The 1769-IQ32T belongs to the Allen‑Bradley Compact I/O family. It provides 32 discrete input channels for 24V DC signals. Each channel supports sink or source configuration, giving you flexible wiring options. This module divides its inputs into four electrically isolated groups. Every group contains eight individual points.
A key feature of the 1769-IQ32T is its prefabricated cable termination system. The module ships with a 1746-N3 40-pin female connector. This connector mounts directly to the front panel. It keeps the front area clean and accessible for troubleshooting. You can also use Allen‑Bradley 1492 wiring systems with this module.
Additionally, this input module works with CompactLogix controllers and the MicroLogix 1500 system. The power supply distance rating is eight modules. Therefore, do not place it more than eight slots away from the power supply. Suitable power supplies include the 1769-PA2, 1769-PB2, 1769-PA4, and 1769-PB4.
The 1769-IQ32T has an on‑state voltage threshold of 10V DC. Its off‑state voltage is 5V DC. The nominal voltage category is 24V DC sink/source. Operating voltage varies with temperature:
At 30 °C (86 °F): 10…30V DC
At 60 °C (140 °F): 10…26.4V DC
The input delay for the on state is 8 ms. Isolation is reinforced between input points and the bus, plus between groups. The maximum inrush current is 5 mA.
Key electrical parameters:
Inputs per module: 32
Groups: 4 (8 inputs each)
Wiring: sink/source selectable per group
Replacement terminal block: 1769-RTBN18
Wire size (solid): 22–14 AWG
Wire type: copper, 90 °C
Wiring accessory included: 1746-N3 connector
The 1769-IQ32T weighs 0.97 lb (440 g). Its shipping dimensions are 8 x 8 x 5 in. The slot width is 1.5 inches. You can mount it on a panel or a DIN rail. For DIN rail mounting, the operating shock rating is 20G. For panel mounting, it is 30G.
Operating vibration is 5G at 10 to 500 Hz. The enclosure style is open‑type. It carries c‑UL and CE certifications. Maximum operating altitude is 2000 m without derating. The operating temperature range is 0 °C to 60 °C (32 °F to 140 °F). Storage temperature ranges from -40 °C to 85 °C (-40 °F to 185 °F).
First, verify the power supply distance rating. Do not install the 1769-IQ32T more than eight modules away from the power supply. Next, use copper wire rated for 90 °C. Strip solid wires to the correct length for 22‑14 AWG.
Then, attach the 1746-N3 connector to the front panel. This connector provides 40 terminals for all input channels. For wiring, connect sinking inputs to the DC COM terminal. For sourcing configuration, connect the V+ signals to the DC COM terminal.
Furthermore, use the tongue‑and‑groove slots to install the module. Slide it against the adjacent module or processor. Move the bus lever to the left until it clicks. This ensures proper electrical connection and communication. Always shut off power before wiring or removing the 1769-IQ32T.
1769-IQ32T module (one unit)
1746-N3 40-pin female connector
Removable write‑on terminal labels
Installation instructions leaflet
Note: Certificates and warranty are not included in the package.
We ship the 1769-IQ32T via FedEx, UPS, or DHL. Standard delivery times depend on your location.
1. What is the difference between the 1769-IQ32 and the 1769-IQ32T?
The 1769-IQ32T includes a 1746-N3 prefabricated cable connector for remote termination. The standard 1769-IQ32 uses a removable terminal block instead.
2. Can I use the 1769-IQ32T with a MicroLogix 1400?
No. It is compatible only with MicroLogix 1500 and CompactLogix controllers.
3. How do I configure sinking vs sourcing wiring on this module?
You set the wiring per group. For sinking, connect DC common to the DC COM terminal. For sourcing, connect V+ to the DC COM terminal.
4. What power supplies work with the 1769-IQ32T?
Recommended power supplies include the 1769-PA2, 1769-PB2, 1769-PA4, and 1769-PB4.
5. Does the module have status indicators for each input?
Yes. Each input group has diagnostic LEDs. They help you monitor field device status quickly.
| Brand Name | Allen-Bradley |
| Model No. | 1769-IQ32T |
| Product Type | Discrete Input Module |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
The 1769-IQ32 from Allen‑Bradley is a high‑density DC input module with 32 channels. It supports both sinking and source wiring. This module works perfectly with CompactLogix and MicroLogix 1500 controllers. You get four isolated groups of eight inputs each. It is a reliable choice for industrial discrete signal monitoring.
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