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Description
Positron MRX Outdoor 8-Port Twisted Pair MIMO G.hn Access MultiplexerFiber 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
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.
- 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:
(8) 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 200 MHz. 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 - RADIUS/ TACACS+:
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
Product Includes
(1) GAM-8-MRX Multiplexer
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Great watch. New model lacks holographic diffraction membrane on the display.
Color: Black
It's a really cool design. It's lightweight, thin, easy to read, and feels well made. I do not find the buttons hard to press. Setting the time is easy. In the showcase video of this watch it clearly has a holographic diffraction membrane on the display, which is what gives it the green reflection as the watch spins around, but that is the older model with the "Atlantis 100" writing on the 12 o'clock position. This new model does not have the holographic diffraction membrane, and that is a bit of a let down for me personally. It was a design feature that really set the watch apart from most other digital watches. It's something to keep in mind if you owned the older model and expect the new one to be exactly the same.
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Reviewed in the United States on September 24, 2025
★★★★★ 5
$30 well spent
Color: Black, Color: Black
I haven't worn a digital watch in years. I have a Seiko automatic I wear to work events or anything where I feel like having a "dress" watch (it's not really a dress watch, but just a nice watch) but otherwise, basically rely on my cell phone for telling time and setting alarms.
Recently, I've suddenly become interested in digital watches again. I remember how cool the Indiglo feature was on watches as a kid in the early 90s and started researching and comparing. I ended up purchasing one of the $99 Casio G-Shock watches with the solar and atomic clock radio features, and while it's definitely very cool, the wide square shape of the watch face and the curved resin wristband isn't comfortable for me to wear all day. So then I saw this one and figured for $30, it was worth giving it a shot. And I'm glad I did.
First of all, the watch is very comfortable to wear all day -- which really should be the most important thing. I don't have super big wrists but also have had issues in the past with wrist sprains and mild tendinitis from typing all day at work and then painting and repairing my home on the evenings and weekends. The small, round watch face is very comfortable and sits well on my wrist. The band is admittedly very cheap and flimsy feeling, but again, $30 watch.
I don't particularly care for stopwatch, timer, or alarm features from a digital wrist watch, but the Indiglo is so cool. Casio has stopped using electroluminescence in its watches and newer G-Shocks and similar Casios have a small LED that looks like the crappy old lights in cheaper digital watches from the 80s and 90s. It's disappointing to spend $100 on a new G-Shock to find out that the EL feature has been retired. However, this $30 Timex that feels more comfortable, fits better, and seems to be just as durable, has it.
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Reviewed in the United States on October 23, 2021
★★★★★ 4
Very good looking accurate watch but,
Color: Black
As others have said buttons very hard to operate. I'm not sure if it's by design or if they released an abnormally tough run, but they do require intent and strength to push. On the bright side, you'll never (and I repeat NEVER) accidentally press the button and activate something. You have to try hard to push them intentionally, I don't think it's even possible to accidentally press one. The look and feel of the watch are great though and I think the band is actually better quality than most Casio bands. Overall the price increase over similar casios gets you - better light, nice slim profile, and a better band, as well as buttons that won't accidentally push (because they're so tough to lol)
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Reviewed in the United States on May 13, 2024
★★★★★ 1
Defective watch - after 1.5 months of use, time automatically reset every day
Color: Teal/Brown
I'd only had the watch for about 1.5 months before the time started to automatically reset without any apparent reason. I would set it to the correct time, then before the day was done, I would look down and see that the watch time was drastically incorrect. I've seen at least one other review on Amazon describing this same problem with the Atlantis.
Other than that, as other reviewers have mentioned, the buttons are a bit hard to press but that isn't a dealbreaker in my opinion (you get used to it). If you like the way the watch looks, and want a simple, smaller, lightweight digital watch, the Atlantis is adequate, especially at this price point - assuming it's not defective like mine.
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Reviewed in the United States on January 24, 2024
★★★★★ 3
It’s an “OK” watch.
Color: Black
I just received this watch. The watch fits well and is comfortable, light weight and is thinner than others I have had, which I actually like. There is no manual and trying to find one on line is a tall order. I just fiddled around with it to figure it out. Still working on some of the features. It apparently has two time settings which is good if you travel to other time zones without having to reset your time. Just hit the button. Speaking of the buttons, they are pretty tough to push. The display is so-so; some may have difficulty reading it although the numbers for the time are larger. It’s a decent watch but being worth $42 remains to be seen.
I was a bit unhappy to receive the watch in an Amazon paper bag envelope. The box was crushed but the watch was in tact. It really should have been shipped in a box.
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Reviewed in the United States on March 12, 2022
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