Digital I/O Conversion Module
(Cat 1492-CM1771-LD006)
I. Description
This Digital I/O Conversion Module provides for the conversion of (1) 1771, 16 point I/O modules to be converted to (1) 1756,
16 point I/O module OR (1) 1771, 16 point I/O module to (2) 1756, 8 point I/O modules, and consists of the following:
(1) 1771 Module (16pt) to (1) 1756 Module (16pt)
(1) Conversion Module: 1492-CM1771-LD006
(1) Cable: 1492-CONCAB005X (Table 2)
(1) Conversion Mounting Assembly: 1492-MUA… (Table 1)
(1) 1771 Module (16pt) to (2) 1756 Module (8pt)
(1) Conversion Module: 1492-CM1771-LD006
(1) Cable: 1492-CONCAB005S2 (Table 2)
(1) Conversion Mounting Assembly: 1492-MUA… (Table 1)
This conversion is accomplished without the removal of any field wires from the existing 1771 Swing Arms. The existing 1771
Swing Arm fits directly onto the edge connectors of the 1492 Conversion Module. On one end of the 1492 Cable is (1) connector for the Conversion Module. On the other end are (1) or (2) Removable Terminal Blocks (RTBs) for the 1756 I/O module(s),
as shown in the photos below. The I/O signals are routed through the 1492 Conversion Module and the 1492 Cable to the
appropriate terminals on the 1756 I/O module(s) per the Wiring Diagrams in Section V. As standard, the 1492 Cables are 0.5M
long, but we also offer a 1.0M cable length. Refer to the footnotes in Table 2 for further details.
25-Pin Connector for cable 1492-CONCAB
Conversion Compatibility
and Product I.D. Label
37-Pin Connector for cable
1492-CONCAB005
1492-CM1771-LD006 Conversion Module
Conversion Compatibility and
Product I.D. Label
005X
Cable
1492-CONCAB
S2
005S2
WARNING
PN-114278
DIR 10000060089 (Version 01)
Publication 1492-IN036B-EN-E
Printed in U.S.A.
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.
II. Installation
:
The 1492 Conversion Modules must be installed in a 1492 Conversion Mounting Assembly (see Table 1 below). A
complete System Installation Manual ships with the 1492 Conversion Mounting Assembly.
1) Determine the quantity of each type of 1771 I/O modules used in the 1771 I/O Chassis to be converted.
2) Select the applicable 1492 Conversion Modules from Table 2, Section III.
3) Review the Max Slots for I/O and Chassis Width data from the Table 1 below.
4) Select a 1756 I/O Chassis which has enough I/O Slots.
NOTE: (2) I/O slots are required in the 1756 Chassis for conversions where (1) 1771 I/O module converts to (2) 1756 I/O
modules.
5) Select the 1492 Conversion Mounting Assembly which has enough Conversion Module slots.
NOTE: (2) Conversion Module slots are required in the 1492 Conversion Mounting Assembly for conversions where (2)
1771 I/O module convert to (1) 1756 I/O modules.
NOTE: The 1492 Conversion Mounting Assembly has the same Height & Width foot-print as the 1771 Chassis and is
designed to use the same mounting hardware. The combined Depth of the 1492 Conversion Mounting Assembly with the
1756 Chassis mounted on top is 10.25 inches (Controller w/key) or 10.0 inches (Controller w/o key). Dimension drawings
are included in the System Installation Manual that ships with the 1492 Conversion Mounting Assembly.
Table 1: Bulletin 1771 to 1756 Chassis Conversion
1771 Chassis 1756 Chassis Conversion Mounting Assembly
(2)
with
Power
Supply
Cat. No.
Max
Slots
for
I/O
Chassis
Width
Cat. No.
Max Slots
for
Conversion
Modules
Chassis
Width
Cat. No.
Max
Slots
for
I/O
Chassis Width
without
Power
Supply
1771-A1B 4 9.01 12.61
1771-A2B 8 14.01 17.61
1771-A3B1
1771-A4B 16 24.01
(1)
12 19.01
1756-A4
1756-A7
1756-A7
1756-A10
1756-A10
1756-A13
1756-A13
1756-A17
3 10.35
6 14.49
6 14.49
9 19.02
9 19.02
12 23.15
12 23.15
16 29.06
1492-MUA1B-A4-A7 4 9.01
1492-MUA2B-A7-A10 8 14.01
1492-MUA3-A10-A13 12 19.01
1492-MUA4-A13-A17 16 24.01
oot Notes
1771-A3B is not listed as it is used for 19 inch wide instrumentation panels.
Notice that the 1756 Chassis Width sometimes exceeds the 1771 Chassis Width, with or without the Power Supply. The
Cover-Plate of the 1492 Conversion Mounting Assembly allows the 1756 Chassis to be Left justified, Right justified or
Centered. A complete System Installation Manual ships with the 1492 Conversion Mounting Assembly.
PN-114278
DIR 10000060089 (Version 01)
Publication 1492-IN036B-EN-E
(2)
III. Compatibility
Table 2: Bulletin 1771 to 1756 Conversion Modules and Cables
1771
Digital I/O Module
Digital I/O Module
1756
1492
Conversion Module
1492
Cable
1771-IGD 1756-IG16 1492-CM1771-LD006 1492-CONCAB005X
1771-OAD 1756-OA16 1492-CM1771-LD006 1492-CONCAB005X
1771-OBD 1756-OB16E 1492-CM1771-LD006 1492-CONCAB005X
1771-OBDS 1756-OB16E 1492-CM1771-LD006 1492-CONCAB005X
1771-OGD 1756-OG16 1492-CM1771-LD006 1492-CONCAB005X
1771-OMD 1756-OA16 1492-CM1771-LD006 1492-CONCAB005X
1
771-OND 1756-ON8 (Qty 2)
1492-CM1771-LD006 1492-CONCAB005S2
Foot Notes:
)To understand any issues concerning I/O module compatibility, refer to the Installation Manuals for the specific
1771 and 1756 I/O modules involved.
The 3 numbers indicate the cable length of each portion of the 1492 Cable. Recommended cable length of 0.5M is
shown. Additional cable lengths are as follows:
1.0M = 1492-CONCAB010X or 1492-CONCAB010S2
The two 1756 modules must be located directly next to each other in the 1756 chassis.
V. Conversion Module Specifications
(Operating specifications are when installed in the Conversion System base / cover-plate assembly)
Specification
Dimensions
Approximate Shipping Weight
Storage Temperature -40 to +85°C (-40 to +185°F)
Operating Temperature
Operating Humidity
Shock
Non-operating
Operating
Operating Vibration
Maximum Operating Voltage 132 Vac at 47 to 63Hz or 132 Vdc
Max. Module Operating Current
Per Point:
Per Module:
Agency Certifications
Pollution Degree
Environmental Rating
11.81 in. (height) x 4.38 in. (depth) x 1.5 in. (width)
300 mm. (height) x 111.25 mm (depth) x 38.1 mm (width)
250.6 g (0.55 lbs) (includes carton)
0 to 60°C (32 to 140°F)
5 to 95% at 60°C (non-condensing)
50g
30g
2g at 10 to 500Hz (Agrees with 1756 I/O module specifications)
2 Amps
4 Amps
UL Classified: Under UL File Number E113724
CSA
CE: compliant for all applicable directives
2
IP20
NOTICE
Value
Refer to the Wiring Diagram(s) for
current limits for a specific configuration.
PN-114278
DIR 10000060089 (Version 01)
Publication 1492-IN036B-EN-E
(3)
V. Wiring Diagrams
Conversion: 1771-IGD to 1756-IG16
WARNING
+
-
DC Input
Device
There are several key application considerations and system specifications (bottom of drawing) when
using these components (conversion module, cable and input module). Read and understand these
considerations before installation.
Conversion Module
1492-CM1771-LD006
Cable
10
9
1
2
3
4
5
6
7
8
11
12
13
14
15
16
17
18
20
19
DC-0+
RTN OUT-0
IN-0
IN-1
IN-2
IN-3
IN-4
IN-5
IN-6
IN-7
IN-8
IN-9
IN-10
IN-11
IN-12
IN-13
IN-14
IN-15
DC-1+
RTN OUT-1
+-
+ dc
+ dc
+ dc
+ dc
Input 00
Input 01
Input 02
Input 03
Input 04
Input 05
Input 06
Input 07
Input 08
Input 09
Input 10
Input 11
Input 12
Input 13
Input 14
Input 15
- dc
A
B
C
D
00
01
02
03
04
05
06
07
13
14
17 18
E
1
2
3
4
5
6
7
8
9
10
1110
1211
1312
14
15
1615
1716
19
20
21
22
23
24
25
1492-CONCAB005X 1756-IG16
Black
White
Red
Green
Orange
Blue
White/Black
Red/Black
Green/Black
Orange/Black
Blue/Black
Black/White
Red/White
Green/White
Blue/White
Black/Red
White/Red
Orange/Red
Blue/Red
Red/Green
1771-WH, WHF, WHFB Swing Arm
From 1771-IGD
Conversion Module Installation and Application Considerations
This Bul. 1492 cable consists of a cable wired to one 1756-IG16 RTB. Recommended cable lengths of 0.5M or 1.0M
(005=0.5M, 010=1.0M). See table 2 for other lengths.
The 1771-IGD module output current limits versus 1756-IG16 limits are as follows:
1771-IGD 1756-IG16 w/ 1492-CONCAB005X
a) Current/Point 122mA 110mA
b) Current/Module 500mA 110mA
The 1771-IGD is rated 5V DC. The 1756-IG16 is rated 4.5V to 5.5V DC.
Refer to your 1771-IGD and 1756-IG16 Installation Manual wiring schematics and diagrams for more details. Ensure
1756 output module ratings are not exceeded. [Reference Doc: 41171-004 (Version 00)]
PN-114278
DIR 10000060089 (Version 01)
Publication 1492-IN036B-EN-E
(4)
V. Wiring Diagrams
Conversion: 1771-OAD to 1756-OA16
WARNING
L1
L2
There are several key application considerations and system specifications (bottom of drawing) when
using these components (conversion module, cable and input module). Read and understand these
considerations before installation.
Conversion Module
1492-CM1771-LD006
Cable
10
9
1
2
3
4
5
6
7
8
11
12
13
14
15
16
17
18
20
19
L1-0
L2-0
OUT-0
OUT-1
OUT-2
OUT-3
OUT-4
OUT-5
OUT-6
OUT-7
OUT-8
OUT-9
OUT-10
OUT-11
OUT-12
OUT-13
OUT-14
OUT-15
L1-1
L2-1
Output
Device
L1
L1
L1
L1
Output 00
Output 01
Output 02
Output 03
Output 04
Output 05
Output 06
Output 07
Output 10
Output 11
Output 12
Output 13
Output 14
Output 15
Output 16
Output 17
L2
A
B
C
D
00
01
02
03
04
05
06
07
13
14
17 18
E
1492-CONCAB005X 1756-OA16
1
Black
2
White
Red
3
Green
4
Orange
5
Blue
6
7
White/Black
8
Red/Black
Green/Black
9
10
Orange/Black
Blue/Black
1110
Black/White
1211
Red/White
1312
Green/White
14
Blue/White
15
Black/Red
1615
White/Red
1716
Orange/Red
Blue/Red
19
Red/Green
20
21
22
23
24
25
1771-WH, WHF, WHFB Swing Arm
From 1771-OAD
Conversion Module Installation and Application Considerations
This Bul. 1492 cable consists of a cable wired to one 1756-OA16 RTB. Recommended cable lengths of 0.5M or 1.0M (005=0.5M,
010=1.0M). See table 2 for other lengths.
The 1771-OAD module output current limits versus 1756-OA16 limits are as follows:
1771-OAD 1756-OA16 w/ 1492-CONCAB005X
a) Current/Point 2A 0.5A
b) Current/Module 8A 4A
c) Surge Current/point 25A for 100ms 5A for 43ms
The L2 terminal (Terminal E) on the 1771-OAD module was an optional connection, but it is required for the 1756-OA16. This
connection must be added if it was not connected.
The 1771-OAD is rated 10V to 138V AC. The 1756-OA16 is rated 74V to 256V AC.
Refer to your 1771-OAD and 1756-OA16 Installation Manual wiring schematics and diagrams for more details. Ensure 1756 output
module ratings are not exceeded. [Reference Doc: 41170-935 (Version 01)]
PN-114278
DIR 10000060089 (Version 01)
Publication 1492-IN036B-EN-E
(5)
V. Wiring Diagrams (Cont’d)
Conversion: 1771-OBD to 1756-OB16E
WARNING
+
-
-
There are several key application considerations and system specifications (bottom of drawing) when
using these components (conversion module, cable and input module). Read and understand these
considerations before installation.
Conversion Module
1492-CM1771-LD006
Cable
10
9
1
2
3
4
5
6
7
8
11
12
13
14
15
16
17
18
20
19
DC-0+
RTN OUT-0
OUT-0
OUT-1
OUT-2
OUT-3
OUT-4
OUT-5
OUT-6
OUT-7
OUT-8
OUT-9
OUT-10
OUT-11
OUT-12
OUT-13
OUT-14
OUT-15
DC-1+
RTN OUT-1
dc Output
Device
+
+ dc
+ dc
+ dc
+ dc
Output 00
Output 01
Output 02
Output 03
Output 04
Output 05
Output 06
Output 07
Output 10
Output 11
Output 12
Output 13
Output 14
Output 15
Output 16
Output 17
L2
A
B
C
D
00
01
02
03
04
05
06
07
1
2
3
4
5
6
7
8
9
10
1110
1211
1312
13
14
1514
15
16
16
17
17 18
19
E
20
21
22
23
24
25
1492-CONCAB005X 1756-OB16E
Black
White
Red
Green
Orange
Blue
White/Black
Red/Black
Green/Black
Orange/Black
Blue/Black
Black/White
Red/White
Green/White
Blue/White
Black/Red
White/Red
Orange/Red
Blue/Red
Red/Green
1771-WH, WHF, WHFB Swing Arm
From 1771-OBD
Conversion Module Installation and Application Considerations
This Bul. 1492 cable consists of a cable wired to one 1756-OA16 RTB. Recommended cable lengths of 0.5M or 1.0M (005=0.5M,
010=1.0M). See table 2 for other lengths.
The 1771-OBD module output current limits versus 1756-OB16E limits are as follows:
1771-OBD 1756-OB16E w/ 1492-CONCAB005X
a) Current/Point 2A 1A
b) Current/Module 8A 4A
c) Surge Current/point 4A for 10ms 2A for 10ms
The 1771-OBD has a single 10A, 250V rectifier fuse (1/4 x 1 1/4 inch). The 1756-OB16E is electronically fused per
group. Refer to the 1756-OB16E Installation Manual for details on electronic fusing.
The 1771-OBD is rated 10V to 60V DC. The 1756-OB16E is rated 10V to 31.2V DC. If the load source voltage is greater than 30V
DC, then use the 1756-OC8 with the 1492-CM1771-LD008F conversion module.
Refer to your 1771-OBD and 1756-OB16E Installation Manual wiring schematics and diagrams for more details. Ensure 1756 output
module ratings are not exceeded. [Reference Doc: 41170-936 (Version 01)]
PN-114278
DIR 10000060089 (Version 01)
Publication 1492-IN036B-EN-E
(6)
V. Wiring Diagrams (Cont’d)
Conversion: 1771-OBDS to 1756-OB16E
WARNING
+
-
dc Output
Device
There are several key application considerations and system specifications (bottom of drawing) when
using these components (conversion module, cable and input module). Read and understand these
considerations before installation.
Conversion Module
1492-CM1771-LD006
Cable
10
9
1
2
3
4
5
6
7
8
11
12
13
14
15
16
17
18
20
19
DC-0+
RTN OUT-0
OUT-0
OUT-1
OUT-2
OUT-3
OUT-4
OUT-5
OUT-6
OUT-7
OUT-8
OUT-9
OUT-10
OUT-11
OUT-12
OUT-13
OUT-14
OUT-15
DC-1+
RTN OUT-1
+-
+ dc
+ dc
+ dc
+ dc
Output 00
Output 01
Output 02
Output 03
Output 04
Output 05
Output 06
Output 07
Output 10
Output 11
Output 12
Output 13
Output 14
Output 15
Output 16
Output 17
- dc
A
B
C
D
00
01
02
03
04
05
06
07
13
17 18
E
1492-CONCAB005X 1756-OB16E
1
Black
2
White
Red
3
Green
4
Orange
5
Blue
6
7
White/Black
8
Red/Black
Green/Black
9
10
Orange/Black
Blue/Black
1110
Black/White
1211
Red/White
1312
Green/White
14
Blue/White
1514
Black/Red
1615
White/Red
1716
Orange/Red
Blue/Red
19
Red/Green
20
21
22
23
24
25
1771-WH, WHF, WHFB Swing Arm
From 1171-OBDS
Conversion Module Installation and Application Considerations
This Bul. 1492 cable consists of a cable wired to one 1756-OB16E RTB. Recommended cable lengths of 0.5M or 1.0M
(005=0.5M, 010=1.0M). See table 2 for other lengths.
The 1771-OBDS module output current limits versus 1756-OB16E limits are as follows:
1771-OBDS 1756-OB16E w/ 1492-CONCAB005X
a) Current/Point 1A 1A
b) Current/Module 8A 8A
c) Surge Current/Point 4A for 10ms 2A for 10ms
The 1771-OBDS has a single 12A, 250V rectifier fuse (1/4 x 1-1/4 inch). The 1756-OB16E is electronically fused per
group. Refer to the 1756-OB16E Installation Manual for details on electronic fusing.
The 1771-OBDS is rated 10V to 40V DC. The 1756-OB16E is rated 10V to 31.2V DC. If the load source voltage is greater
than 30V DC, then use the 1756-OC8 with the 1492-CM1771-LD008F conversion module.
Refer to your 1771-OBDS and 1756-OB16E Installation Manual wiring schematics and diagrams for more details. Ensure
1756 output module ratings are not exceeded. [Reference Doc: 41171-005 (Version 00)]
PN-114278
DIR 10000060089 (Version 01)
Publication 1492-IN036B-EN-E
(7)
V. Wiring Diagrams (Cont’d)
Conversion: 1771-OGD to 1756-OG16
+
-
WARNING
dc Output
Device
There are several key application considerations and system specifications (bottom of drawing) when
using these components (conversion module, cable and input module). Read and understand these
considerations before installation.
Conversion Module
1492-CM1771-LD006
Cable
10
9
1
2
3
4
5
6
7
8
11
12
13
14
15
16
17
18
20
19
DC-0+
RTN OUT-0
OUT-0
OUT-1
OUT-2
OUT-3
OUT-4
OUT-5
OUT-6
OUT-7
OUT-8
OUT-9
OUT-10
OUT-11
OUT-12
OUT-13
OUT-14
OUT-15
DC-1+
RTN OUT-1
+-
+ dc
+ dc
+ dc
+ dc
Output 00
Output 01
Output 02
Output 03
Output 04
Output 05
Output 06
Output 07
Output 10
Output 11
Output 12
Output 13
Output 14
Output 15
Output 16
Output 17
- dc
A
B
C
D
00
01
02
03
04
05
06
07
13
14
17 18
E
1
2
3
4
5
6
7
8
9
10
1110
1211
1312
14
15
1615
1716
19
20
21
22
23
24
25
1492-CONCAB005X 1756-OG16
Black
White
Red
Green
Orange
Blue
White/Black
Red/Black
Green/Black
Orange/Black
Blue/Black
Black/White
Red/White
Green/White
Blue/White
Black/Red
White/Red
Orange/Red
Blue/Red
Red/Green
1771-WH, WHF, WHFB Swing Arm
From 1171-OGD
Conversion Module Installation and Application Considerations
This Bul. 1492 cable consists of a cable wired to one 1756-OG16 RTB. Recommended cable lengths of 0.5M or 1.0M
(005=0.5M, 010=1.0M). See table 2 for other lengths.
The 1771-OGD module output current limits versus 1756-OG16 limits are as follows:
1771-OGD 1756-OG16 w/ 1492-CONCAB005X
a) Current/Point 1mA 24mA
b) Current/Module 310mA 384mA
The 1771-OGD has a single 10A, 250V rectifier fuse (1/4 x 1-1/4 inch). The 1756-OG16 is electronically fused per
group. Refer to the 1756-OG16 Installation Manual for details on electronic fusing.
The 1771-OGD is rated 10V to 60V DC. The 1756-OG16 is rated 10V to 31.2V DC.
Refer to your 1771-OGD and 1756-OG16 Installation Manual wiring schematics and diagrams for more details. Ensure
1756 output module ratings are not exceeded. [Reference Doc: 41171-006 (Version 00)]
PN-114278
DIR 10000060089 (Version 01)
Publication 1492-IN036B-EN-E
(8)
V. Wiring Diagrams (Cont’d)
Conversion: 1771-OMD to 1756-OA16
WARNING
L1
L2
LOAD
There are several key application considerations and system specifications (bottom of drawing) when
using these components (conversion module, cable and input module). Read and understand these
considerations before installation.
Conversion Module
1492-CM1771-LD006
Cable
10
9
1
2
3
4
5
6
7
8
11
12
13
14
15
16
17
18
20
19
1756-OA16
L1-0+
L2-0
OUT-0
OUT-1
OUT-2
OUT-3
OUT-4
OUT-5
OUT-6
OUT-7
OUT-8
OUT-9
OUT-10
OUT-11
OUT-12
OUT-13
OUT-14
OUT-15
L1-1+
L2-1
+-
L1
L1
L1
L1
Output 00
Output 01
Output 02
Output 03
Output 04
Output 05
Output 06
Output 07
Output 10
Output 11
Output 12
Output 13
Output 14
Output 15
Output 16
Output 17
L2
A
B
C
D
00
01
02
03
04
05
06
07
1
2
3
4
5
6
7
8
9
10
1110
1211
1312
13
14
1514
15
16
1716
17 18
19
E
20
21
22
23
24
25
1492-CONCAB005X
Black
White
Red
Green
Orange
Blue
White/Black
Red/Black
Green/Black
Orange/Black
Blue/Black
Black/White
Red/White
Green/White
Blue/White
Black/Red
White/Red
Orange/Red
Blue/Red
Red/Green
1771-WH, WHF, WHFB Swing Arm
From 1771-OMD
Conversion Module Installation and Application Considerations
This Bul. 1492 cable consists of a cable wired to one 1756-OA16 RTB. Recommended cable lengths of0.5M or 1.0M
(005=0.5M, 010=1.0M). See table 2 for other lengths.
The 1771-OMD module output current limits versus 1756-OA16 limits are as follows:
1771-OMD 1756-OA16 w/ 1492-CONCAB005X
a) Current/Point 2A 0.5A
b) Current/Module 8A 4A
c) Surge Current/Point 25A for 100ms 5A for 43ms
The 1771-OMD has a single 10A, 250V rectifier fuse (1/4 x 1 1/4 inch). The 1756-OA16 has a mechanical 3.15A @250V AC
slow blow fuse. Refer to the 1756-OA16 Installation Manual for details on electronic fusing.
The 1771-OMD is rated 184V to 250V AC. The 1756-OA16 is rated 74V to 265V AC. If the load source voltage is greater than
30V DC, then use the 1756-OC8 with the 1492-CM1771-LD008F conversion module.
Refer to your 1771-OMD and 1756-OA16 Installation Manual wiring schematics and diagrams for more details. Ensure 1756
output module ratings are not exceeded. [Reference Doc: 41171-007 (Version 00)]
PN-114278
DIR 10000060089 (Version 01)
Publication 1492-IN036B-EN-E
(9)
V. Wiring Diagrams (Cont’d)
Conversion: 1771-OND to 1756-ON8 (2)
WARNING
There are several key application considerations and system specifications (bottom of drawing) when
using these components (conversion module, cable and input module). Read and understand these
considerations before installation.
Cable
Output 00
Output 01
L1
Output 02
Output 03
Output 04
L2
Output 05
Output 06
Output 07
Output
Device
Output 10
Output 11
Output 12
Output 13
Output 15
1771-WH, WHF Swing Arm
From 1771-OND
L1
L1
L1
L1
Output 14
Output 16
Output 17
L2
Conversion Module
1492-CM1771-LD006
A
B
C
D
00
01
02
03
04
05
06
07
12
13
17 18
E
1
2
3
4
5
6
7
8
9
10
1110
1211
13
14
1514
1615
1716
19
20
21
22
23
24
25
1492-CONCAB005S2
Black
White
Red
Green
Orange
Blue
White/Black
Red/Black
Green/Black
Orange/Black
Blue/Black
Black/White
Red/White
Green/White
Blue/White
Black/Red
White/Red
Orange/Red
Blue/Red
Red/Green
Conversion Module Installation and Application Considerations
This Bul. 1492 cable consists of a cable wired to two 1756-ON8 RTB. Recommended cable lengths of
0.5M or 1.0M (005=0.5M, 010=1.0M). See table 2 for other lengths.
The 1771-OND module output current limits versus (2)1756-ON8 limits are as follows:
1771-OND 1756-ON8 w/ 1492-CONCAB005S2
a) Current/Point 2A 2A
b) Current/Module 8A 5A
c) Surge Current/Point 25A for 100ms 20A for 43ms
The L2 terminal (Terminal E) on the 1771-ON8 module was an optional connection, but it is required for the 1756-OA16.
This connection must be added if it was not connected.
The 1771-OND is rated 24V AC. The 1756-ON8 is rated 10V to 30V AC.
Refer to your 1771-OND and 1756-ON8 Installation Manual wiring schematics and diagrams for more details. Ensure
1756 output module ratings are not exceeded. [Reference Doc: 41171-008 (Version 00)]
11
13
15
17
11
13
15
17
1
10
1
3
5
7
14
16
18
20
10
3
5
7
14
16
18
20
2
4
6
8
19
2
4
6
8
19
9
9
1756-ON8
L1-0
L1-0
L1-0
L1-0
L1-0
NOT USED
OUT-0
OUT-1
OUT-2
OUT-3
OUT-4
OUT-5
OUT-6
OUT-7
NOT USED
L1-1
L1-1
L1-1
L1-1
L1-1
1756-ON8
L1-0
L1-0
L1-0
L1-0
L1-0
NOT USED
OUT-8
OUT-9
OUT-10
OUT-11
OUT-12
OUT-13
OUT-14
OUT-15
NOT USED
L1-1
L1-1
L1-1
L1-1
L1-1
PN-114278
DIR 10000060089 (Version 01)
Publication 1492-IN036B-EN-E
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PN-114278
DIR 10000060089 (Version 01)
Publication 1492-IN036B-EN-E
(11)
PN-114278
DIR 10000060089 (Version 01)
Publication 1492-IN036B-EN-E
Printed in U.S.A.
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