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# Compatible RS-422/485 Transceivers
## Background
LocalTalk requires an RS-422/485 transceiver whose receiver output floats high when the bus is not being driven.
Not all of them do! This is a non-exhaustive list of known-good ones.
## [SN65HVD08](https://www.ti.com/product/SN65HVD08)
Used by Tashtari in breadboard testing.
## [ISL83076E](https://www.renesas.com/us/en/products/interface-connectivity/rs-485-rs-422-rs-232/rs-485rs-422/standard-rs-485rs-422/isl83076e-15kv-esd-protected-33v-full-fail-safe-low-power-high-speed-or-slew-rate-limited-rs-485rs-422)
Used by bdurbrow on TashTalkHat.
## [GM3085E](http://www.gmmicro.com/product_view_716.html)
Used by cheesestraws on AirTalk.
## [TP75176E-SR](http://www.3peakic.com.cn/En/product/inproduct/catid/136/id/199.html)
Used by cheesestraws on AirTalk.