This product is unavailable for sale and has been discontinued. Please refer to this category: Modems.
Overview of Westermo TD-23 HV Modem
The TD-23 is a simple industrial modem designed to allow cost-effective and easy multi-drop access (max 16 drops) to
legacy serial industrial equipment. Any asynchronous word format can be used with either RS-232 or 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 are both low-voltage and high-voltage power versions 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-turn-off 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.
Westermo TD-23 HV Features
- 1200 bit/s Multidrop Modem
- RS-232 and RS-422/485 interface
- Up to 25 km transmission
- Extended temperature –25°C to 70°C
- Extensive EMC approvals and tri-galvanic isolation
- Low voltage and high voltage versions for DC
and AC powering
- RTS-CTS delay function 23 ms to 60 ms
- V.23 1200 bit/s FSK modem
- No Software setup – DIP switch only
- Transmission power selectable: 3 dBm to –12 dBm
- Receiver sensitivity: -23 dBm to -45 dBm
Why Rockford Is Your Trusted Westermo Supplier?
Experience the easiest way to buy the Westermo TD-23 HV Industrial Multidrop Modem in the Middle East, Qatar, by submitting an inquiry form. Our sales experts will help you with information about the price and conditions for a wonderful experience.
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