Product Description
Allen Bradley 1771-A4B I/O Mounting Chassis
The 1771-A4B is an Allen-Bradley I/O chassis for mounting the 1771 I/O modules. The 1771-A4B has 16 slots and it supports the back panel mounting type. The I/O chassis measures approximately 12.4 inches by 24 inches by 7.6 inches. The 1771-A4B weighs 20lbs in average. The 1771-A4B provides an open type enclosure, has a 15g operating shock rating and a 30g non-operating shock. The 1771 PLC-5 system requires the I/O chassis like the 1771-A4B to enhance the mounting of its various modules. With the 1771 PLC-5 system modules mounted on the 1771-A4B chassis, communication across the processor module, the I/O modules, and the I/O adapter module is achieved through the backplane.
