Main features of the product:

• Adopting the MT7981B solution, it features an ARM Cortex-A53 dual-core CPU with a clock speed of up to 1.3GHZ
• Equipped with an independent WIFI6 chip, MT7976CN, it boasts a speed of up to 3000Mbps
• Equipped with high-speed 256M DDR3 and paired with 128MB SPI NAND Flash
• Single LAN port, supports 10/100/1000M auto-sensing, and supports automatic crossover (Auto MDI/MDIX)
• Supports POE-PD power supply, compliant with IEEE 802.3at standard
• Support "one-click firmware update mode", where long pressing the reset button enters rescue firmware update mode
• It has a built-in M.2 standard interface that can be used to connect a 5G mobile communication module.
• It is equipped with one standard SIM card (large card) interface, supporting both SIM and USIM cards
• External high-gain WIFI antenna and 5G mobile communication antenna, providing wireless signal coverage in 360 degrees without dead zones
• The 5G module is connected to an external PHY network interface chip for communication with the routing SOC, ensuring faster and more stable 5G speeds

1.  Overview

CS-Z8105AX-M2-H is a 5G+WIFI6 home CPE router that accesses the Internet through 5G mobile communication dial-up or a 1000Mbps WAN port, and then shares the Internet network through wireless WiFi 6 and a 1000Mbps wired LAN. In addition, this product also uses a PHY network port chip to directly communicate with the 5G module, enhancing the communication rate between the 5G module and the router SOC, providing end users with a faster and more stable 5G network.

2. Standard

Relevant standards and specifications:

• USB3.0/USB2.0 bus standard
• SIM/USIM interface standard
• IEEE802.11n/g/b/a/ac/ax
• IEEE802.3/802.3u/802.ab
• PCI Express M.2 Specification Rev1.1
• 5G mobile communication standard

3.  Hardware

3.1 Introduction to hardware interfaces

3.2 Hardware Platform

3.3 Hardware Watchdog Function

This hardware product is designed with a hardware watchdog function. After being powered on, the hardware watchdog will automatically boot up and detect the heartbeat level output by the routing system, which changes once every second. If the routing system itself malfunctions (such as a crash), it will naturally be unable to output the heartbeat level. At this time, if the hardware watchdog fails to detect the heartbeat level within 120 seconds, it will automatically shut down for 15 seconds and then restart the entire system.

When the routing system is operating normally but the 5G module is experiencing dial-up issues, the routing system will control the power supply of the 5G module through GPIO, causing the module to automatically restart in order to fix the 5G dial-up issue.

4. Working Environment