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The 3985 Router’s ruggedized design enables network operators to accelerate permitting, avoid deployment delays, and reduce costly site infrastructure. The 3985 is engineered to accommodate direct outdoor deployment and avoid the attracted costs of street cabinets. Mountable on a pole, strand, wall, or H-frame, the flexibility of the 3985 ensures it can be deployed where it is needed. And redundant AC, DC, and cable AC field-replaceable power modules ensure high reliability.


No. 1

Environmentally hardened and physically secure enclosure

No. 2

Flexible mounting, including poles, strands, and wall-mount options

No. 3

6 x 1/10/25GbE XGS-PON ports

No. 4

IP routing, SR-MPLS, Carrier Ethernet, and SRv6 ready

No. 5

Routing and switching OAM scaled to deliver 25GbE services with guaranteed SLA differentiation

No. 6

SZTP for rapid, secure, and error-free turn-up of services


  • + Interfaces
    • Ethernet Ports

      • 6 x 1/10/25G SFP28


      • 1 x USB-C Off-switch memory
      • 1 x USB-C Console
      • 1 x RJ45 Time-of-Day (ToD)
      • 1 x SMB Phase input (1 pps in/out)
      • 1 x RJ45 Management (MGMT)
  • + Ethernet
    • IEEE 802.1ad Provider Bridging (Q-in-Q) VLAN full S-VLAN range
    • IEEE 802.1D MAC Bridges
    • IEEE 802.1Q VLANs - Including .1p Priority
    • IEEE 802.3 Ethernet
    • IEEE 802.3ab 1000Base-T via copper SFP
    • IEEE 802.3by-2016 25Gb/s
    • IEEE 802.3z Gigabit Ethernet
    • Layer 2 Control Frame Tunneling
    • Link Aggregation (LAG: Active/Active; Active/Standby
    • VLAN tunneling (Q-in-Q) for Transparent LAN Services (TLS)
  • + Carrier Ethernet OAM
    • EVC Ping (IPv4)
    • IEEE 802.1ab Link Layer Discovery Protocol (LLDP)
    • IEEE 802.1ag Connectivity Fault Management (CFM)
    • IEEE 802.3ah EFM Link-fault OAM
    • ITU-T Y.1731 Performance Monitoring
    • RFC 2544 Performance Benchmarking Test Generation and Reflection
    • ITU-T Y.1564-compliant architecture
    • RFC 5618 TWAMP Responder and Receiver TWAMP Sender
    • Dying Gasp with Syslog and SNMP Traps
  • + Synchronization
    • Timing Interfaces
      Synchronization Timing Interfaces
      • ITU-T G.703 Frequency in or out (2.048MHz, and 10MHz)
      • ITU-T G.703 1pps and ToD in or out
    • Integrated GNSS receiver
    • ITU-T G.8262/G.8264 EED option1 and option2
    • ITU-T G.8275.1 full timing support T-GM, T-BC and T-TSC
    • G.8275.2 clock, Class C
    • IEEE 1588v2 PTP
  • + Networking Protocols
    • ISO10598 IS-IS intra-domain routing protocol
    • OSPF Segment Routing extension
    • OSPF TI-LFA Topology Independent Fast Reroute using Segment Routing
    • RFC1195 Use of OSI Is-Is for Routing in TCP/IP and Dual Environments
    • RFC1997 BGP Community Attribute
    • RFC2328 OSPF Version 2
    • BGP Prefix Independent Convergence
    • EVPN FXC draft-ietf-bess-evpn-vpws-fxc-03.txt
    • RFC2698 A Two Rate Three Color Marker
    • RFC2865 Remote Authentication Dial in User Service (RADIUS)
    • RFC3031 Multiprotocol Label Switching Architecture
    • RFC3032 MPLS label stack encoding
    • RFC3107 Support BGP carry Label for MPLS
    • RFC4271 A Border Gateway Protocol 4 (BGP-4)
    • RFC4360 BGP Extended Communities Attribute
    • RFC4364 BGP/MPLS IP Virtual Private Networks (VPNs)
    • RFC4456 BGP Route Reflection: An Alternative to Full Mesh Internal BGP (IBGP)
    • RFC4632 Classless Inter-domain Routing (CIDR): The Internet Address Assignment and Aggregation Plan
    • RFC4760 Multiprotocol Extensions for BGP-4
    • RFC4762 Virtual Private LAN Service (VPLS) Using Label Distribution Protocol (LDP) Signaling (HVPLS)
    • RFC5004 Avoid BGP Best Path Transitions from One External to Another
    • RFC5036 LDP Specification
    • RFC5037 Experience with the LDP protocol
    • RFC5301 Dynamic Hostname Exchange Mechanism for IS-IS
    • RFC5302 Domain-Wide Prefix Distribution with Two-Level IS-IS
    • RFC5303 Three-Way Handshake for IS-IS Point-to-Point Adjacencies
    • RFC5309 Point-to-Point Operation over LAN in Link State Routing Protocols
    • RFC5396 Textual Representation of Autonomous System (AS) Numbers
    • RFC5398 Autonomous System (AS) Number Reservation for Documentation Use
    • RFC5492 Capabilities Advertise with BGP-4
    • RFC5561 LDP Capabilities
    • RFC5668 4-Octet AS Specific BGP Extended Community
    • RFC6241 Network Configuration Protocol (NETCONF)
    • RFC6310 Pseudowire (PW) Operations, Administration, and Maintenance (OAM) Message Mapping
    • RFC6793 BGP Support for Four-Octet Autonomous System (AS) Number Space
    • RFC7737 Label Switched Route (LSP) Ping and Traceroute Reply Mode Simplification
    • RFC7911 Advertisement of Multiple Paths in BGP
    • RFC8214 Virtual Private Wire Service Support in Ethernet VPN
  • +Network Management
    • Alarm Management and Monitoring Configuration
    • Event and Alarm Notification/Generation Comprehensive Management
    • Via CLI Management
    • Via Netconf/YANG Models
    • gRPC-based Streaming telemetry
    • IPv4 and IPv6 Management Support
    • IPv4 Management ACL (in-band)
    • IPv6 Management ACL (in-band)
    • RFC 2131 DHCP Client
    • RFC 3046 DHCP Relay
    • RFC 5905 NTP Client
    • Secure File Transfer Protocol (SFTP)
    • Secure Shell (SSHv2)
    • RFC 8572 Secure Zero-Touch Provisioning (SZTP)
    • Software upgrade via FTP, SFTP
    • Syslog Accounting
    • TACACS + AAA
    • Web GUI
  • + Physical Characteristics
    • Dimensions

      • 15.2" (W) x 8.11" (D) x 4.4" (H)
      • 389mm (W) x 206mm (D) x 112mm (H)


      • 21.2 lbs; 9.6 Kg

      Power Requirements

      • DC input: -48V DC
      • AC input: 100-240V AC, 50/60Hz
      • 3985-900/901 60w (nominal)
      • 3985-900/901 90w (Maximum)
  • + Standards Compliance (EMC)
    • AS/NZS CISPR 32 Class B
    • CISPR 32 Class B
    • CISPR 35
    • CNS 13438
    • EN 301 489-1
    • EN 301 489-19
    • EN 303 413
    • EN 55032 Class B
    • EN 55035
    • FCC Part 15 Subpart B, Class B
    • FCC Part 15 Subpart B, Class B
    • GR-1089 Core, Level 3
    • ICES 003 Class B
    • Industry Canada ICES-003 Class B
    • KS C 9832; KS C 9835; KS X 3124
    • VCCI CISPR 32 Class B
  • + Standards Compliance (Safety)
    • CAN/CSA C22.2 No. 62368-1
    • GR-1089 Issue 7
    • IEC 60825-1
    • IEC 62368-1
    • IEC/EN 60950-1
    • UL 62368-1
  • +Power
    • ETSI EN 300 132-2
    • ETSI EN 300 132-3
  • +Environmental
    • GR-63 Core, Level 3
    • GR-3108 Class 4
    • RoHS2 Directive (2011/65/EU)
    • WEEE Directive (2002/96/EC)
  • +Temperature
    • Operating -40°F to +149°F (-40°F to +65°C); with solar load -40°F to +115°F (-40°C to +46°C)
    • Storage -40°F to +158°F (-40°C to +70°C)
    • Humidity 5% to 100%

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