B&B Electronics Zlinx 485 - Manual (Page 7)

Hardware
Manual Documentation Number: Zlinx485m-1808
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Base Modules
Each Zlinx 485 system is built around a base module. Base modules provide Modbus,
digital and/or analog I/O and communicate with other Zlinx nodes.
Figure 3. A Typical Base Module
Several different combinations of digital inputs (DI), digital outputs (DO), analog inputs
(AI) and analog outputs (AO) are available. For example, the ZZ-NA-485 Base module
features a combination of two AI’s, two AO’s, two DI’s and two DO’s in a package.
Expansion Modules
Up to six expansion modules can be plugged into the base module to add more I/O
capabilities in any combination needed. For example, the ZZ-8DO-T Expansion module
provides eight additional digital outputs; the ZZ-2AI2AO provides two analog inputs and
two analog outputs.
Refer to Appendix E for a list of Zlinx 485 models and features.
Expansion modules connect to base modules by plugging the modules together, engaging
the local bus connectors located on the sides of the boxes. Male plugs on expansion
modules plug into female connectors on the side of the base module or other expansion
modules, resulting in a horizontal “stack” with the base module on the left and expansion
modules extending to the right.