CT-N805

CorNet ARCNET Diagnostic Hub 8 Port Coax CE

Also available in a North American model (not CE certified) as a CT-N806. Please contact us for details.

Operating system independent BNC connectors on network ports RJ11 connectors on link ports Cabling: RG62A/U 93 ohm coax 120/220 VAC 50/60 Hz Meets FCC standards or CE certified Operating: 0C to 55C, 5% to 80% (non-condensing)

ARCNET hubs are available for coax, twisted pair, fiber or a combination of coax and fiber. Our hubs can also be linked to each other to expand the number of ports or connect hubs using different media types.

A CorNet ARCNET Diagnostic Hub is an ideal way to combine fiber optic cabling in high noise environments with lower cost coaxial cabling in low-noise environments.

Why CorNet Hubs

The CT-N800 & CT-N900 series of hubs were created to fill a need for an ARCNET hub with additional diagnostic capabilities for tracking down reconfiguration problems without resorting to the complexity and cost of an "intelligent hub". Some of these features include:

• Diagnostic indicators for each port to help isolate faulty connectors, cables, or ports by identifying the node with recon activity
• Expandable -- use link connectors to connect hubs without using up a port
• Wall and rack mountable -- mounting brackets are included
• Ideal for harsh environments
• Internal switching power supply uses less energy, and generates less heat, for more reliable long term operation.

• Modified Token Passing Local Area Network
• 2.5 Megabaud transmission
• Supports up to 255 nodes
• Coax cable lengths up to 2000 ft (600m)
• Twisted pair cable lengths up to 400 ft (120m)
• Fiber cable lengths typically up to 8000 ft (2.5 km)

How confident are we?

Before any CorNet product leaves our factory, we run it through an intensive burn-in procedure which isolates marginal components which other manufacturers'inspections often miss.

During our burn-in the adapters and hubs are turned on and connected to an operational LAN running diagnostic software. Then we raise the ambient temperature abnormally high for computer equipment (43C or 110F), creating even higher temperatures at the surface of the printed circuit board.

Our workmanship and quality control are second to none. If you're looking for reasonably priced ARCNET hubs and adapters for a harsh environment or just want the confidence of high reliability hubs and adapters for your office, the CorNet ARCNET products are for you.

DESCRIPTION

This is an ARCNET hub with diagnostic LEDs and linking ports. The CT-N800 series of hubs was created to fill a need for an ARCNET hub with additional diagnostic capabilities for tracking down reconfiguration problems without resorting to the complexity and cost of an "Intelligent Hub". These hubs are built to withstand a wide range of temperature and power line voltage swings. The hubs maintain full output levels even when running at maximum temperature and data traffic loads. This stability is provided through the use of a switching regulator in the power supply and attention to detail in the output driver section. The switching regulator produces less heat and withstands brownouts better than a linear regulator. Proper thermal design ensures that heat produced in the output drivers is dissipated via convection air currents in any acceptable mounting position.

OPERATING ENVIRONMENT

Operating Temperature:
0 to +55C

Humidity:
5% to 80% (non-condensing)

Arcnet LAN INTERFACE

Transmit Level:
15.4 Vp-p

Receive Sensitivity:
3.0 Vp-p

Impedance:
93 ohm coax

Connectors:
BNC connectors

PHYSICAL SPECIFICATIONS

Height:
2.75 inches

Width:
8.5 inches

Depth:
7.5 inches (including connectors)

Weight:
5 pounds

Included with the hub are two mounting brackets and four bolts for attaching the brackets to the hub. A link cable and one terminator are included for expanding the hub configuration to add more ports or to connect hubs with different types of media. A detachable power cord is also included.

INSTALLATION CONSIDERATIONS

Coax Cable Type:
RG62A/U 93 ohm with BNC connectors

Coax Distances
From node to hub 2000 ft.
Total network span up to 22,000 ft. (using standard time-outs)
Maximum of 10 active hubs may be between any two nodes on the network

Mounting
19" EIA rack mountable
Wall mountable
Stackable (up to 4 hubs)

CONFORMS TO THE FOLLOWING STANDARDS

EMC:
EN55022:1994 (Emissions)
CISPR 22 1993-12 Class A
FCC Part 15 Class A
EN 50082-1 (Immunity)
IEC 801-2:1991, 8KV Contact, 8KV Air
IEC 801-3:1984, 3V/m
IEC 801-4:1988, 0.5 KV Signal line, 1 KV Power line

Safety:
EN 60950:1992/A1:1993
IEC 950:1991+A1:1992+A2:1993
UL 1950, cUL (CSA 950 accepted equivalent)

European CE compliance