Specifications

2.3 Real-Time Controllers
Real-time controllers interface devices that monitor processes, for example,
laboratory equipment
or manufacturing equipment. Real-time controllers
are typically parallel devices that transmit more than one bit of information
simultaneously.
2.3.1 ORQ38 Parallel Interface
The DRQ3B is a high-speed parallel interface that provides two
independent I6-bit, unidirectional data channels.
Functional Information
Two unidirectional channels
Interrupt vectors
Ordering Information
DRQ3B-SF
Cables
Configuration Information
Form factor
Power requirements
Power consumption
Bus loads
Module connectors
Each 512-word FIFO
One for both DMA channels
One for all other interrupts
Field-installed kit
Used to connect the DRQ3B to a user device or to
another DRQ3B. Order two cables for each DRQ3B
module.
• BC19T-25: 7.6 m (25 ft)
• BC19T-50: 15.2 m (50 it)
Quad height
+ 5 Vdc, 4.5 A
+12 Vdc,
0.0 A
22.5W
3.2 ac
0.5 dc
Two 50-pin, female
IEEE connectors
Option Specifications 2-45