The XPO optical transceiver, with a single-module bandwidth of 12.8 Tbps, increases the front-panel density of switches to 4 times that of OSFP solutions. While high-density switch ports boost computing power, they also introduce new challenges for fiber optic cabling. This article briefly introduces the MPO pre-terminated trunk cables that support XPO optical modules.
- What is XPO?
XPO (eXtra-dense Pluggable Optics) is a new-generation optical module specifically designed for high-density interconnect in AI data centers. A single module delivers 12.8 Tbps bandwidth (64 lanes × 200 Gbps PAM4), which is 8 times that of a traditional OSFP module. In a 1RU space, it achieves 204.8 Tbps switching capacity, with a front-panel density 4 times that of OSFP.
- MPO Pre-terminated Trunk Cable
The XPO module’s front panel is equipped with 8 MPO optical ports, each corresponding to a 1.6 Tbps bandwidth channel. XPO uses MPO-16 connectors (8 transmit / 8 receive) to match the 64 internal 200 Gbps high-speed lanes. Based on this interface design, a single 128-fiber MPO pre-terminated trunk cable (8x MPO-16/APC/Female) is sufficient to complete a centralized connection between the module and external equipment.
- Specifications of the 128-Fiber MPO Pre-terminated Trunk Cable
|
Parameter |
Specification |
|
Connector A |
8x MPO-16/APC/Female |
|
Connector B |
8x MPO-16/APC/Female |
| Fiber type |
SM G.657.A1 |
|
Fiber count |
128 |
|
Jacket color |
Yellow |
| Trunk outer diameter |
13.5 mm |
| Breakout outer diameter |
3.0 mm |
|
Connector housing color |
Green |
|
Connector boot color |
Black |
|
Boot type |
Push-pull boot |
|
Polarity |
A / B / Custom |
| Sheath material |
LSZH |
| Min. bend radius (dynamic) |
20D |
|
Min. bend radius (static) |
10D |
|
Operating temperature |
–20°C ~ +70°C |
| Storage temperature |
–20°C ~ +70°C |
Cable Structure Diagram
MPO—16/APC/Female Connector Parameters
|
Parameter |
Specification |
|
Polish type |
APC |
|
Fiber count |
16 |
| Insertion loss |
Max. 0.35 dB |
|
Typical 0.25 dB |
|
| Return loss |
≥60 dB (APC) |
- Advantages of MPO Pre—terminated Trunk Cables
Space saving: The trunk cable integrates 8 MPO-16 interfaces into a compact 128-fiber structure, significantly reducing cabling footprint at the front and rear of racks and improving airflow management.
Neat and manageable: Cabling inside the rack is more orderly, reducing tangling and simplifying daily maintenance.
Fast deployment: Pre-terminated trunk cables are plug-and-play, greatly reducing on-site cabling and installation time.
- Ordering Information
