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.
2IO series
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 444816161616 24
Number of Module Positions 444816161616 24
Field Terminals: Screw Terminals XXXXXXXX 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
456789
1
2
34
56
78
9
0.75
(19.05)
LOGIC INPUT/OUTPUT
BARRIER
STRIP
PULL-UP
RESISTOR
3.3k Ω
TYPICAL
LED
123
45
67 89
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
123
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
98
123
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.
