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Westermo TD-23 HV With Relay Industrial Multidrop Modem

Westermo TD-23 HV With Relay Industrial Multidrop Modem
Westermo TD-23 HV With Relay Industrial Multidrop Modem
Westermo TD-23 HV With Relay Industrial Multidrop Modem
Westermo TD-23 HV With Relay Industrial Multidrop Modem
Westermo TD-23 HV With Relay Industrial Multidrop Modem

  • 1 x Leased Line (300 bit/s to 1200 bit/s, Detachable screw terminal)
  • 1 x RS-232 Port (300 bit/s to 1200 bit/s, D-sub female or Detachable screw terminal)
  • 1 x RS-422/485 Port (300 bit/s to 1200 bit/s, Detachable screw terminal)
  • 1 x Relay (Up to 48 VDC / 60 VDC, Detachable screw terminal)
  • DIN-rail mount installation design
  • IP20-rated PC / ABS body material
  • 110 to 250 VDC / 95 to 240 VAC input power (Wide Range 48 to 300 VDC / 85.5 to 264 VAC)
  • -25 to +70ºC operating temperature range

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Datasheet User Manual
  • Operating Temperature (-25 to 70°C)
  • Relative Humidity (5% to 95% RH)
  • IP protection (IP20)
  • Shock (IEC 60068-2-27)
  • Vibration (IEC 60068-2-6)
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Tags: Modems , Multidrop Modems , Line Sharing Modems , Industrial Multidrop Modems , Industrial Data Communications , Industrial Modems , Westermo TD-23

The TD-23 is a simple industrial modem designed to allow cost-effective and easy multidrop access (max 16 drops) to legacy serial industrial equipment. Any asynchronous word format can be used from either the RS-232 or the RS-485 protocols. Designed with industrial locations in mind, the modem can operate in extremes of temperature and electromagnetic fields. The complete galvanic separation of all interfaces ensures earth loops and transients do not interfere with communication. There is both a low-voltage and high-voltage power version available.

The modem is specifically designed for legacy V.23 systems at 300 to 1200 bit/s and can be used either for multidrop applications or as a driver for a “push to talk” VHF radio system (relay version). The unit’s transmitter can be controlled by hardware handshaking, but can also use the auto-turning time functionality built in. All options are configurable by DIP switch, meaning that no laptop is needed for configuration. Communication can be tuned for optimum performance by increasing or reducing both receiver sensitivity and transmit power. A DCD and RXD filter also helps to improve performance with some older protocols.


End of Life Product - No Replacement

Please note that the TD-23 has been phased out. You can explore other types of modems in the Modems.


Easy World Automation offers the easiest way to buy the Westermo TD-23 HV With Relay Industrial Multidrop Modem in the Middle East (UAE (Dubai), KSA (Al Khobar, Riyadh), and Oman) at the lowest price through online inquiring. Our sales experts will contact you to fulfill all your industrial automation needs.

3g modem : Interface
SIM card slot No
Ethernet Ports No
USB No
Digital Input and Output No
Serial port Yes : 1 x RS-232 Port (300 bit/s to 1200 bit/s, D-sub female or Detachable screw terminal), 1 x RS-422/485 Port (300 bit/s to 1200 bit/s, Detachable screw terminal)
Alert Output No
Band Options -
Cellular Standards -
Cellular Antenna Connectors No
WLAN Standards No
WLAN Antenna Connector No
GPS Antenna Connector No
3g modem : Radio specifications
Radio Connection type -
Maximum data transfer speed of 2G -
Maximum data transfer speed of 3G -
Maximum data transfer speed of 4G -
WiFi Radio Frequency -
3g modem : Software Specifications
Routing Redundancy -
VPN -
Firewall -
Time Management -
Management -
3g modem : General
LED Indicators PWR, RD, TD, RTS, CTS, DCD
MTBF -
Operating mode Multidrop Modem
3g modem : Standards and protocols
Protocols Transparent, V23hdx, V23fdx
3g modem : Features and capabilities
Send and receive SMS No
3g modem : Security
Security and Encryption No
Authentication No
3g modem : Power Requirements
Power Connector Detachable screw terminal
Power Consumption (Output Adapter) -
Input Voltage 110 to 250 VDC, 95 to 240 VAC (Wide Range 48 to 300 VDC / 85.5 to 264 VAC)
POE Support No
Input Current 10 mA @ 110 VDC, 7 mA @ 250 VDC, 30 mA @ 95 VAC, 23 mA @ 240 VAC
Reverse Polarity Protection Supported
3g modem : Buttons
Power button No
Reset No
3g modem : Physical Characteristics
Installation DIN-rail mounting
Dimensions 55 x 100 x 132 mm (2.16 x 3.93 x 5.19 in)
Housing PC / ABS
Weight 0.25 kg
Operating Temperature –25 to +70°C (–13 to +158°F)
Storage Humidity 5 to 95% relative humidity
Storage Temperature –30 to +70°C (–22 to +158°F)
Type of Use Industrial environment
Standards and Certifications Ingress protection: IP20; EMC: EN 61000-6-1, Immunity residential environments, EN 61000-6-2, Immunity industrial environments, EN 61000-6-3, Emission residential environments, EN 61000-6-4, Emission for industrial environments, IEC 62236-4, Railway signalling and telecommunications apparatus; Safety: EN 60950-1, IT equipment; Shock: IEC 60068-2-27; Vibration: IEC 60068-2-6

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