Positron GAM-4-MRX – OUTDOOR G.hn Access Multiplexer (GAM) with 4 MIMO ports and 1 x 10Gbps SFP+ port. Reverse Power Feed

SKU: 4413 Category:



“Fiber to the Home” is far from the only and most efficient technology to deliver Gigabit Internet access to subscribers. Retrofitting an existing (brownfield) Multi-Dwelling Unit (MDU) with fiber is complex, highly disruptive and expensive. With the G.hn Aggregation Multiplexer (GAM), Positron Access addresses the key challenge of delivering Gigabit Internet access to subscribers in MDUs as well as dense Single Family Unit (SFU) homes by leveraging the existing telephone or coaxial infrastructure to deliver near symmetrical Gigabit services at a fraction of the cost of alternatives.

The GAM-4-MRX has four (4) MIMO ports and support Reverse Power Feed (RPF) from G1001-MR devices, one per G.hn port. 

Additional information

Weight 10.00 lbs
Dimensions 18.00 × 12.00 × 10.00 in


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

  • Reverse Power Feed: Complies with ETSI TS 101 548 v.2.2.1 in SR3 mode
  • Power Source: Reverse Power Fed from G1001-MR or G1001-CR
  • Alternate Power Source: power connector inside the GAM-4-CRX to temporarily power the GAM device in the absence of subscribers to facilitate the initial provisioning of the GAM and to validate the uplink connection. Can also be used to power the GAM for normal operation
  • Environmental: IP-67 rated
  • Operating Temperature: -40°C to +65°C
  • Storage Temperature: -40°C to +70°C
  • Operating Humidity: Up to 95% relative, non-condensing
  • Certifications: CE Mark, FCC Part 15 Class A
  • Ports:
    (4) MIMO (MIMO-Copper)
    (1) SFP+: offers versatile support for Active Ethernet and for GPON, EPON, 10GEPON, NGPON2 and XGS-PON via external ONU/ONT devices
  • Also compatible with 3rd party PON SFP ONT modules
  • G.hn Standards:
    G.hn Wave-2 Domain Master on all GAM ports
    Based on GigaWire Alliance specification and fully compliant with the following ITU-T standards:
    G.9960 Amendment 2 – System Architecture and PHY Layer
    G.9961 Data Link Layer
    G.9962 Management
    G.9964 PSD
  • Ease of Deployment: Support G.hn operation over telephone wiring (1 or 2 copper pairs) and coax cabling (F-type connector)
  • Ease of Operation: Supports firmware and configuration management of G.hn end-point devices
  • Encryption: AES-128 encryption with individual keys for each end-node. The Positron GAM Master Node is also acting as the G.hn Security Controller
  • Modulation and Frequency Band:
    Supports OFDM 200MHz. Telephone wiring supports 1 pair (Singe Input Single Output – SISO) and 2 pairs (Multiple Input Multiple Output – MIMO) per port
    Radio Band Notching function allows cohabitation with legacy analog cable TV channels on coax cabling and concurrent use with POTS and DSL on telephone pairs
  • Bandwidth Management with Dynamic Time Allocation: Up to 1.7 Gbps with Dynamic Time Allocation to optimize throughput based on nature of traffic flows with TDD Multiplexing for programmable upstream / downstream ratio
  • Vectoring (Telephone Wiring): Support for VectorBoost vectoring for FEXT (Far-End Crosstalk) mitigation and improved performance over Telephone wiring
  • Mitigation of Near-end Crosstalk: Near End Crosstalk (NEXT) Mitigation and support for Neighbor Domain Interface Mitigation (NDIM)
  • PSD: Programmable PSD mask for coexistence with xDSL / radio and Far End Crosstalk (FEXT) mitigation via VectorBoost vectoring
  • Reliability and Resiliency: State of the art LDPC Forward Error Correction (FEC)
  • Layer 3 Support:
    Static routing of IPv4 unicast traffic
    Static routing of IPv6 unicast traffic
  • Secure Shell (SSH) Protocol: SSH secures Telnet traffic in and out of the switch, SSH v1, v2 are supported
  • Secure Sockets Layer (SSL): SSL encrypts the HTTP traffic, allowing advanced secure access to the browser-based management GUI in the switch
  • IEEE 802.1X:
    IEEE 802.1X: RADIUS authentication, authorization and accounting, MD5 hash, single / multiple host mode and single / multiple sessions
    Supports IGMP-RADIUS based 802.1X Dynamic VLAN assignment
    Supports RADIUS and TACACS+ authentication
    G.hn Aggregation Multiplexer acting as a RADIUS client
  • Layer 2 Isolation Private VLAN Edge (PVE): PVE (also known as protected ports) provides L2 isolation between clients in the same VLAN, supports multiple uplinks
  • IP Source Guard: Prevents datagram with spoofed addresses from being in the network
  • Storm Control: Prevents traffic on a LAN from being disrupted by a broadcast, multicast, or unicast storm on a port
  • ACLs:
    Supports up to 256 entries
    Drop or rate limitation based on source and destination MAC, VLAN ID or IP address, protocol, port, differentiated services code point (DSCP) / IP precedence, TCP / UDP source and destination ports, 802.1p priority, Ethernet type, Internet Control Message
  • Protocol (ICMP) packets, IGMP packets, TCP flag
  • Hardware Priority Queue: Support 8 hardware queues per port
  • Scheduling:
    Strict priority and Weighted Round-Robin (WRR)
    Queue assignment based on DSCP and class of service (802.1p/ CoS)
  • Classification: Port based; 802.1p VLAN priority based; IPv4/IPv6 precedence/ type of service (ToS) / DSCP based; Differentiated Services (DiffServ); classification and re-marking ACLs, trusted QoS
  • Rate Limiting: Ingress policer; egress shaping and rate control; per VLAN, per port and flow based
  • IPv6 Support: Web/ SSL, Telnet/ SSH, ping, Simple Network Time Protocol (SNTP), Trivial File Transfer Protocol (TFTP), SNMP, RADIUS, Syslog, DNS Client, protocol based VLANs


  • Web GUI Interface:
    Built-in configuration utility for browser-based device configuration (HTTP/ HTTPs).
    Supports configuration, system dashboard, maintenance and monitoring
  • Firmware Upgrade:
    Web browser upgrade (HTTP/ HTTPs) and FTP
    Secure upgrade through console port
  • Dual Firmware Image: Dual image and firmware partition provides independent primary and secondary OS files for backup while upgrading. Each firmware image has its corresponding firmware partition
  • SNMP: SNMP version1, 2c and 3 with support for traps and SNMP version 3 user-based security model (USM)
  • Remote Monitoring (RMON): Embedded RMON software agent supports RMON groups 1, 2, 3, 9 (history, statistics, alarms and events) for enhanced traffic management, monitoring and analysis
  • IPv4 and IPv6 Dual Stack: Coexistence of both protocol stacks to support a seamless migration
  • Port Mirroring: Traffic on a port can be mirrored to another port for Legal Interception (CALEA) or analysis with a network analyzer or RMON probe. Up to N-1 (N is Switch’s Ports) ports can be mirrored to single destination port. A single session is supported
  • Network Time Protocol: Network Time Protocol (NTP) for clock synchronization over packet switched networks
  • Discovery: Link Layer Discovery Protocol (LLDP) (IEEE 802.1ab) with LLDP-MED extensions

Ordering Information


Model # Description Availability
GAM-4-MRX OUTDOOR G.hn Access Multiplexer (GAM) with 4 MIMO ports and 1 x 10Gbps SFP+ port. Reverse Power Feed General Availability