Ciena 170-3903-822 are telecom-grade hardware modules used within Ciena optical transport and packet networking platforms.

These part numbers are associated with carrier-class optical networking equipment, commonly deployed in:

• DWDM optical transport systems
• Metro Ethernet infrastructure
• Telecom backbone networks
• Service provider transmission platforms

These modules are generally supplied as:

• Optical transport cards
• Interface modules
• Service or control modules
• Replacement FRU (Field Replaceable Units)

for Ciena packet-optical systems.

? KEY FEATURES

• Carrier-grade telecom infrastructure hardware
• Designed for Ciena optical transport platforms
• Hot-swappable modular architecture
• High-availability telecom deployment support
• Compatible with metro and long-haul optical systems
• Enterprise and service-provider reliability

⚙️ TECHNICAL SPECIFICATIONS

⚠️ Exact public specifications for these internal Ciena FRU numbers are limited.

Typical Characteristics

• Product type:
  • Optical transport module
  • Telecom interface card
  • Packet-optical network component
• Deployment:
  • Carrier and telecom chassis systems
• Architecture:
  • Modular telecom platform integration
• Application:
  • Optical transport
  • Ethernet aggregation
  • DWDM networking
  • Metro packet transport

? USE CASES

• Telecom optical backbone networks
• DWDM transmission systems
• Carrier Ethernet services
• Metro aggregation infrastructure
• Service provider network expansion
• Telecom spare parts inventory

? STATUS

• Typically supplied as:
  • OEM telecom replacement modules
  • Refurbished telecom spare parts
  • Carrier maintenance inventory
• Frequently found in:
  • Legacy telecom infrastructure
  • Carrier upgrade projects
  • Secondary/refurbished telecom markets