GE IC660TSA020 I/O Assembly | 8 AI 4 AO Genius Terminal

This analog I/O terminal assembly connects field devices to GE Genius distributed I/O systems. It provides termination points for analog sensors and actuators. Therefore, it simplifies field wiring and maintains signal integrity for process measurements.

Physical and I/O Specifications

The GE IC660TSA020 measures 23.0 cm in length and 12.5 cm in width. Moreover, its assembly weight equals approximately 0.95 kg for DIN rail mounting. A single Genius bus connector links this assembly to the network controller. Additionally, the assembly provides eight analog input and four analog output channels.

Parameter	Specification
Brand	General Electric (GE)
Full Model	IC660TSA020
Category	Analog I/O Terminal Assembly
Dimensions (L x W x H)	23.0 cm x 12.5 cm x 7.5 cm (9.06″ x 4.92″ x 2.95″)
Assembly Weight	0.95 kg (2.09 lbs)
Network Interface	1 x Genius Bus (Terminal Block or D-Sub)
Field Wiring Points	24 Screw Terminal Blocks
Analog Input Channels	8 Differential Channels
Analog Output Channels	4 Single-Ended Channels
Input Signal Range (Voltage)	0-10 VDC, -10 to +10 VDC
Input Signal Range (Current)	0-20 mA, 4-20 mA (with External Resistor)
Output Signal Range (Voltage)	0-10 VDC (Configurable)
Output Signal Range (Current)	4-20 mA
Input Resolution	12 Bits (0 to 4095 Counts)
Output Resolution	12 Bits (0 to 4095 Counts)
Input Impedance (Voltage)	1 MΩ (Typical)
Input Impedance (Current)	250 Ω (with External Resistor)
Output Load Resistance	> 2 kΩ (Voltage), < 500 Ω (Current)
Absolute Accuracy (Input)	±0.5% of Full Scale at 25°C
Absolute Accuracy (Output)	±0.5% of Full Scale at 25°C
On-Board Components	8 Input Signal Conditioners + 4 Output Drivers + 1 Microcontroller + 2 ADC Chips + 1 DAC Chip + 12 Protection Diodes + 1 EMI Filter + 1 Temperature Sensor
Energy Storage	3 x 470 µF Electrolytic Capacitors (35V) + 2 x 100 µF (16V) + 2 x 10 µF Tantalum (25V)
Operating Voltage	24 VDC (from Genius Bus Power, 200 mA)
Isolation Rating	1500 Vrms (Field to Logic)
Operating Temperature	0°C to +60°C (32°F to 140°F)
Mounting Type	DIN Rail (EN 50022)
Status Indicators	1 Green LED (Power) + 1 Green LED (Communication) + 8 Green LEDs (Input Active) + 4 Green LEDs (Output Active) + 1 Red LED (Fault)

Analog Input and Output Features

The GE IC660TSA020 provides eight analog inputs and four analog outputs for process control. Specifically, differential inputs reject common-mode noise for accurate sensor readings. In addition, the 12-bit input resolution delivers 4096 discrete counts for precise measurement. Moreover, the 12-bit output resolution provides smooth control signals for actuators. Furthermore, you can configure each input for voltage or current modes with external resistors. Thus, this assembly handles a wide variety of industrial analog sensors and actuators.

Genius Network Communication

This terminal assembly connects to GE Genius distributed I/O networks for remote control. Specifically, it communicates with the network controller using Genius bus protocol. In addition, the module scans I/O and updates the controller every 5 milliseconds. Moreover, the assembly supports both analog and digital device networking. Furthermore, you can mount this assembly up to 750 meters from the controller. Consequently, the GE IC660TSA020 suits large distributed control applications.

Terminal Block Layout and Field Wiring

You will find twenty-four screw terminal blocks arranged along the assembly edges. Specifically, sixteen terminals serve the eight analog inputs (two per channel). In addition, eight terminals serve the four analog outputs (two per channel). Moreover, these terminals accept 12-22 AWG copper wires securely. Furthermore, the assembly includes four mounting holes for standoff installation. Thus, this terminal assembly simplifies field wiring for analog signals.

Energy Storage and Signal Integrity

This terminal assembly stores energy using seven onboard capacitors for power filtering. Specifically, three electrolytic capacitors smooth the 24 VDC supply for stable analog circuits. In addition, two capacitors filter power for the microcontroller and Genius transceiver. Moreover, two tantalum capacitors provide high-frequency noise suppression for ADC and DAC chips. Furthermore, a temperature sensor monitors board ambient conditions. Therefore, this assembly maintains signal integrity in electrically noisy industrial environments.

Installation and Diagnostic Indicators

Fifteen LED indicators provide operational status at a glance on this assembly. First, a green Power LED lights when the 24 VDC supply is present. Second, a green Communication LED flashes during network data exchange. Third, eight green Input Active LEDs illuminate when each analog input detects a valid signal. Fourth, four green Output Active LEDs show when each analog output is active. Finally, a red Fault LED indicates input out-of-range or temperature alarms. Thus, you can diagnose analog I/O status instantly without external test equipment.