CT-N108 (QNET Card QNX Part Number: 003049)

CorNet ARCNET Adapter PC Coax QNX

This adapter is a customized ARCNET adapter manufactured exclusively for QNX Software Systems Ltd. Please contact QNX Software Systems Ltd. directly to order this adapter. The QNX part number is 003049. Other information may be found on the following spec sheet and technical support pages. This card is designed to replace the CT-NET-A700 adapters used for QNX2 and QNX4 applications which became impossible to make due to obsolete parts. Where secure and robust communications are needed, ARCNET is a proven solution. Well suited for real-time control applications, ARCNET eliminates transmission collision on bust networks. Why CorNet Adapters? All Corman Technologies' networking products are engineered for reliability and are easy to install, use and manage. Some of these features include: Fully compatible with QNX 4, most support QNX 2

• Menu selectable node id, timeouts and interrupt level
• Specialized adapters including Coax, Twisted Pair, Fiber Optics (both commercial and industrial temperature)
• Individually tested to meet network signal requirements
• Elevated temperature burn-in for maximum reliability and operation in harsh environments

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 a specialized 8-bit coax ARCNET adapter. This adapter is fully compatible with both QNX 2 and QNX 4.

OPERATING ENVIRONMENT

Operating Temperature:
0 to 43C

Storage Temperature:
-40 to 125C

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

Signal Levels:
Transmit: 15.4 Vp-p
Receive sensitivity: 3.0 Vp-p

Arcnet LAN INTERFACE

• Modified Token Passing Local Area Network
• 2.5 Megabaud transmission
• Supports up to 255 nodes
• Requires only 8 kbytes of Address Space
• IBM PC, XT, AT and compatible
• Switch selectable memory map base address (CC00,CE00,DC00,DE00,EC00,EE00)
• Menu selectable node ID and interrupt level (levels 2,3,4,5,6 & 7)
• 2 KB dual ported RAM buffer for high speed interleaved message transfer
• Software reset capability

PHYSICAL SPECIFICATIONS

• PCB mounted low profile BNC connector to RG-62 A/U 93 Ohm coaxial cable
• LED indicators: Green indicates the network is operating normally. Red - indicates node activity
• Short length 8 Bit ISA Bus Card ( 4.97" long)

INSTALLATION CONSIDERATIONS

Coax Cable type:
RG62A/U 93 ohm with BNC connectors Coax Distances:
From node to hub 2000 ft. (600 m)
Total Network Span up to 22,000 ft. (6600 m) (using standard time-outs)
Maximum of 10 active hubs may be between any two nodes on the network

CONFORMS TO THE FOLLOWING STANDARDS

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

European CE compliance