had to be manually adjusted, and unit identification numbers had to be established. ... (Sytek Inc., 1225 Charleston Road, Mountain View, CA 94043, 415/966-7346.) ... The new product, the GS/3, provides Ethernet users with more flexibility and the ability to cut transmission costs. ... It uses Xeroxa#39;s Internetwork Datagram Protocol (layer 3) to route information packets between Ethernets at up to 350 packetsanbsp;...