Field Wire Conversion Module for A-B 1771-ID16 to 1756-IA16I or 1756-IH16I
or 1771-IQ16 to 1756-IB16I
Refer to conversion module Specifications Section: Maximum Operating Voltage
This is cable length in meters. Available lengths are limited to 005 (0.5m) and 010 (1.0m).
Conversion Module
Compatible 1771
Input Module
Compatible 1756
Input Module
Required 1492 Cable
1492-CM1771-LD004
1492-CM1771-LD004
1492-CM1771-LD004
1771-ID16
1771-ID16
1771-IQ16
1756-IA16I
1756-IH16I
1756-IB16I
1492-CONCAB
Y
1492-CONCAB
Y
1492-CONCAB
Y
PN-40377
DIR 10000045373
(Version 00)
Printed in U.S.A.
(Cat 1492-CM1771-LD004)
Local language (French, Italian, German & Spanish) versions of this document can be downloaded by going to www.ab.com.
In the left margin click on Publications Library and Literature Library. In the Search Area (right margin), Search by Catalog
Number and in the Search box type in the catalog number of the conversion system component.
I. Module Description
The 1492-CM1771-LD004 conversion module provides field wire signal conversion from an A-B 1771-ID16, 74 to
138Vac or 105 to 138Vdc, 16 point individually isolated input module to a 1756-IA16I, 79 to 132Vac
, 16 point
individually isolated input module or a 1756-IH16I, 90 to 146Vdc, 16 point individually isolated input module. The
1492-CM1771-LD004 conversion module also provides field wire signal conversion from an A-B 1771-IQ16, 10 to
32Vdc, 16 point individually isolated input module to a 1756-IB16I, 10 to 30Vdc
, 16 point individually isolated
input module. The conversion module provides the mating connector to the 1771-ID16 or 1771-IQ16 module
swing-arm/terminal block with the attached field wires. It routes those signals via its 37-pin connector and a
1492-CONCAB
Y pre-wired cable to compatible terminals on the 1756-IA16I, 1756-IH16I or 1756-IB16I (refer to
Wiring Diagrams on page 2, 3 and 4 for details).
II. Module Installation
The 1492-CM1771-LD004 conversion module must be installed in a 1492 conversion base-plate and cover-plate
assembly. The installation of the module into the assembly is explained in the Installation Manual that ships with the
conversion assembly. For a list of compatible assemblies refer to Appendix A.
III. Conversion Module Compatibility Matrix
Conversion Compatibility and
Product I.D. Label
37-Pin Connector for cable 1492-CONCAB
Y
1492-CM1771-LD004 Conversion Module
De-energize and lockout any and all power to all I/O field devices connected to the A-B 1771 I/O chassis,
and the power to the 1771 I/O chassis itself. Ensure all power is de-energized and locked out to any
device in the control cabinet where the conversion is to be performed. Ensure work is performed by
qualified personnel.
WARNING