GPON ONT with 1-port GbE LAN

The Zyxel PMG2005-T20E GPON ONT with 1-port GbE LAN provides high-speed passive fiber internet access to meet the market requirements for high-performance Gigabit bandwidth.

  • Gigabit fiber
  • Bridge/router

Flexibility that boosts the efficiency of the existing infrastructure

The bridge/router function allows Zyxel PMG2005-T20E to be configured as an SFU or HGU. This allows service providers to start a new deployment or upgrade their service by connecting to the subscriber’s existing broadband router. This dual-mode flexibility not only minimizes the CAPEX, but also saves future costs when service demand or deployment scenarios change.

Excellent user experience with customizable product combinations

Adding Zyxel PMG2005-T20E into the network as a Layer-2 ONT can help service providers to meet different subscribers’ demands as it leaves room for further customization by adding any Layer-3 device based on the deployment needs.

System specifications

GPON features
  • Complies with ITU-T G.984/G.988 GPON standards:
    • G.984.1 general characteristics
    • G.984.2 Physical Media Dependent (PMD) layer specifications
    • G.984.3 transmission convergence layer specifications
    • G.984.4 ONT management and control interface specification
    • G.988 ONU management and control interface (OMCI) specification
  • Complies with class B+ type PMD
  • Transmission rates: 2.488 Gbps (DS)/ 1.244 Gbps (US)
  • Wavelength: 1490 nm (DS) & 1310 nm (US)
  • Physical distance reach to 20 km
  • Dynamic Bandwidth Allocation (DBA)
  • Configurable AES DS and FEC DS/US
  • GPON Encapsulation Method (GEM) supports Ethernet packet
  • Supports GEM header removal/insertion and data extraction/ segmentation (GEM SAR)
  • Flexible mapping between T-CONTs and GEM port
  • Supports up to 8 T-CONTs with 32 GEM ports
  • 8 priority queues (US) on each GPON T-CONT
Networking features
  • MAC address learning
  • MAC filtering
  • Multicast transparent
  • IPv6 address transparent
  • PPPoE pass-through
  • Routing Information Protocol (RIP): static routing, dynamic routing
  • Network Address Translation (NAT)/Network Address Port Translation (NAPT)
  • IPv4 NAT, IPv4/IPv6 routing
  • IPv4/IPv6 dual stack/IPv6 6RD/DS-lite
  • Port forwarding
  • PPPoE client
  • Dynamic Host Configuration Protocol (DHCP)
  • IGMP v1/v2/v3 snooping
  • IGMP fast leave
  • IPv6 MLD v1/v2 snooping
VLAN functional specifications
  • VLAN IEEE 802.1Q
  • Protocol-based VLAN support
  • 1:1 VLAN, N:1 VLAN, VLAN transparent bridge
  • LAN port-based VLAN tag add and tag removal
  • QinQ VLAN
  • Per-port QoS and CoS mapping according to IEEE 802.1q and IEEE 802.1p priority
  • Rate limitation
  • Flow mapping base on 802.1p/VLAN ID
  • Stateful Packet Inspection (SPI) firewall
  • MAC/IP/URL addresses filtering
  • Supports protection against illegal message (DoS, ARP) attacks
  • Multicast/broadcast/unicast storm control
  • Standard OMCI (ITU-T G.984.4)
  • Telnet (CLI)
  • TR-069 CPE WAN Management Protocol (CWMP) client
  • Firmware upgrade via FTP/HTTP/OMCI, GUI local access

Hardware specifications

Hardware interface
  • WAN: one Gigabit optical interface (SC/APC)
  • LAN: one 10/100/1000 auto MDI/MDI-X RJ-45
  • Reset: one reset/restore factory default button
  • Power switch: one push-type button
  • LEDs indicators:
    • Power
    • Passive Optical Network (PON)
    • Internet
    • LAN

Power consumption

  • 12 V DC/1 A

Physical specifications

  • Item dimensions (WxDxH): 109.4 x 83.6 x 36.5 mm (4.3” x 3.29” x 1.44”)
  • Item weight: 113 g (0.25 lb.)
  • Packing dimensions (WxDxH): 131 x 130 x 95 mm (5.16” x 5.12” x 3.74”)
  • Packing weight: 342 g (0.75 lb.)

Environment specifications

Operating environment
  • Temperature: 0°C to 40°C (32°F to 113°F)
  • Humidity: 10% to 90% RH (non-condensing)
Storage environment
  • Temperature: -30°C to 70°C (-22°F to 158°F)
  • Humidity: 10% to 95% RH (non-condensing)


  • EMC: FCC, IC

Package contents

  • Power adapter
  • Ethernet cable
  • Quick start guide

* All specifications are subject to change without notice.



File type Model Version Release date Language Download
PMG2005-T20E, Regulation Certificates for EMC, FCC Certificate/ Regulation Report
Certification PMG2005-T20E 001.351-01-01177 November 25, 2020 English
Datasheet PMG2005-T20E 1 October 15, 2020 English
Quick Start Guide PMG2005-T20E 001 October 5, 2020 English

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