Ross openGear GPI-8941 Series, Руководство пользователя

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GPI-8941 Series User Guide (v9.0) Before You Begin • 13
Before You Begin
The GPI-8941 cards provide an interface between openGear agents, such as DashBoard, and hardware devices that
communication via the General Purpose Interface (GPI). Some devices produce outputs (GPI outputs) that are
intended to either control other devices or signal their own status. When these signals are connected to inputs (GPI
inputs) on the rear module, the card communicates the state of the GPIs via the openGear protocol (OGP) to
DashBoard. Similarly, the GPI-8941 card accepts commands via OGP that cause it to product GPI outputs to
control external devices.
Features
The GPI-8941 includes the following features:
• Ability to individually select isolated/pull-to-ground setting for each GPI input
• Ability to individually select contact-closure/voltage-source setting for each GPI output
• Supports the Image Video™ GPI485 serial protocol
• Supports the Image Video™ GPInet protocol over Ethernet
• Supports RossTalk protocol over Ethernet
• Reports status and configuration remotely via DashBoard Control System
• Fits openGear frames
• 5-year transferable warranty
Workflow Diagram
Some devices produce GPI outputs that are intended to either control other devices or signal their own status. When
these signals are connected to GPI inputs on the GPI-8941 card, it will communicate the state of the inputs via the
openGear protocol (OGP) to DashBoard. Similarly, the GPI-8941 card will accept commands via OGP that cause it
to product GPI outputs to control external devices. The GPI-8941 card also communicates to/from other devices via
the RossTalk protocol, the Image Video™ GPInet or GPI485 protocols.
Table 2.1 Card Models
Card Model Number of GPI Inputs Number of GPI Outputs
GPI-8941-I16 16 0
GPI-8941-O16 0 16
GPI-8941-I16-O16 16 16
GPI-8941-I32 32 0
GPI-8941-O32 0 32