New Products SC708NHB Port 10/100 Mbps ESD Protection Switching HUB The present product is designed as an industrial product, and it is static electricity switching HUB that enables setting to the place where setting had difficulty with general HUB. (The place where a lot of static electricity occurs, electric noises are loud, and so on.) A very high AC line noise tolerance and static electricity tolerance have been achieved in this product as compared to our earlier products. In the AC line noise tolerance examination, the product showed three times the tolerance compared with the product available in our company so far. Moreover, it showed about four times the tolerance in the static electricity impression examination on comparison. Main features 1. It possesses a tolerance of electrostatic 15 kV/ thunder serge 10 kV. 2. It is an automatic setting because it supports the Auto-Negotiation function in all of the eight ports as for the transmission speed (10/100 Mbps) and the transmission mode (Full/Half-Duplex). 3. As the flow control facility by IEEE802.3x (connected with Full-Duplex) and Back-Pressure (connected with Half-Duplex) is supported, the loss of the packet by the overflow of the buffer is cut. 4. Since the Auto-Medium Dependent Interface (MDI) function is supported, it is unnecessary to identify straight/cross cable. 5. Since the AC cable inlet is equipped with a cable holder, the AC cable is prevented from coming off. Table. Product Specification. SC708NHB Outlook Item Specifications Processiong type Store-and-forward Transmission type Carrier sense multiple access with collision detection(CSMA/CD) Number of ports 10/100base-TX 8ports Packet buffer memory 256 KB MAC address capacity 4000 Filtering Short packet Long packet Cyclic redundancy check (CRC) Error packet Input voltage AC100V (±10%) 50~60 Hz Power consumption About 8 W Operating temperature 0~50 °C Operating humidity 30~80 % (Non-condensing) Storage temperature -20~60 °C Storage humidity 20~80 % (Non-condensing) Weight 1.5 kg Dimensions W260.0¥D160.0¥H43.5 mm LED Power : Green Link/active : Green (for 10 Mbps) : Orange (for 100 Mbps) Full : Green Resist pressure AC1000 V/min (Plug to product) AC line noise +/-2000 V Pulse width 1 μ s ESD tolerance IEC61000-4-2 Level Special +/-15,000 V Contact discharge 180 times Tolerance of static electricity 500 pF Discharge resistance 0 Ω Discharge interval 1 time/sec EMC IEC61000-4-5 Level 2 [Information] SYSCOM Ltd. Sales Tel : +81 3 5812 5575 Fax : +81 3 5812 5576 E-mail : [email protected] 74