Do not get excited, on a full gigabit network port 10G-EPON Optical modem, the price is not expensive, $ 15, take apart to see what configuration.
Optical modem most put in the weak box, it does not care about its appearance, as long as it is small, but this appearance is not small, the antenna can be folded up does not take up space.
For the interfaces, there are 3 LAN ports, 1 ITV port, all at Gigabit rate; there is also a USB 2.0 and phone line port.
Fuselage bottom label.
Disassembling the bottom case.
CPU above the sticky piece of thin aluminum, a moment to see what CPU.
Remove the motherboard.
Use a hair dryer to blow a while the black aluminum heat sink, easy to take off:
This heatsink uses a heat sink spacer to adhere to the CPU to enhance thermal conductivity.
The CPU model is ZX279131 (ZTE Microelectronics), A9 architecture, dual-core 1.2GHz, because I could not see a switch chip, so I concluded that it integrated 4 gigabit PHY. integrated 10G/2.5G/1G optical MAC.
The overall parameters are very similar to SD5182H.
The left side of the CPU has the memory chip, model number H5TQ4G63EFR-RDC, 512MB capacity, Hynix DDR3 memory particles.
The other side of the motherboard is the wireless circuit, there are two wireless chips, respectively MT7613AEN and MT7603EN. the former is a 5G chip, 2x2mimo 866mbps, the latter is a 2.4G chip, 2x2mimo 300Mbps, this is a wireless solution for AC1200, are no external amplifier chip.
There is a capacitor as big as a cow near the DC input circuit, 16V/3300 microfares.
There is one chip in the power supply circuit: Si32192.
Applications of Si32192.
VoIP Gateways and Routers
Optical Network Terminals/Units (ONT/U)
Analog Terminal Adapters (ATA)
Wireless Fixed Terminals (WFT)
Wireless Local Loop (WLL)
Next, open the only shield:
A piece of thermally conductive silicone gasket is located under the shield to help dissipate heat from the fiber optic front end.
The lower chip, model GN28L95, is a PHY chip.
Integrated 10 Gbps limiting post amplifier and 2.5 Gbps burst mode laser driver for 10 Gbps PON applications
The parameters of GN28L95 are as follows.
Patented and proven automatic laser calibration is compatible with a wide range of industry lasers
Programmable 2.5 gigabit Tx with eye-shaping to optimize laser performance
Programmable 10 gigabit Rx with equalization and pre-emphasis to optimize APD performance
Integrated APD controller with fast fault protection
10G EPON & XGPON1 FTTh ONU/ONT BoB designs
Next Generation 10G PON ONU/ONT
The TTL pins are defined as shown below, with a baud rate of 115200 and a voltage of 3.3V.
Turn over and look at the back of the motherboard, there is a flash memory chip, model PN26G01AWSIUG, capacity 128MB. SPI NAND Flash.
So far, all the demolition is finished.
Because it is WiFi 5 wireless, this chip regardless of whether there is an external amplifier, the signal will not be strong, do not expect it to have a large coverage capacity, I will not test the signal.
This Optical modem can not just buy to change on, to consider whether the server room in your area to support it.