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Main / Master Control Switchers / PGPI-4054

PGPI-4054 series GPI command consoles support 2 to 16 control lines with RS-232 status reporting capability (if used with the PIC-4051 or PPIC-3351 interface converters).

PGPI-4054 model index denotes the actual number of GPI lines: -14, -8 or -2.

Technical specifications

General description

The console may have from two to sixteen buttons on it's frontal panel for GPI commands.

A GPI line status is reflected by button's backlight: if a button is lit - the GPI line is activated (closed to the ground).

All the connectors are located on the rear panel: X1~X16 for GPI lines, two RJ-45 connectors for RS-232/485, a +5v power supply and the configuration switch SW.

Since PGPI-4054's output is of an open collector type, it is highly advisable to protect the GPI line with a clamping diode.

Using the PGPI 4054-Control.exe configuration utility it is possible to preset the way the buttons respond to depresses.
The following modes are available:

• an unlatched independent button
• a latched independent button
• an unlatched dependent button
• a latched dependent button

The RS-232 connectivity allows for the interoperation with the PIC-4051 and PPIC-3351 interface converters. The RS-232 data packet is described below:

• a four-byte packet
• the four least significant bits of each byte represent the GPI lines statuses
• the four most significant bits of each byte encode the byte number and the console address (as per Table#1)

This allows for daisy-chaining of consoles - by connecting console's RS-232 TX line to the RS-232 RX line of the next downstream console and accepting the similar connection from the upstream console.

Note#1:
For the sixteen-button consoles only up to three may be cascaded.
Note#2:
All cascaded consoles MUST be powered from the same power supply, otherways a switched off middle console will disconnect all it's upstream neighbours.

The RJ-45 connector pin-out:

Table#1

Note:

buttonXX – button number XX status:

• 0: button released, GPI - open
• 1: button depressed, GPI - closed

To assign an address for a console please use the PGPI 4054-Control.exe utility.

Mechanical description

PGPI-4054 console is the 1U rack-mountable device. Each button may be labeled individually.