Product Name: TTL Input Module
Brand Name: Allen-Bradley
Model Number: 1771-IG
Place of Origin: USA
Warranty: 12 Months
Whatsapp：+86 18020776782
Email：[email protected]
Sales |
Phone/Whatsapp |
|
Jim Pei |
| Product Name | Allen-Bradley 1771-IG TTL Input Module |
| Manufacturer | Allen-Bradley |
| Product Type | TTL Input Module |
| Part Number | 1771-IG |
| Place of shipment | Xiamen, China |
| Country of origin | USA |
| Inputs per Module | 8 |
| Module Location | 1771 I/O Chassis |
| HIGH = TRUE – ON Voltage | 2.0 to 5.25 VDC |
| HIGH = TRUE – OFF Voltage | -0.2 to +0.8 VDC |
| LOW = TRUE – ON Voltage | -0.2 to +0.8 VDC |
| LOW = TRUE – OFF Voltage | 2.0 to 5.25 VDC |
| Logic Selection | HIGH = TRUE or LOW = TRUE, switch selectable |
| Customer Supply Voltage | 5 VDC (±0.25 V) |
| Maximum Supply Ripple | 50 mV peak-to-peak |
| Customer Current Sink Requirement – Source | 7 mA max. per input |
| Customer Current Sink Requirement – Sink | 0.8 mA max. per input |
| Customer Supply Current | 500 mA max. per module |
| Backplane Current | 122 mA max. |
| Input Signal Delay | <1 ms |
| Power Dissipation | 3.3 W max.; 0.6 W min. |
| Thermal Dissipation | 11.3 BTU/hr max.; 2.0 BTU/hr min. |
| Isolation Voltage | Tested at 1500 VAC RMS for 1 second |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Relative Humidity | 5% to 95%, non-condensing |
| Maximum Wire Size | 14 AWG stranded |
| Recommended Cable | Shielded Belden 8761 |
| Maximum Cable Length | 50 ft per output device |
| Field Wiring Arm | 1771-WC |
| Wiring Arm Screw Torque | 7–9 in-lb |
| Keying | Between 4 and 6; between 34 and 36 |
| Status Indicators | 9 indicators: 1 HIGH=TRUE indicator + 8 input indicators |
| Compatible TTL Output Module | 1771-OG |
| TTL Device Output Requirement | Open-collector outputs |
| Recommended Pull-up Resistor | 1 kΩ typical |
| Input Filtering | Built-in filtering for contact bounce and electrical noise |
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Minimum Order Quantity |
1 Piece |
|
Price |
Contact for Jim |
|
Packaging Details |
Original new Factory Sealed |
|
Delivery Time |
3–7 Days |
|
Payment Terms |
T/T |
|
Shipping Method |
DHL / FedEx / UPS / TNT |
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Supply Ability |
In stock |
The Allen-Bradley 1771-IG is an 8-point TTL Input Module designed for installation in 1771 I/O chassis and integration with low-voltage TTL-level devices. It supports switch-selectable HIGH=TRUE or LOW=TRUE logic and operates with standard 5 VDC TTL signals, providing flexible interfacing with compatible open-collector output devices. With fast input response, built-in filtering, electrical isolation, and individual input status indicators, the module provides reliable digital signal acquisition for industrial control, machine automation, and legacy Allen-Bradley 1771 I/O systems.
Compared with conventional digital input modules, the Allen-Bradley 1771-IG provides dedicated TTL-level compatibility, selectable logic operation, fast signal response, and reliable integration with legacy 1771 automation systems.
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Warranty Support
Most products are covered by a warranty of up to 12 months, subject to the applicable terms and conditions. If any product-related issue occurs during the warranty period, our team will assist you and provide an appropriate solution.
Technical Documentation
Relevant datasheets and technical literature can be provided with the goods, offering useful information for product identification, installation, operation, and maintenance.
Fast Response
We understand the importance of minimizing equipment downtime. Our team responds promptly to inquiries and provides professional assistance with product information, quotations, order status, shipping, and after-sales questions.
Global Customer Service
We serve customers worldwide and provide reliable assistance from inquiry to delivery and after-sales service, ensuring clear and timely communication throughout the process.
Long-term Spare Parts Supply
We continue to source discontinued, obsolete, and hard-to-find automation parts from various brands, helping customers maintain existing equipment and reduce downtime caused by spare parts shortages.
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