1114

Dimensions are shown for

reference purposes only.

Dimensions are in inches over

(millimeters) unless otherwise

specified.

Specifications and availability

subject to change.

P&B

Catalog 1308242

Issued 3-03 (PDF Rev. 8-04)

www.tycoelectronics.com

Technical support:

Refer to inside back cover.

Mounting Boards for

Input/Output Modules

• LED status indicators, plug-in fuses & pull-up resistors

• Card edge logic connections (2IO8, 2IO16 & 2IO24)

• Screw terminal logic connections (2IO4A, 2IO4B, 2IO4C, 2IO16A,

2IO16B & 2IO16C)

• Screw terminals for field wiring

• UL recognized/CSA certified for 125V max. with 5A fuses;

250V max. with #22 solid copper jumper wire instead of fuses

File E61482

File LR15734-93

Ordering Information – Boldface items listed below are more likely to be maintained in stock by authorized distributors.

Part Number

2IO4A

2IO4B

2IO4C

2IO8

2IO16

2IO16A

2IO16B

2IO16C

2IO24

Number of I/O Channels

4448

16

16

16

16

24

Number of Module Positions

4448

16

16

16

16

24

Field Terminals: Screw Terminals

XXXX

X

XXX

X

Logic Terminals: Screw Terminals

X

X

X

X

X

X

Logic Terminals: 26-pin card edge connector

X

Logic Terminals: 50-pin card edge connector

X

X

X

Designed for neg. true logic; one logic voltage

X

X

X

X

X

Designed for neg. or pos. true logic; mult. logic voltages

X

X

Designed for neg. true logic; mult. logic voltages

X

X

2IO4C Schematic

Designed to operate with neg. true logic (active low) systems & different logic voltages.

POWER BARRIER BLOCK

9 TERMINAL 2 PLACES

FUSE

5 AMP

PULL-UP

RESISTOR

3.3k

Ω

SIGNAL

BARRIER

BLOCK

4.50

(114.3)

4.00

(101.6)

0.25

(6.35)

3.00

(76.20)

3.50

(88.90)

LED STATUS

INDICATOR

2.20 MAX. TO TOP

(55.8) OF MODULES

.150 DIA.

(3.81)

RIVETED STANDOFF

THRU HOLE

4 PLACES

1

2 3 45 6 7 89

0.75

(19.05)

LOGIC INPUT/OUTPUT

BARRIER

STRIP

PULL-UP

RESISTOR

3.3k

Ω

TYPICAL

LED

12

3

45

67

8

9

3

4

5

+ LOGIC

FIELD INPUT/OUTPUT SIDE IS IDENTICAL TO 2104A

FIELD INPUT/OUTPUT SIDE IS IDENTICAL TO 2104A

LOGIC INPUT/OUTPUT

BARRIER

STRIP

PULL-UP

RESISTOR

3.3k

Ω

TYPICAL

LED

12

3

45

67

89

3

4

5

LOGIC

GND.

2IO4A, 2IO4B & 2IO4C Outline Dimensions

Suggested Mating Connectors and Fuses

26-pin card edge connector

3M 3462-0001*

50-pin card edge connector

3M 3415-0001*

5 amp fuse

Littelfuse 251-005*

1 amp fuse**

Littelfuse 251-001*

* Or equivalent. Customer assumes ultimate responsibility for applicability.

** Used on 2IO24 only.

Designed to operate with either neg. or pos. true logic (active low or high) systems & different

logic voltages. (output modules only - input modules must be used in negative logic systems

only.)

2IO4B Schematic

FIELD INPUT/OUTPUT

BARRIER

STRIP

FUSE

5 AMP

TYP.

BARRIER

STRIP

LOGIC GND.

LOGIC INPUT/OUTPUT

PULL-UP

RESISTOR

3.3k

Ω

TYPICAL

LED

1

23

4

5

6

7

9

8

12

3

45

6

7

9

8

1

2

3

4

5

SPARE

+ LOGIC

Designed to operate with neg. true logic (active low) systems & one logic voltage.

2IO4A Schematic

Users should thoroughly review the technical data before selecting a product part

number. It is recommended that users also seek out the pertinent approvals files of the

agencies/laboratories and review them to ensure the product meets the requirements

for a given application.