power 1.5W, LR4 maximum power 3.5W)
Operating temperature: 0-70°C; -40-85°C
Applications:
Data Center
40G Ethernet
Product Information Sheet:
| Part Number | Data Rate | Wavelength | Distance | Fiber | DDM | Interface | Temp |
| DTACQ44-FFMSC | 40G | 850nm | eSR4:300m | OM3 | Yes | MPO | 0°C~+70°C |
| DTACQ44-FFMSJ1 | 40G | 850nm | eSR4:300m | OM3 | Yes | MPO | -40°C~+85°C |
| DTACQ44-FFMSJ2 | 40G | 850nm | eSR4:300m | OM3 | Yes | MPO | -40°C~+85°C |
| DTACQ45-FFMLC | 40G | 1310nm | LR4:10km | SML | Yes | MPO | 0°C~+70°C |
| DTACQ45-FFMLJ1 | 40G | 1310nm | LR4:10km | OM3 | Yes | MPO | -40°C~+85°C |
| DTACQ45-FFMLJ2 | 40G | 1310nm | LR4:10km | OM3 | Yes | MPO | -40°C~+85°C |
| DTACQ44-FFMSJ1 | 40G | 850nm | eSR4:300m | OM3 | Yes | MPO | -40°C~+85°C |
| DTACQ44-FFMSJ2 | 40G | 850nm | eSR4:300m | OM3 | Yes | MPO | -40°C~+85°C |
