Intelligent RS-485 I/O expansion unit

The unit is used to expand I-87K series I/O modules via the RS-485 interface. It is equipped one power module, one RS-485 interface, one CPU module and several I/O slots. Only high profile I-87K series I/O modules can plug in the unit.

The most important features are

1. Auto configuration
    Each slot configuration can be pre-configured and stored in the CPU module, Once a module is plug in, the CPU module will
    write the pre-configured data to the module.

2. Hot Swap
    All I-87K modules circuit design allow it to be hot swapped. The unit don't need to power off while swapping I/O modules.

With above two features, the maintenance becomes very easy. If one module is damaged, the worker just need to find one new module and replace the damaged one. The whole system don't need to shut down for maintenance and the configuration will be done by the CPU module.

Intelligent USB I/O expansion unit

The unit is used to expand I-87K series I/O modules via the USB interface. It is equipped one power module, one USB interface, one CPU module and several I/O slots.

The most important features are

1. Hot Swap
    The USB-87Pn doesn’t need to shut down its power to replace or plug I-87K I/O modules. Therefore, the whole system can keep
    operating without any interruption.

2. Auto configuration
    Configurations of I-87K I/O modules can be pre configured and stored in the nonvolatile memory of the USB-87Pn. When the
    USB-87Pn is power on or an I-87K I/O module is plug in, the USB-87Pn automatically check and restore these configurations to
    each I-87K I/O modules on it.

Only high profile I-87K module can plug in the unit.