AltoPlex D621 Distribution Radio
The D621 is a 60 GHz distribution radio with integrated 128-element beamforming antenna that provides best-in-class link resiliency and full capacity range in a very compact form factor.
It supports PtMP and can be configured as either a distribution or client unit for maximum flexibility.
The D621 is carrier-grade, manufactured in the USA and features IP67 weather-sealing for reliable operation outdoors and in harsh environments.

High Capacity
Up to 3.8 Gbps aggregate Layer 2 throughput
Low Latency
Sub 1 ms latency
Adaptive Beamforming
128-element, phased array, beamforming antenna with 90° azimuth and 40° elevation scanning for maximum link resiliency and 3.8 Gbps range up to 400m (1,312 ft)
2.5 Gigabit Ethernet
Built-in 2.5 GbE port for maximum throughput
Wi-Fi Management and GPS Location
Connect locally using the Wi-Fi network interface to manage the radio directly. Easily locate the radio using the integrated GPS receiver.
Dense Network Ready
60 GHz spectrum with beamforming and TDMA for extremely reliable dense networks
Security
AES-128 encryption with automatic secure key distribution
Carrier-Grade
IP67 rated enclosure and built in USA for reliable, long-term operation in the field
Simple and Rapid Installation
Altowav’s antennas auto-align for easy installs, and our Open API and native layer 2 architecture enable easy integration into operators’ existing networks
Specifications
System
| Radio Technology | 802.11ay-based chipset with Altowav TDMA air interface |
| Configuration | Point-to-Point and Point-to-Multipoint
Distribution or Client |
| Topologies | PtP, PtMP, multi-hop, ring |
| Frequencies | 57 to 66 GHz |
| Channel Bandwidth | 2.16 GHz |
| Channel Access | TDMA/TDD with reserved per-client time slots |
| Network Synchronization | GPS-disciplined TDD timing across sectors and sites; clients synchronized over the air |
| Modulation and Coding Schemes | 12 levels, adaptive—MCS-1 (BPSK) to MCS-12 (16QAM) |
| Antenna | Integrated 128-element beamforming antenna with wide scanning range: 90° azimuth, 40° elevation |
| Maximum EIRP | 40 dBm |
| Range (D621 to D621) | Up to 400m (1,312 ft) at 3.8 Gbps |
| Capacity | Up to 3.8 Gbps aggregate Layer 2 throughput on a single 2.16 GHz channel |
| Ethernet Frame Type | Transparent bridging of all Ethernet types including VLAN and VLAN stacking |
| Latency | < 1 ms |
| L2 Switching | Complete Layer 2 switching, including VLAN support |
| Spanning Tree | RSTP (IEEE 802.1w) for ring and redundant-path protection |
| Security | AES-128 |
| PtMP Remote Support | Up to 15 client units +1 distribution link |
| Wi-Fi Management Interface | 2.4 GHz IEEE 802.11b/g/n wireless management interface (not a data access point) |
| GPS | Integrated GPS receiver for timing and to locate individual radios |
Connectivity
| Ethernet | 1 x 2.5 GbE RJ45 |
| Voltage | 56 VDC |
| PoE Input | 802.3af |
| Power Consumption | <13 W maximum |
Management
| Management | Web GUI, CLI, and REST API |
Mechanical
| Dimensions (H x W x D) |
150 x 95 x 35 mm (5.9″ x 3.7″ x 1.4″) |
| Weight | 400 g (14 oz) |
| Operating Temperature | -30° to +55°C (-22° to +131°F) |
| Casing | Die-cast powder-coated aluminum chassis with PC-ABS radome |
| Ingress Protection | IP67 |
| Regulatory | FCC, ISED, CE |
| ESD | EN 61000-4-2 |
| EMC | EN 61000-4-3 |
| Radio | ETSI EN 303 722 V1.2.1, EN 300 328 V2.2.2, EN 303 413 V1.2.1 |
| Mounting | Integrated wall and pole mount supporting 12.7 mm (0.5 in) band clamps. Additional mounting accessories are available. |
Model Number
| AW3-D621-C-W | D621 60 GHz Network Distribution/High-Capacity Client Radio |
Client Model Numbers
| AW3-L170-C-W | L170 60 GHz Long Range PtP and PtMP Client Radio |
| AW3-C423-C-W | C423 60 GHz Extended Range 3-Port Client Radio |
| AW3-C420-C-PW | C420 60 GHz Extended Range Client Radio |
| AW3-C410-C-PW | C410 60 GHz Standard Range Client Radio |
Accessories
| AX-P-IN-AT-5G-US | Indoor 802.3at (30 W) 5 GbE PoE injector with 0.8m US power cord |
| AX-AW3-MT-WALL | Wall standoff bracket that enables azimuth adjustment |
| AX-AW3-EXT-MOUNT | Extended range pole mounting kit for AltoPlex radios, enabling up to +60/-45° elevation adjustment |
| AX-PSW-OD-4AT-4C25 | Outdoor 4 port PoE 2.5 GbE switch |