58AXIS 241QA/AXIS 241SA - Unit connectors

The I/O terminal connector

This section describes the pinout and interface support provided by the 12-pin I/O terminal connector, which includes:

•4 digital transistor outputs

•4 digital inputs

•an RS-485 interface

•auxiliary power and GND

The terminal connector is used in applications for e.g. motion detection, event triggering, time lapse recording, alarm notification via email, image storage to FTP locations, etc.

•Inputs - e.g. a push button. If the button is pressed, the state changes, and the input will be active (shown under Event Configuration > Port Status).

•Outputs - e.g. an alarm device that can be activated from Output buttons on the Live View page or as an action to an Event Type. The output will show as active (in Event Configuration > Port Status), if the device is activated.

Pin

Function

Description

 

 

 

1

Auxiliary DC Power Input

7-20 VDC/min 8W. Electrically connected in parallel with the power

 

 

connector, this provides an auxiliary connection for mains power to

 

 

the unit. If the product is powered via this pin, use a fuse (rating: 1A

 

 

Slow).

 

 

This pin can also be used to power auxiliary equipment, 9vDC max

 

 

100mA.

 

 

 

2

GND

ground

 

 

 

3

Digital Input 1

Connect to GND to activate or leave floating (or unconnected) to

 

 

deactivate.

4

Digital Input 2

 

 

 

5

Digital Input 3

 

 

 

 

6

Digital Input 4

 

 

 

 

7

Transistor Output

With a maximum load of 100mA and maximum voltage of 24V DC, this

 

 

output has an open-collector NPN transistor with the emitter

8

Transistor Output

 

 

connected to pin 2 (GND). If it is to be used with an external relay, a

9

Transistor Output

diode must be connected in parallel with the load for protection

 

 

10

Transistor Output

against any voltage transients.

 

 

 

 

 

11

RS-485 - A (non-inverting)

A half-duplex RS-485 interface for controlling auxiliary equipment,

 

 

e g. PTZ devices.

12

RS-485 - B (inverting)

 

 

 

The AXIS 241QA/AXIS 241SA includes one (green) 12-pin connector block. Connect input/output devices to this block:

1.Loosen the corresponding screw on top of the pin on the connector block (see the table above to determine which pin to use).

2.Push the cable into the connector block and secure it by fastening the screw.

3.Once all devices are connected, connect the connector block to the video server’s terminal connector.

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Axis Communications 241SA user manual I/O terminal connector, Pin Function Description
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241SA specifications

Axis Communications, a leader in network video solutions, offers a diverse range of high-performance cameras designed to meet various security needs. One of its notable models is the Axis 241SA video encoder. This device embodies the company's commitment to providing advanced surveillance technology with cutting-edge features.

The Axis 241SA is an ideal solution for organizations looking to enhance their security infrastructure by integrating analog cameras into a digital network. With its ability to support multiple video formats, this video encoder enables operators to convert traditional analog video signals into digital streams efficiently. The device supports both Motion JPEG and MPEG-4 video compression, providing flexibility in terms of image quality and bandwidth use. Users can easily adjust the settings to maximize storage efficiency and optimize network performance.

One of the standout characteristics of the Axis 241SA is its robust support for Power over Ethernet (PoE). This feature simplifies installation by allowing the device to receive power and transmit video data through a single Ethernet cable, reducing the need for additional power sources and streamlining setup processes. The encoder can accommodate four analog video inputs, allowing multiple cameras to be connected, making it a cost-effective solution for small to medium-sized installations.

Furthermore, the Axis 241SA incorporates advanced security features to safeguard video streams and ensure data integrity. The device supports HTTPS encryption and password protection, preventing unauthorized access to camera feeds and configuration settings. This level of security is crucial in today’s digital landscape where cyber threats are prevalent.

The device also comes equipped with a user-friendly web interface, simplifying the operation and configuration process for users. Compatible with various video management software (VMS) solutions, the Axis 241SA allows for seamless integration into existing security systems, enhancing overall monitoring capabilities.

In summary, the Axis Communications 241SA video encoder is a powerful and versatile tool for transitioning from analog to digital surveillance systems. With its support for multiple video formats, PoE capability, strong security measures, and user-friendly interface, the Axis 241SA meets the demands of modern security environments while providing peace of mind to users. It presents an invaluable asset for businesses and organizations aiming to bolster their security infrastructure without compromising on performance or efficiency.
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