Network
Equipment
Engineering Solutions for Wi-Fi Equipment & Routers
Network equipment RFQs now ask for more than throughput: reliable Wi-Fi, TSN and 5G-grade timing, and security readiness for CRA and FIPS 140-3. Few vendors have all of this in-house, and splitting it across contractors slows every release.
Promwad designs routers, switches, and Wi-Fi equipment with one engineering team across hardware, firmware, and network software. We build PTP/SyncE timing, secure boot, signed updates, and FIPS 140-3-validated crypto for your platform.
What We Do
Since 2004, our team has specialized in advanced telecom engineering solutions, commercial Wi-Fi equipment, and rugged applications with high-speed interfaces, multi-layer PCBs, and proper thermal and signal integrity modeling.
We design for our clients:
- Network routers
- Network switches
- Media converters
- Low-power mini servers, thin clients
- Analog-to-digital PBX & VoIP routers
- Network-attached storage (NAS) devices
- Equipment for wireless access points (WLAN)
- Baseboard management controllers (BMC)
- Multi-purpose network devices for smart home and office, digital TV, telephony, Internet, etc.
- White box hardware
- Custom CWMP client applications (TR-069)
Network Synchronization: Bridging Eras of Timing
Timing has become a spec requirement in almost every switch and router RFQ:
- TSN mandates IEEE 802.1AS.
- Utility and railway operators migrating off SONET/SDH demand SyncE and boundary clocks across the whole chain.
- Private 5G asks for sub-microsecond T-BC Class D.
- Plus, your customers still need backward compatibility with the legacy timing gear already in the field.
Most network equipment vendors don't carry deep ITU-T timing expertise in-house and hiring a full synchronization team to win a single tender rarely makes sense. That's the gap Promwad closes.
We embed comprehensive PTP, SyncE, and legacy synchronization directly into your hardware as a design partner, taking into account your platform and architecture.
Explore our solutions:
Network Device Security: CRA & FIPS 140-3 Readiness
Security is another standard line in switch and router RFQs:
Most network equipment vendors run these as separate projects with separate contractors. Promwad treats them as one engineering task on your existing platform.
Explore our solutions:
How We Create Business Value: Our Case Studies
7-in-1 modem router
We have designed and prepared for mass production an advanced VoIP modem router that provides all types of office communications (7 devices in 1).
Our engineers designed an enclosure, hardware, low-level software, and Linux-based middleware, as well as stands for functional testing at the production site. The new business Wi-Fi solution included the functionality of seven devices in one:
- telephony with DECT base station, Asterisk-based VoIP gateway, and office PBX;
- Internet and local network via Ethernet, xDSL, Wi-Fi, 3G, WiMax;
- connection with peripheral devices and operation of network-attached storage (NAS).
Mobile router with LTE/3G/GSM
Commissioned by our client, we designed a router solution for stable internet access with the simultaneous operation of three SIM cards from different operators: up to 300 Mbit/s. Features:
- 2G/3G/LTE modem with 3 SIM cards connected via Ethernet or Wi-Fi
- Freescale i.MX6Solo/6DualLite CPU, ARM Cortex-A9
- Internal battery + external power source
Our Technology Map
L2, L2+ and L3:
- Port & PHY control: port speed, duplex mode, flow control, link control, statistics, MIB counters, Hotplug SFP detection; PoE / PoE+ with LLDP
- Switching & VLAN: MAC address learning; VLAN, private VLANs, port isolation, MAC-based VLAN, protocol-based VLAN, VLAN trunking; GVRP, MVRP
- Redundancy & resilience: STP / RSTP / MSTP, loop detection; link aggregation (LACP); ring protection G.8031, G.8032 v1/v2
- QoS & traffic management: traffic classification, port priority, VCAP (ACL) policers, port egress shaping, DiffServ (RFC 2474), hierarchical QoS (H-QoS)
- Multicast: IGMP v2/v3 snooping, MLD v1/v2 snooping, MVR
- Monitoring & OAM: port and flow mirroring; OAM Y.1731; SNMP and MIBs; local and remote management
- Security & access control: 802.1X, RADIUS, TACACS+, MAC-based authentication; secure management plane (SSH, HTTPS, SNMPv3), secure-by-default configuration
- Device security & compliance readiness: secure boot and hardware root of trust (TPM, secure elements), signed OTA with anti-rollback, FIPS 140-3-validated crypto module integration, SBOM (SPDX/CycloneDX) with CVE tracking; engineering aligned with CRA, IEC 62443-4-2, and NIST SP 800-193
- Network services: DHCP snooping, DHCP option 82 relay, UPnP
- Network synchronization & timing: IEEE 1588v2 PTP (G.8265.1, G.8275.1, G.8275.2, IEC 62439-3, IEEE 802.1AS/gPTP), Synchronous Ethernet (SyncE G.8262 / eEEC G.8262.1), Telecom Boundary Clock T-BC Class A–D (G.8273.2), NTPv4; peer-to-peer / end-to-end / boundary / transparent clock; legacy SONET/SDH (G.813) and PDH (G.812) interworking
Interfaces
- Ethernet 1G/2.5G/10G/40G/100G
- Wi-Fi IEEE802.11a/b/g/n/ac/ad
- Bluetooth classic and BLE
- DECT
- ADSL, SHDSL
- RapidIO
- G.hn
Network technologies
- Fast-Path network processing
- Hardware accelerated NAT
- Linux DSA, distributed switch architecture
- VoIP and telephony SLIC interfacing, DECT
- Ethernet packet processing
- Remote management
- Time-Sensitive Networking (TSN)
Network Protocols
Physical
layer
- Ethernet 1G/2.5G/10G/40G/100G
- Wi-Fi 802.11b/g/n/ac/ad
- ADSL
- GPRS/3G
- USB
- PCI Express
- Bluetooth
- RS-485
- CAN
- PSTN (POTS)
- DECT
- PON
Channel
layer
- Ethernet II
- VLAN
- Q-in-Q
- STP, RSTP, MSTP
- ARP
- PPPoE
- PPTP
- HDSL
- HCI
- Modbus
Network & transport
layer
- TCP/IP (IPv4/IPv6)
- UDP
- ICMP
- IGMP
- RTP/RTCP
- TLS: OpenSSL, MbedTLS
- VRRP
- RFCOMM, OBEX, ATT
- CANopen
- T.38 (UDPTL)
Application layer
- HTTP/HTTPS
- FTP
- SMB/CIFS
- TFTP
- SIP
- SOAP
- SNMP
- SSH
- TELNET
- DHCP
- DNS
- NTP
- PTP (IEEE 1588v2)
- NFS
- TR-069
Our Portfolio in Telecom
