
General Specifi cations
Operating Temperature 32° to 131°F (0° to 55°C)
Storage Temperature 13° to 185°F (-25° to 85°C)
Relative Humidity 5% to 95%, non-condensing
Environment Air No corrosive gases permitted
Mounting/Orientation
Restrictions
35mm DIN rail/None
Vibration conforms to EN 60068-2-6
Shock conforms to EN 60068-2-27, EN 60068-2-29
Noise Immunity conforms to EN 61000-6-2/ EN61000-6-4
Protection Class IP20
Weight 70g
Dimensions (WxHxD) 12 x 100 x 68.8 mm (0.47 x 3.94 x 2.71 in)
Agency Approvals UL File No. E157382, CE
PX-249 Output Terminal Specifi cations
Outputs Per Terminal 16
Commons Per Terminal Field wired
Output Type Sinking
Output Data Bytes Used 2-bytes
Output Power Source
Requires external 24VDC power
source
Current Consumption (from load
voltage)
Typ. 35mA + load
Operating Voltage 24VDC ( -15%/+20%)
Maximum Load Current
0.5A per channel (Short Circuit
Protected)
On Voltage Drop 0.12 VDC @ 0.5A
Maximum Leakage Current 75μA
Maximum Inrush Current 3.5A
Maximum Short-circuit voltage 36V
Load Type Resistive, inductive, lamp
Current Consumption (from I/O
Bus)
Typ. 45mA
Reverse Voltage Protection Yes, DC only
Electrical Isolation 500V
ms
(I/O bus/fi eld potential)
Heat Dissipation 1W max
Off/On Response 0.45μs
On /Off Response 3.3μs
Adjacent Mounting on Bus
Terminals with Power Contact
Yes, DC only
Adjacent Mounting on Bus
Terminals without Power Contact
No
Passes Terminal Bus Power Yes
Passes PE Bus No
Status Indicators 16, indicates output is on
PX-249 – Sixteen-point
0.5A, 24VDC Discrete
Output Terminal
The PX-249 DC Output Terminal provides sixteen 24VDC 0.5A short-circuit
protected sourcing outputs with LED
status. Use with the Protos X
PX-249
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
16
1
9
2
10
3
11
4
12
5
13
6
14
7
15
8
16
Protos XTM is a trademark of Automationdirect.com Incorporated
System.
TM
I/O
www.automationdirect.com
Signal LEDs
1...8
Output 1
Output 2
Output 3
Terminal power
bus contact
+24VDC
Output 4
Output 5
Terminal power
bus contact
0V
Output 6
Output 7
Output 8
Output LEDOutput LED
Output 1Output 9
Output 2Output 10
Output 3
Output 4Output 12
Output 5
Output 6Output 14
Output 7
Output 8Output 16
Tech Support 770-844-4200Sales 800-633-0405
1
3
5
7
2
4
6
8
PX-249
1
2
3
4
5
6
7
8
1
2 10
3
4 12
5
6 14
7
8 16
11
13
15
9
9
10
11
12
13
14
15
16
10
12
14
16
9
11
13
15
Output 11
Output 13
Output 15
Signal LEDs
9...16
I/O Bus
contacts
Output 9
Output 10
Output 11
Output 12
DIN rail
release
tab
Output 13
Output 14
Output 15
Output 16
L
L
If external
power supply,
connect
common (–)
to same
common
as terminal
power bus
(+)
PROTOSx REVISED Insert small template 10-13-2014_Tri-fold.indd 1 10/17/2014 1:36:47 PM

MOUNTING
Firmly pull DIN Rail Release Tab
to unlatch unit from rail.
Where applicable, rotate Locking
Wheel to unlock Bus Coupler
For system assembly, rst attach a bus coupler by
snapping onto 35mm DIN rail and securing into position using the DIN rail locking wheel (where applicable)
located on the left side of the coupler. To add a bus
terminal, insert unit onto right side of bus coupler using
the tongue and groove at the top and bottom of the
unit, pressing gently until it snaps onto the DIN rail.
A proper connection cannot be made by sliding the
units together on the DIN rail. When correctly installed,
no signicant gap can be seen between the attached
units. Bus connection is made through the six slide
contacts located on the upper right side of the units.
Add up to 64 bus terminals per bus coupler, including a
bus end terminal.
Insert unit using tongue and groove
molded guide and press gently until
it becomes firmly seated on DIN rail.
Where applicable, rotate Locking
Wheel to lock Bus Coupler
Align tab with
molded guide
ra.
REMOVAL
A locking mechanism prevents individual units from
being pulled off. For bus terminal removal, pull the
orange DIN rail release tab rmly to unlatch the unit
from the rail. If attached to other terminal units, slide
unit forward until released. For bus couplers with
locking wheels, release the DIN rail locking wheel, then
pull rmly on DIN rail release tab.
WARNING
To minimize the risk of potential safety problems, you
should follow all applicable local and national codes
that regulate the installation and operation of your
equipment. These codes vary from area to area and it is
your responsibility to determine which codes should be
followed, and to verify that the equipment, installation,
and operation are in compliance with the latest revision
of these codes.
Equipment damage or serious injury to
personnel can result from the failure to follow all
applicable codes and standards. We do not guarantee the products described in this publication are
suitable for your particular application, nor do we
assume any responsibility for your product design,
installation, or operation.
If you have any questions concerning the installation or operation of this equipment, or if you need
additional information, please call Technical Support at
770-844-4200.
This publication is based on information that was
available at the time it was printed. At AutomationDirect.
com® we constantly strive to improve our products and
services, so we reserve the right to make changes to
the products and/or publications at any time without
notice and without any obligation. This publication may
also discuss features that may not be available in
certain revisions of the product.
WIRING CONNECTION
Wire connection is made through a spring clamp style
terminal. This terminal is designed for a single-conductor
solid or stranded wire. Wire connection is made by rmly
pushing the screwdriver into the screwdriver slot, inserting
the wire into the wire slot and removing the screwdriver,
locking the wire into position.
Screwdrive
Slot
IMPORTANT
For complete assembly instructions and compatibility
between terminals see the PX-USER-M manual available
for free download at www.automationdirect.com.
PROTOSx REVISED Insert small template 10-13-2014_Tri-fold.indd 2 10/17/2014 1:36:51 PM
HOT SWAP NOT PERMITTED
Always remove power from the system before inserting or
removing bus terminals or couplers as failure to do so could
cause malfunction or damage to the terminals, couplers or
other connected devices.
Document Name Edition/Revision Date
PX-249-DS 1st ED. 9/15/2014
Copyright 2014, AutomationDirect.com Incorporated/All Rights Reserved Worldwide.
www.automationdirect.comSales 800-633-0405
Wiring Specications
Connection Type Spring Clamp Terminals
Wire Gauge / Wire Cross Section 28-14 AWG / 0.08 - 2.5mm
Screwdriver Width
Wire Stripping Length 8mm
Tech Support 770-844-4200
Wire Slot
2
2.5mm (0.10) such as our
TW-SD-MSL-2