Wired Input Expander（Cascade）
- 8 on-board wired zones
- Support 3EOL connection(Alarm: 1KΩ; Tamper: 1KΩ; Fault: 2.2KΩ)
- Support zone alarm, tamper, masking, fault, short detection
- 1 power output for wired detectors
- 2 Speed-X bus, supporting wired input expander cascade mode
