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OptiX PTN 1900 Transmission Systems

Highly reliable, mid-range transmission platform for use in Packet Transport Networks (PTNs) to aggregate and forward traffic with comprehensive device and network-level protection features.

Excellent choice for aggregation layer of metropolitan transmission networks, supporting CES, ATM, Ethernet, IP over PW, and L3 VPN services; supports 80 Gbit/s capacity and 40 GE interfaces.

Easy setup and maintenance provides flexibility and scalability for growth.

Optix PTN1900 Transmission


  • High-capacity scheduling achieves service switching capability as high as 80 Gbit/s;10 GE interface supports hard and soft pipes for high performance and low latency
  • Support for Circuit Emulation over Packet (CEP) interfaces aggregates VIP VC4 private line services
  • Device-level 1+1 redundancy protects the main control boards, cross-connect boards, and power supply modules; network-level protections include dual homing, VPN Fast Reroute (FRR), and Label Switched Path (LSP) Automatic Protection Switching (APS)
  • SDN-based design simplifies provisioning and management; O&M mechanisms include Y.1731 and MPLS-TP for rapid fault detection and monitoring device performance
  • Comprehensive QoS features tensure priority for critical services


Item PTN 1900
Subrack dimensions (H x W x D) 220 mm x 436 mm x 295 mm (8.66 in. x 17.17 in. x 11.61 in.)
Fully loaded subrack weight 15 kg (33.08 lb)
Working voltage –38.4 V to –72.0 V
Standard power consumption 190 W
Switching capacity 80 Gbit/s
Number of slots

7 slots:

2 slots for main control boards

5 slots for service boards

Environment requirements

Long-term working temperature: 0ºC (32ºF) to 50ºC (122ºF); short-term working temperature: –5ºC (23ºF) to 55ºC (131ºF);

storage temperature: –40ºC (–40ºF) to 70ºC (158ºF); relative humidity: 5% RH to 95% RH; altitude ≤ 4000 m

Interface capacity of the equipment

E1: 160

ATM STM-1: 40

Channelized STM-1: 48

STM-1/STM-4 POS: 10

FE electrical port: 60

FE optical port: 40

GE electrical port: 14

GE optical port: 22

10GE: 4

Service types

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

Service protection LMSP, LAG, LSP APS, MC-PW APS, ring protection, VRRP, MC-LAG, IP FRR, and VPN FRR
Clock synchronization External clock, IEEE 1588v2, synchronous Ethernet, and TDM clock synchronization

Five-level QoS scheduling and traffic shaping


RSVP-TE, LDP, and static LSPs


Y.1731, MPLS-TP, birdirectional forwarding detection (BFD), 802.1ag, 802.3ah, link-state pass through (LPT), and pseudo random binary sequence (PRBS)

Alarms and performance monitoring Supported
Security 802.1x and user authentication