
The USB specification allows a distance of 5 m between the PC and the USB devices. A further 5 m of cable can be added by using a USB hub. In the construction of machines and plants, larger distances must be bridged without having to insert a USB hub every 5 m. The CU8800 USB Extender sends the USB signal via a CAT 5 cable that can be up to 50 m long to the CU8850 USB Extended receiver, which converts the signal back to USB. Both USB Extender boxes are designed for DIN rail mounting. The CU8800 transmitter is powered by the PC. The CU8850 receiver has an integrated 24 V DC power supply unit. Data rates of up to 12 Mbit/s can be transmitted.

| Technical data | CU8800 | USB Extender Tx | CU8850 | USB Extender Rx |
|---|---|---|
| USB Extended transmitter box | USB Extended receiver box | |
| 1 USB input with USB B socket to be connected to the PC in maximum 1 m distance | 1 USB Extended input with RJ 45 socket for up to 50 m CAT 5 cable | |
| 1 USB Extended output with RJ 45 socket for up to 50 m CAT 5 cable | 1 USB output with USB A socket to be connected to an USB device in maximum 5 m distance | |
| – | quick error analysing with diagnostic LEDs | |
| plastic housing for DIN rail installation | ||
| USB transfer rate up to 12 Mbit/s for USB 1.1, downwards compatible to USB 1.0 | ||
| protection class IP 20 | ||
| operating temperature 0…55 °C | ||
| dimensions (W x H x D) 34 x 98 x 77 mm (1.3" x 3.9" x 3") | ||
| power supply via USB | 24 V DC power supply | |