The General Purpose Computer (GPC)-1000 unit can serve in one of four roles: (1) as the voting plane in redundant flight control architecture, (2) it can be an I/O data concentrator, (3) it can function as the mission computer or (4) it can provide flight controls/autopilots to an application. The GPC-1000 accepts the state-vector output from one or more Athena INS/GPS products, closes the autopilot control loop, performs the voting logic and sends the control commands to actuators. These include primary flight controls, stability augmentation flight controls, engine controls, and other subcomponent controls.

Key Features & Benefits
*Supports Triplex, Dual and Simplex flight control architectures
*Supports single or multiple servo-control channels per GPC-1000
*Contains a CPU that supports communication with all installed INS/GPS and its designated servo-control channels
*CPU also supports any voting functions allocated to the unit in the target architecture

Specifications:

Size
16 x 13 x 7.6 cm (6.3 x 5.1 x 3 in)

Weight
0.91 kg (2.0 lbs)

Update rate
Servo update rate ? 50 Hz

Flash memory
Capable of supporting 512 MB

Enclosure
Aluminum

Power
? 8 W @ 28 VDC under nominal conditions; no loads

Differential analog inputs
8 Differential analog inputs
The analog inputs support voltage levels of -9.02 VDC to + 10 VDC
Configurable to support analog input voltage ranges within the maximum -9.02 V to + 10 V range on a per channel basis
The analog inputs are converted with a resolution of minimum 11 bits

General purpose discrete inputs
Up to 16 General purpose discrete inputs
Supports pulse-width modulated (PWM) operation
28 V tolerant
Default low or default high; configurable at the time of PCA manufacture
VIL ? 0.8 VDC
VIH ? 3.5 VDC
5 V or 28 V nominal; input voltage levels are configurable at the time of PCA manufacture

Dedicated discrete inputs
6 Dedicated discrete inputs support two UID bits, one SW_EN bit, and three health bits
Supports VIL ? 0.8 VDC
Supports VIH ? 3.5 VDC

Differential discrete inputs
1 Discrete input driven at RS-422 levels, 2 pins
Supports PWM operation

Analog outputs
1analog output
Voltage range is -10 V to + 10 V (configurable ranges)
Current capability is ? 20 mA

Reference voltage output for analog inputs
1 analog reference voltage output

General purpose discrete outputs
Up to 14 General purpose discrete outputs
Outputs are individually selectable, via jumpers at the time of PCA manufacture, to supply either 5 VDC, or 28 VDC nominal
VOL ? 0.8 VDC unloaded; ? 1.5 V with 200 mA load
VOH ? 3.5 VDC when the 5 V strapping option is selected
VOH ? 16.0 VDC when the 28 V strapping option is selected
Each of the 11 outputs are capable of PWM operation
Each of the 11 outputs are driven by a tri-state device, individually controlled by hardware logic

Health bit discrete outputs
3 Discrete outputs dedicated for the output of unit health bit information.
Provide VIL ? 0.8 VDC
Provide VOH 3.5 ? VDC for 5 VDC output operation or VOH ? 16 VDC for 28 VDC output operation

Discrete RS-422 level outputs
2 RS-422 level discrete outputs, 2 pins each
Each of the discrete RS-422 level outputs are capable of PWM operation
Each of the 2 discrete RS-422 level outputs are driven by a tri-state device, individually controlled by hardware logic

RS-232 only port
1 Serial port that supports the RS-232 standard only; (2 pins)

RS-232/422/485 serial ports
3 General purpose serial I/O channels that can be each be strapped via hardware jumpers at the time of PCA manufacture to support either the RS-232, RS-422, or RS-485 (2 or 4 wire) serial communication standard

RS-422/485 serial ports
5 General purpose serial I/O channels that can be each be strapped via hardware jumpers at the time of PCA manufacture to support either the RS-422 or RS-485 (2 or 4 wire) serial communication standard

Serial input / output
Serial ports configured for RS-232 operations operate at rates up to 115.2 kb/s
Serial ports configured for RS-422 or RS-485 operate at rates up to 921.6 kb/s
Outputs of 8 of the 9 serial ports are driven by a tri-state device, individually controlled by hardware logic

CAN Bus
2 CAN 2.0 A serial I/O channel, 2 pins each
Provides the option for installation of a CAN bus termination resistor at the time of PCA manufacture
Outputs of the CAN bus are driven by a tri-state device, controlled by hardware logic

Ethernet
Supports one 10/100 BASE-T interface connecting the bulkhead connector to the processor for maintenance and PPP communication; 4 pins.