AIR802 - Aurora, IL
Manufacturer, Custom Manufacturer
Manufacturer of managed gigabit Ethernet switches. Features include 2 gigabit SFP (mini GBIC) optical ports, twenty four 10/100/1000 auto-negotiation gigabit ports over copper, and web-browser based interface management system.
www.air802.com/24-port-managed-gigabit-swit...

S.I. Tech, Inc. - Batavia, IL
Manufacturer
ISO 9001:2008 certified manufacturer of standard & custom Ethernet® switches. Available as unmanaged layer 2 Ethernet® switches with 10/100 Mbps data speeds. Features include multimode or single mode operation, 3 ports (2 optical & 1 electrical) & LEDs for power, link status & data speed. UL® & CE listed. Made in the USA.
www.sitechfiber.com/products/switch.htm

GC Electronics, Inc. - Rockford, IL
Manufacturer, Custom Manufacturer
Custom manufacturer of specialty switches including ethernet switches. Ethernet switches are available in various models with straight wiring & putty colors. Monitor data, telephone, voice & centronic switches are also available. Ethernet switches are suitable for computers & data transfer applications.
Brand Names: GC Electronics

Grainger Industrial Supply - Locations
Distributor
Distributor of a very wide range of switches including electrical, HVACR, pump, lighting, power tool, motor, outdoor equipment, pneumatic, material handling, safety, automotive, cleaning, fleet/vehicle maintenance, hydraulic, plumbing, power transmission, security, testing & welding switches. Services include 24-hour emergency order response services, inventory management services, safety services, repair and replacement programs, hazardous recycling services and storage/material handling equipment services. 1 year warranty.
Brand Names: Acme

Gridconnect - Naperville, IL
Distributor, Manufacturer, Manufacturers' Rep, Service Company
Manufacturer & distributor of networking products.

Westermo - Schaumburg, IL
Manufacturer
Manufacturer of managed, unmanaged and power over ethernet switches design for use in harsh environments for railway, defense water treatment, automation and roadway applications.

B & B Electronics Manufacturing Co. - Ottawa, IL
Distributor, Manufacturer, Custom Manufacturer
Custom manufacturer & distributor of ethernet switches. Specifications of ethernet switches include minus 40 degrees C to plus 85 degrees C operating temperature, minus 50 degrees C to plus 95 degrees C storage temperature & 14,880 pps for 10 Mbps performance. Features of ethernet switches include LED indicator, up to 96 Kbytes memory buffer, rugged DIN rail mount metal cases, broadcast storm filtering redundant & dual DC power inputs. Five & eight port ethernet switches are also available. Meet NEMA TS2 environmental regulations. Meets CE standards.
Brand Names: Allied Moulded, Amp-Trap, Cutler-Hammer, Digi, Ferraz Shawmut, Magnecraft, Maple, Sixnet,...

Hilscher North America, Inc. - Lisle, IL
Manufacturer
Manufacturer of industrial communication products. PC cards, modules, ASICs, gateways, switches, boards, analyzers & software.

Contemporary Control Systems, Inc. - Downers Grove, IL
Manufacturer
Manufacturer Of Control Systems