1. Rackmount 3.5U height;
2. All-in-one device, supports E1/ISDN, FXO/FXS, GSM/CDMA/WCDMA/4G LTE, Radio/PTT/Audio/VHF/UHF, E&M/Magnet, SIP&SIP user;
3. Built-in with industrial computer board X86 or MIPS card for installing customers' software;
4. MCU slot *1 or 2, PSU slot *1 or 2, LPU slot *12 (Both MCU and PSU are hot-standby);
