FFANTRAY-MX480-HC-S - MX480 High Capacity Fan Tray | Juniper
MPN: FFANTRAY-MX480-HC-S ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
FFANTRAY-MX480-HC-S Overview
A fan tray is a field-replaceable cooling subsystem used in chassis-based network equipment. In the power-management hierarchy of a router chassis, the cooling system sits alongside the power supply modules and air filter as shared infrastructure: it removes heat generated by routing engines, switching control boards (SCBs), and Modular Port Concentrators (MPCs), while the air filter prevents dust ingress. Fan trays are hot-swappable so cooling redundancy is preserved during replacement.
Key characteristics of the FFANTRAY-MX480-HC-S include its six-fan architecture, high-capacity airflow rating for high-power configurations, and rear vertical installation in the MX480 chassis. According to the Juniper MX480 cooling system documentation, the router supports one fan tray plus one air filter, and the high-capacity version is required for chassis populated with next-generation, high-power MPC line cards.
The high-capacity designation matters because dense MX480 configurations running 400G-class MPCs dissipate substantially more heat than base bundles. Deploying the HC fan tray ensures thermal compliance and chassis stability under maximum load, supporting continuous cooling for carrier-edge deployments in dense points of presence (POPs).
Typical applications include MX480 spare-parts stocking for carriers and ISPs, data center edge routing, and VPN or broadband multiplay service platforms. Network operators keep the -S (spare) SKU on hand so a failed fan tray can be replaced immediately without waiting on RMA cycles.
When installing, verify your MX480 configuration requires high-capacity cooling; a standard-capacity fan tray cannot adequately cool high-power MPC builds. Confirm airflow direction matches the installation environment and always keep the air filter maintained alongside the fan tray.
This page synthesizes distributor availability, same-chassis alternatives, and practical deployment guidance not consolidated in the Juniper hardware guide alone.
Drop-in alternatives for FFANTRAY-MX480-HC-S — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with FFANTRAY-MX480-HC-S (same form factor and footprint) — differing in Compatible Chassis, Product Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
FFANTRAY-MX480-HC-BB
✅ Drop-In✓ In Stock
$1480 / Unit
View Datasheet →FFANTRAY-MX480-S
✅ Drop-In📋 Reference alternative (not in catalog)
FFANTRAY-MX480-HC-S Specifications
| Product Type | High-capacity fan tray (spare) |
| Compatible Chassis | Juniper MX480 Universal Routing Platform |
| Number of Fans | 6 |
| Installation Location | Rear of chassis, vertical mounting |
| Cooling Capacity Class | High capacity (HC) |
| Associated Air Filter | MX480 air filter (separate FRU) |
| Application Focus | High-power MPC line card configurations, 400G line rates |
| Field Replaceable | Yes (FRU) |
| NSN | 5999-01-677-6731 |
| RoHS Status | unknown |
FFANTRAY-MX480-HC-S standard Pin Configuration Guide
Pin configuration for FFANTRAY-MX480-HC-S (standard package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for FFANTRAY-MX480-HC-S.
Refer to the datasheet for full pin configuration.
Typical Applications
FFANTRAY-MX480-HC-S is suitable for 6 applications: Carrier Edge Routing Spare Stocking, Data Center Edge and Peering, Broadband Multiplay Service Platforms, High-Power MPC Line Card Builds, Enterprise VPN and High-Speed Transport, Network Refresh and Secondary-Market Deployments.
Carrier Edge Routing Spare Stocking
The FFANTRAY-MX480-HC-S is primarily deployed as a cold-spare FRU in carrier and ISP spare-parts inventories for MX480-based edge sites. Because the MX480 supports a single fan tray, a fan tray failure degrades cooling redundancy immediately, so operators stock the -S spare to enable same-day replacement without waiting on RMA cycles. In dense points of presence where MX480 chassis run high-power MPC line cards at 400G line rates, the six-fan high-capacity tray is mandatory to keep SCBs, routing engines, and MPCs within Juniper's acceptable temperature range. Recommended practice is one HC spare per site or per region depending on SLA targets, with the air filter replaced at the same maintenance interval.
Recommended
Data Center Edge and Peering
In data center edge and peering deployments, MX480 chassis aggregate high-speed transport and VPN services where sustained traffic keeps line cards at high power draw. The FFANTRAY-MX480-HC-S provides the enhanced thermal management required for these builds: its six-fan high-capacity design ensures continuous cooling for next-generation MPCs operating at 400G rates. The fan tray installs vertically in the rear of the chassis as a field-replaceable unit, allowing replacement without pulling the router from service. Performance consideration: because the tray is a single point of the cooling system, airflow direction and front-to-back rack airflow alignment should be verified at installation to preserve chassis thermal compliance.
Recommended
Broadband Multiplay Service Platforms
Juniper positions the MX480 as an Ethernet-optimized edge router for next-generation broadband multiplay services, where residential subscribers depend on continuous availability. The FFANTRAY-MX480-HC-S keeps all router components within the acceptable temperature range even when the chassis is populated with high-density DPC and MPC line cards. As a hot-swappable FRU mounted in the rear of the chassis, it supports in-service replacement, which is essential for multiplay platforms with strict availability SLAs. Operators in this segment typically pair the fan tray with regular air filter maintenance, since dust loading reduces effective airflow and raises internal chassis temperatures over time.
Recommended
High-Power MPC Line Card Builds
When an MX480 is upgraded with next-generation high-power MPC line cards - including 400G-class MPCs - the standard cooling configuration may no longer provide sufficient airflow headroom. CPU Republic's deployment guidance notes that the FFANTRAY-MX480-HC-S provides the enhanced thermal management such chassis require, ensuring thermal compliance, chassis stability, and continuous cooling redundancy at 400G line rates. The six-fan tray's high-capacity rating directly addresses the elevated heat load of these builds. Engineering consideration: verify chassis thermal compliance against Juniper's MX480 hardware specifications before and after line card upgrades, since undercooling accelerates component aging and can trigger chassis thermal shutdown.
Recommended
Enterprise VPN and High-Speed Transport
The MX480 enables high-speed transport and VPN services for enterprise and wholesale networks, and these service mixes concentrate traffic - and therefore heat - on a subset of line cards. The FFANTRAY-MX480-HC-S maintains acceptable operating temperatures across the chassis regardless of traffic distribution, its six fans delivering high-capacity airflow through the vertically rear-mounted tray. For VPN concentrator builds, Juniper's cooling system documentation emphasizes that the fan tray and air filter work together; a clogged filter forces fans to higher speeds, increasing acoustic noise and reducing fan life. Sites running 24/7 transport services should schedule filter service alongside fan tray health monitoring.
Recommended
Network Refresh and Secondary-Market Deployments
A large secondary market exists for MX480 equipment: resellers such as MLCP, Network Republic, and RH Electronics supply new, refurbished, and used FFANTRAY-MX480-HC-S units with warranty options. Network operators refreshing or expanding MX480 footprints at lower cost can source the high-capacity fan tray from these channels; MLCP reports same-day or 1-2 business day shipping on in-stock items. Because the tray is a chassis-matched mechanical FRU, buyers should verify the exact MPN (HC versus standard capacity) before purchase - a standard tray in a high-power chassis will compromise thermal compliance. Confirm warranty and condition grading (new, refurbished, used) with the reseller at quote time.
Recommended
Recommended Products Summary
Engineering reference data for FFANTRAY-MX480-HC-S — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | FFANTRAY-MX480-HC-BB | FFANTRAY-MX480-S |
|---|---|---|---|
| Package (Slot) | MX480 rear fan tray slot | MX480 rear fan tray slot - same | MX480 rear fan tray slot - same |
| Brand | Juniper Networks | Juniper Networks | Juniper Networks |
| Cooling Capacity Class | High capacity (HC) | High capacity (HC) | Standard capacity |
| Suitable for High-Power MPC / 400G Builds | Yes | Yes | No |
| SKU Role | Spare (purchased separately) | Included in MX480 base bundles | Standard tray SKU / spare |
| Compatible Chassis | MX480 | MX480 | MX480 |
Key Differentiators
- High-capacity airflow for 400G builds (vs FFANTRAY-MX480-S)
- Six-fan single-FRU design (vs FFANTRAY-MX480-S)
- Trade-off: higher power draw and noise than standard tray (vs FFANTRAY-MX480-S)
Design Notes
Do not install the standard-capacity MX480 fan tray (FFANTRAY-MX480-S) in a chassis populated with high-power MPC line cards. Juniper's cooling system documentation and reseller deployment guidance both indicate the high-capacity six-fan tray is required for next-generation MPC builds at 400G line rates. An under-specified fan tray will cause elevated chassis temperatures, increased fan-speed alarms, and potential thermal shutdown. Always confirm the installed line card power budget against the MX480 hardware specifications on the Juniper Pathfinder tool before selecting the fan tray variant.
The MX480 cooling system is a paired design: one fan tray plus one air filter, both rear-mounted. A clogged air filter forces the six fans to run at higher speeds to maintain airflow, raising acoustic noise, increasing power draw, and shortening fan life. Schedule air filter inspection and replacement on the same maintenance interval as fan tray health checks, and monitor chassis inlet temperature and fan RPM via the routing engine CLI to detect cooling degradation before it breaches the acceptable temperature range.
As a mechanical FRU, the fan tray requires no PCB-level design work, but rack-level layout matters. Install the MX480 in a standard 800-mm enclosed cabinet, 19-in equipment rack, or telco open-frame rack per Juniper's chassis documentation, and ensure rear clearance so the vertical fan tray can be slid out for service. Verify rack airflow direction matches the chassis airflow pattern; blocked rear exhaust in enclosed cabinets recirculates hot air and defeats the six-fan tray's cooling capacity.
Compliance Information
Compliance data not present in verified web data. The part is catalogued under NSN 5999-01-677-6731 (Electronic Equipment Air Cooler). Consult Juniper Networks for formal RoHS/REACH declarations.