Here is an old type KVM switch, PS/2 & VGA interface.
Details Label
Top removed from the main body, the cables coming in from the bottom connect to the VGA, keyboard & mouse ports on the slave computers, the connectors at the top connect to the single monitor, keyboard & mouse.
PCB removed from the body. This is driven by a PIC16C57C-04 microcontroller.
The pair of LEDs indicate which computer is using the peripherals at any one time.
Here is an old Belkin Wireless G network card. This is a PCMCIA version.
Here is the bottom of the device, with all the details.
Plastic antenna cover removed, showing the pair of 2.4GHz etched antennae. There is a pair of LEDs on the upper left of the PCB showing activity & link status.
Overall view of the PCB, antennae on the left, RF chipset in centre, WiFi controller IC on right, and PCMCIA socket on far right. Can below wireless controller is a quartz crystal for the clock.
Closeup of the chipset, a Ralink RT2560F wireless controller on the right & a RT2525L transceiver on the left.
This is an old USB 1.1 hub that was recently retired from service on some servers. Top of the unit visible here.
Bottom label shows that this is a model F5U021 hub, a rather old unit.
PCB is here removed from the casing, Indicator LEDs along the bottom edge of the board, power supply is on the left. Connectors on the top edge are external power, USB host, & the 4 USB outputs. Yellow devices are polyswitch fuses for the 500mA at 5v each port must supply.
This is the USB Hub Controller IC, which is a Texas Instruments TUSB2046B device. Power filter capacitors next to the USB ports are visible here also, along with 2 of the polyswitches.
The power supply section of the unit, which supplies regulated 5v to the ports, while supplying regulated 3.3v to the hub controller IC. Large TO-220 IC is the 5v regulator. Smaller IC just under the power selector switch is the 3.3v regulator for the hub IC. The switch selects between Host powered or external power for the hub.
