Allen-Bradley  Automation 1771-OGD  Digital DC TTL Output Module

General Information

• Manufacturer: Rockwell Automation

• Brand: Allen-Bradley

• Part Number / Catalog No.: 1771-OGD

• Module Type: Digital DC Output Module

• Number of Outputs: 16 Outputs

• Voltage Category: 5 Volts DC, TTL

• DC Operating Voltage: 5.0–5.3 Volts

• Backplane Current: 230 mA

• Max Continuous Current per Output: 0.20 A (Sink), 0.001 A (Source)

• Max Continuous Current per Module: N/A

• Wiring Arm: 1771-WH

• Model Status: Earlier Model

• Coating: Conformal Coat

• Typical AC Signal Delay (Off): 45 ±15 ms

• Typical DC Signal Delay (Off): 50 ms

• Mounting: Rack Mountable

• UPC: 10612598003188

Technical Overview

The Allen-Bradley 1771-OGD is a PLC 5 series TTL output module that requires two power sources: the I/O chassis backplane it is installed in, and a 5 V DC rated external power supply for TTL signal transmission.

Performance and Reliability

• Output signal delay: <1 ms maximum

• Power dissipation: 2.8 W (max), 9.5 BTU/hr (max)

• Voltage isolation: 1500 V AC (RMS)

• Output fuse: 0.5 A, 250 V Normal Blow

• Field wiring arm torque: 7–9 in-lbs

• Wire specification: Standard 14-gauge (2 mm²) stranded, shielded (Belden 8761) with 3/64 inch (1.2 mm) insulation

• Keying to I/O backplane: Connector band between pins 16–18 and pins 26–28 of the I/O backplane top connector

Environmental Specifications

• Operating temperature range: 0–60°C (32–140°F)

• Humidity: 5–95% non-condensing

• Certifications: CSA, CE, UL