Accessory 타입 = Wireless Transceiver Hazardous Area Certification = ATEX RAD - Expansion / Extension Modules. Analogue / Digital extension modules with 4 inputs and/or 4 outputs Mounting on standard DIN rail NS 35 in accordance with EN 60715 Range also includes a wireless transceiver version with RS-232 and RS-485 interfaces under stock number ; 764-6271 764-6271