Allen-Bradley 1756-TIME

Technical specifications

Manufacturer

Allen-Bradley

Manufacturer part no.

1756-TIME

Type

Communication module

Application

Communication module

Used with

1756 ControlLogix chassis

Temperature, operating

0…+50 °C (+32…+122 °F) in a Series B Chassis 0…+60 °C (+32…+140 °F) in a Series C Chassis

Temperature, nonoperating

-40…+85 °C (-40…+185 °F)

Relative humidity

5…95% noncondensing

Emissions

IEC 61000-6-4

EDS Immunity

4 kV contact discharges 8 kV air discharges

EFT/B Immunity

±2 kV at 5 kHz on signal ports ±2 kV at 5 kHz on communications ports

Surge Transient Immunity

±2 kV line-earth(CM) on signal ports no shielded ports - omit from publication ±2 kV line-earth(CM) on communications ports

Conducted RF Immunity

10V rms with 1 kHz sine-wave 80% AM from 150 kHz…80 MHz

Enclosure type rating

None (open-style)

Voltage and current ratings

Backplane: 1.01A @ 5.1V DC, 2.64 mA @ 1.2 V DC

Isolation voltage

30V (continuous), Basic Insulation Type, Type tested at 1000V AC for 60 s, Ethernet Ports to Backplane, IRIG-B to Backplane, Compliant and tested according to IEC/UL 61010-1

Wire size

Ethernet connections, RJ45 connector according to IEC 60603-7, 2 or 4 pair Category 5e minimum cable according to TIA 568-B.1 or, Category 5 cable according to ISO/IEC 24702, IRIG-B connection, Type RG58 or equivalent, Antenna connection, Cable assembly, TNC Plug to SMA, ships with product

Wiring Category

2 - on signal ports 2 - on communications ports

Technical documents (1)

• Rockwell Automation technical data 1756-TD003

Key features

• Operates at 0…+60 °C in a Series C chassis
• Nonoperating temperature range of -40…+85 °C
• Ethernet ports with RJ45 connector to IEC 60603-7
• IRIG-B connection using Type RG58 cable
• Antenna cable assembly, TNC plug to SMA, ships with product

About the Allen-Bradley 1756-TIME

The 1756-TIME is the ControlLogix Position and Time Services module, discontinued on 12/7/2022 (technical data 1756-TD003). It draws 1.01A at 5.1V DC and 2.64 mA at 1.2 V DC from the backplane. It works from 0…+50 °C in a Series B chassis and 0…+60 °C in a Series C chassis, at 5…95% noncondensing humidity, and is open-style.

What is the 1756-TIME used for?

It supplies position and time to a ControlLogix system, with Ethernet ports, an IRIG-B connection and an antenna connection. Isolation is 30V continuous between the Ethernet ports and the backplane, and between the IRIG-B connection and the backplane.

Lifecycle and successor

Discontinued (Rockwell Automation lifecycle status, discontinued 12/7/2022, checked 24 October 2026).

Before you order

What to photograph or confirm so the right unit is quoted.

Read the catalog number 1756-TIME, the series letter and the firmware revision from the label. Send us a photo of the label and we confirm the match before we quote.