PXA40-T SIEMENS

PXA40-T Siemens Basis unit

Brand：SIEMENS Model number：PXA40-T

Country of origin: Germany Product weight：0.55kg

HS code：8517623990

Product Details：

Product Dimensions：

The PXA40-T is a plug-in option module primarily used with modular series automation stations such as the PXC00.D, PXC50.D, PXC100.D, and PXC200.D. Its main function is to provide a dedicated modem interface for remote management. By installing this card into the modular controller, users can establish a Point-to-Point (PTP) connection over public or private telephone lines, allowing for the transmission of data, alarms, and control commands without the need for a local area network (LAN) connection at the controller's site.

Product Parameters

Product Number: PXA40-T (Stock No: BPZ:PXA40-T)
Product Category: Option Module / Modem Extension Card
System Compatibility: Desigo PX Modular Series (PXC..D)
Communication Interface: Integrated Modem for remote access
Communication Protocol: Supports PTP (Point-to-Point) communication
Operating Voltage: Powered internally via the automation station's backplane
Degree of Protection: IP20 (Protected against solid objects up to $12.5 \text{ mm}$ , no water protection)
Net Weight: Approximately $0.053 \text{ kg}$
Mounting: Direct insertion into the option slot of a modular PXC controller
Ambient Conditions: Designed for indoor use in controlled industrial or commercial environments

Product Advantages

Remote Accessibility: Enables remote diagnostics, programming, and monitoring of building systems, which significantly reduces the need for on-site maintenance visits.
Seamless Integration: Designed specifically for the Desigo PX platform, ensuring high reliability and easy "plug-and-play" installation without complex external wiring for power.
Cost-Efficient Management: Ideal for remote or decentralized locations where a permanent internet or Ethernet infrastructure might be unavailable or too costly to install.
Alarm Handling: Enhances system safety by allowing the automation station to send critical alarms to remote management stations via telephone networks.
Industrial Reliability: Built to Siemens' industrial standards, offering stable performance even in demanding building automation environments.

Important Considerations

Compatibility Check: The PXA40-T is only compatible with the modular series (PXC..D). It cannot be used with the compact series or non-modular controllers.
Power Safety: Always ensure that the power supply to the modular automation station is completely disconnected before inserting or removing the option module to avoid electrical damage.
Electrostatic Discharge (ESD): Follow standard ESD precautions when handling the module, as sensitive electronic components can be damaged by static electricity.
Installation Environment: Since the module is rated IP20, it must be installed within a suitable protective housing or control cabinet that provides protection against moisture and excessive dust.
Connection Security: Ensure that the modem/phone line connection is properly configured and secured to prevent unauthorized access to the building management system.

Product Applications

The PXA40-T is widely used in various building automation scenarios where remote connectivity is required.

Remote HVAC Monitoring: Used in commercial buildings to monitor heating, ventilation, and air conditioning systems from a central operations center.
Remote Servicing: Allows service providers to perform software updates or parameter adjustments remotely, improving response times for system optimization.
Decentralized Facilities: Ideal for pump stations, remote substations, or small satellite buildings where local network infrastructure is minimal.
Alarm Routing: Used to transmit high-priority system alerts (such as fire alarms or mechanical failures) to a remote PC or pager system via a modem connection.
Legacy Network Integration: Provides a communication path for older sites that rely on telephone lines rather than IP-based networks for remote management.

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