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OptiX PTN 3900 Transmission Systems

Primarily used at the core layer of a metropolitan transmission network; can also be used to provide Packet Transport Network (PTN) aggregation services.

Huawei’s OptiX PTN 3900 handles CES, ATM, Ethernet, IP over PW, and L3 VPN services. Supporting 40 GE interfaces, the system has a distributed architecture with separate control and forwarding planes. 1+1 redundancy protects the main control boards, cross-connect boards, and power supply modules.

With capacity up to 640 Gbit/s, the PTN 3900 offers a highly reliable, high-capacity platform for core or aggregation use.

Versatile packet transmission engine with carrier-grade reliability and comprehensive management and security features for core layer of metropolitan networks or PTN aggregation services

  • Support for Circuit Emulation over Packet (CEP) interfaces, aggregates VIP VC4 private line services
  • Network-level protections include dual homing, Virtual Private Network (VPN) Fast Re-Route (FRR), and Label Switched Path (LSP) Automatic Protection Switching (APS) to ensure reliable forwarding services
  • A&M mechanisms include Y.1731 and Multi-protocol Label Switching Transport Profile (MPLS-TP) for rapid fault detection and device performance monitoring
  • Comprehensive QoS features to prioritze critical services
  • 40 GE interface supports hard and soft pipes for high performance with low latency
  • SDN-based design simplifies capacity expansion and evolution



PTN 3900-8

PTN 3900

Subrack Dimensions (W x D x H)

Full Subrack Weight

442 mm x 294 mm x 525 mm

41.5 kg

496 mm x 295 mm x 800 mm

60 kg

Working Voltage

Environmental Requirements

-38.4V to -72.0V

Working temperature -5℃ to 45℃,Storage temperature -40℃ to 70℃,Relative Humidity 5% RH to 95% RH,Altitude ≤ 4,000m

Switching Capacity

320 Gbit/s

640 Gbit/s

Interface Types

E1: 256

ATM STM-1: 72

STM-1(T1): 16

STM-1: 72


POS: 16

FE(e): 96

FE(o): 64

GE(e): 64

GE(o): 112

10 GE: 32

40 GE: 8

E1: 512

ATM STM-1: 128

STM-1(T1): 32

STM-1: 128


POS: 32

FE(e): 192

FE(o): 128

GE(e): 128

GE(o): 224

10 GE: 64

40 GE: 16

Service Types

E-Line, E-LAN, L3VPN, CES, and ATM

Service Protection


Clock Synchronization

External clock, IEEE 1588v2, Synchronous Ethernet, and TDMClock Synchronization


802.1x and user authentication

Other (HQoS, MPLS, OAM)

HQoS: Five-level H-QoS scheduling and traffic shaping; compatible with the DiffServ QoS model

MPLS: RSVP-TE protocol, LDP protocol, and static LSP

OAM: Y.1731, MPLS-TP, BFD, 802.1ag, 802.3ah, LPT, and PRBS


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