Manual

IQ-INT II IQ Interface
Page 12
Reference Manual
5 Specifications
General
Internal Controls: An 8-segment DIP switch is used to
configure the data rate and other parameters for
communication with the host computer. The switch is
accessed through an opening in the side of the
chassis.
Connectors
: :
: :
: Crown Bus Input: Eight 5-pin female DIN
connectors. Crown Bus Output: Eight 4-pin female
DIN connectors. (The Crown Bus Input and Output
connectors are grouped in pairs to accommodate eight
different loops.) Computer: Female 9-pin “D-shell”
connector.
Indicators: A front panel enable indicator shows that
the unit is plugged in and receiving power.
Power Supply: Standard full-wave bridge power supply
with a unique capacitor-coupled half wave doubler
circuit to generate –5 VDC.
Power Requirements
::
::
: 115-V units: 100- to 120-VAC,
50-60 Hz. 230-V units: 220- to 240-VAC, 50-60 Hz.
Power Consumption:
100VAC, 50 Hz: 8.1 W 100VAC, 60 Hz: 8.0 W
120VAC, 50 Hz: 10.6 W 120VAC, 60 Hz: 9.9 W
220VAC, 50 Hz: 10.3 W 220VAC, 60 Hz: 10.0 W
240VAC, 50 Hz: 11.6 W 240VAC, 60 Hz: 11.0 W
Finish: Black powder-coated steel chassis and front
panel.
Dimensions: 19-inch (48.3 cm) standard rack mount
width (EIA RS-310-B), 1.75-inch (4.4 cm) height and
6.5-inch (16.5 cm) depth.
Weight: 6 lbs., 4 oz. (2.91 kg)
Crown Bus Data Communication
Protection: The auto-reset feature is controlled by the
microprocessor. Optically coupled 20-milliamp current
loop receivers provide ground isolation.
Data Rate: 38.4 K baud.
Data Format: Asynchronous binary serial data with 1
start bit, 1 stop bit, 8 data bits and no parity check.
Interface Type
::
::
: 20-milliamp current loop.
Operation: Half duplex.
Intelligence: 8-bit microprocessor.
Transmission Distance: Variable from 200 to 3,000 feet
(61 to 914 meters) depending on wire capacitance.
1,000 feet (305 meters) is typical with shielded 26 AWG
twisted pair wire. IQ repeaters or fiber optic
transceivers can be used to cover greater distances.
Host Computer Data Communication
Data Rate: 300, 600, 1200, 2400, 4800, 9600, 19200, or
38400 baud.
Data Format: Asynchronous binary serial data with 1
start bit, 1 stop bit, 8 data bits and no parity check.
Interface Type
::
::
: RS232 or RS422.
Operation: Half duplex.
Data Buffer: 64 bytes.
Intelligence: 8-bit microprocessor.
Transmission Distance: RS232: 50 feet (15.2 m).
RS422: 2,000 feet (610 m).