SIMATIC S7-300, DIGITAL OUTPUT SM 322, OPTICALLY ISOLATED, 32 DO, 24V DC, 0.5A, (6ES73221BL000AA0)

Main Features:

Supports the GSM standard Supports the high-quality voice service (encoding speech of FR, EFR, HR) Supports emergency calls Supports multiple supplementary services: caller number identification presentation, call forwarding, call waiting, call hold and three-way calling Supports SMS A large-capacity phone book up to 200 items Supports the dual tone multi-frequency (DTMF) secondary dialling Supports customized volume settings Provides ten chord ring-tones for incoming calls Provides backlight for the LCD Provides TNC antenna interface that can connect the indoor antenna Provides a battery. When the battery level is low and the FWT is connected to the AC power supply, the battery is auto charged Provides security solutions, such as network lock, SIM lock, cell lock, PIN lock, etc. (optional)