| DESCRIPTION
|
| This is a coax ARCNET adapter. This adapter is fully compatible with both QNX 2 and QNX 4.
|
|
|
|
| OPERATING ENVIRONMENT
|
| Power:
|
+5V DC +/-5% @ 1A (typicalles than 200mA)
|
| -12V DC +/- 5% @ 21 mA
|
| Operating Temperature:
|
0 to 43 ºC
|
| Storage Temperature:
|
-40 to 125 ºC
|
| 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 rate
|
| 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 ciaxial cable
|
| green LED indicates that the network is operating normally
|
| red LED indicates node activity
|
| Short length 8 Bit ISA Bus Card ( 4.97" long)
|
|
|
|
| INSTALLATION CONSIDERATIONS
|
| Coax cable type
|
RG62A/U93 ohm with BNC connectors
|
| Coax distances
|
From node to hub 2000 ft. (600m)
|
| Total network span up to 22,000 ft (6600m) (using standard time-outs)
|
| Maximum of 10 active hubs may be between any two nodes on the network
|
|
|
|
| CONFORMS TO THE FOLLOWING STANDARDS
|
| ARCNET:
|
ANSI 878.1
|
| 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, 15KV Air
|
| IEC 801-3:1984
|
| 3V/m
|
| IEC 801-4:1988
|
| 0.5 KV Signal line,
|
| 1 KV Power line
|
| European CE compliance
|
