The Huawei S1720 28GFR 4P AC switch is a high performance, fixed configuration managed switch designed for enterprise and service provider networks. Here's a breakdown of the key parameters mentioned in the description:

1. 24 10/100/1000BASE T ports: This indicates that the switch has 24 Ethernet ports that support three different speeds:

  10BASE T: 10 Mbps (Megabits per second) Ethernet using twisted pair copper cabling.

  100BASE T: 100 Mbps Fast Ethernet using twisted pair copper cabling.

  1000BASE T: 1 Gbps (Gigabit per second) Ethernet using twisted pair copper cabling.

2. 4 GE SFP ports: GE stands for Gigabit Ethernet, and SFP stands for Small Form factor Pluggable. This means the switch has 4 ports that can accept SFP (Small Form factor Pluggable) modules, which are used to convert the electrical signals on the switch to optical signals for fiber optic communication. These ports support Gigabit Ethernet speeds.

3. Fixed AC power: This indicates that the switch is designed to be powered by an alternating current (AC) power source. The term "fixed" suggests that the power supply is built into the device and cannot be easily replaced or upgraded. This is in contrast to some switches that might have removable power supplies or support both AC and DC power options.

4. AC (Access Code): This is not directly mentioned in the parameter list, but it's worth noting that "AC" could also refer to an Access Code, which is a security feature used to restrict access to the switch's management interface. However, in the context of the switch's description, "AC" likely refers to the power source type.

The Huawei S1720 28GFR 4P AC switch is part of Huawei's S1720 series, which is designed for small to medium sized enterprise networks and offers advanced features such as Quality of Service (QoS), security, and energy saving capabilities. The switch's port configuration allows for a mix of high speed copper connections and fiber optic connections, making it versatile for various network setups.

Huawei S1700-52GR-4X-AC switch supports 48 10/100/1000BASE-T ports, 4 10GE SFP+ ports, fixed AC power：