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Please Note: Updated Monday, May 26, 2020 We are open for business as usual. Well, mostly usual. We hold and ship inventory locally as well as directly from manufacturers and from some marine distributors. We are doing our best to reflect inventory that is actually available, but inventory updates are slower than usual due to the changing work situations for all business. Additionally, we now have started to see longer than normal backorders from manufacturers. We recommend that if you need a product not to wait until the last minute to order, as inventory may be gone for a substantial period of time once they go on backorder. International orders may also take longer than normal to ship.
The SX14 Expander is an advanced version of its predecessor (XP15) with very low power consumption, hi-speed operation to 38,400 baud, and outputs that withstand indefinite short circuits. It provides a single opto-isolated input and four independent differential (RS-422) outputs which are also compatible with RS-232 listeners.
Many marine instruments, although compliant with the NMEA 0183 specification, do not provide sufficient drive capability for multiple listeners. To overcome this, the SX14 has four outputs, each of which can drive multiple listeners, both RS-422 and/or RS-232, as needed. All outputs are isolated from each other, so that shorting one will not affect the others. A green data LED and a yellow fault LED indicate the unit is operating and connected properly.
Noland Engineering - SX14 NMEA 0183 Expander (, 0) [Download]