MOORBO数字无线对讲系统及应用解决方案.ppt

酒店、物业等楼宇覆盖 客户需求： 部门通话不相互干扰 日常通信对讲区域(楼宇)覆盖 紧急情况应急指挥 频率资源紧张 失火及管理信息传递 设备间等嘈杂环境清晰通话 酒店、物业等楼宇覆盖 解决方案： 数字组呼、群呼及个呼 – 解决部门通话不相互干扰 IP site connect – 解决日常通信对讲区域(楼宇)覆盖 对讲机优先强插通话 – 解决紧急情况应急指挥 Capacity Plus/12.5KC信道TDMA – 解决频率资源紧张 中文短信 – 解决失火及管理信息传递 环境背景噪音降低功能 – 解决设备间等嘈杂环境清晰通话 – 酒店、物业等楼宇覆盖 成功案例： 国家博物馆、青岛香格里拉酒店、上海国际金融中心 QA MOTOTRBO QA THANK YOU SUCCESS * * 可编辑 Instructor Notes: This slide introduces the two slot TDMA architecture. Refer to Section 2- System Feature Overview of the MOTOTRBO System Planner (6880309T12). Note: Users in Slot 1 cannot communicate with users in slot 2. TDMA thereby offers a straightforward method for achieving 6.25 Hz equivalency in 12.5kHz repeater channels — a major benefit for users of increasingly crowded licensed bands. Instead of dividing channels into smaller slices of decreased bandwidth — which is what would be required to increase spectrum efficiency with FDMA methods, TDMA uses the full 12.5kHz channel bandwidth, but increases efficiency by dividing it into two alternating time slots. Additionally, this method preserves the well-known radio frequency (RF) performance characteristics of the 12.5kHz signal. From the perspective of RF physics — that is, actual transmitted power and radiated emissions — the 12.5kHz signal of 2-slot TDMA occupies the channel, propagates, and performs essentially in the same way as today’s 12.5kHz analog signals. With the added advantages of digital technology, TDMA-based radios can work within a single repeater channel to provide roughly twice the traffic capacity, while offering RF coverage performance equivalent to, or better than, today’s analog radio. Instructor Notes: This slide introduces the concept of two time slots also known as logical channels. Tip: Demonstrate how two calls with the same frequency but different time slots can occur simultaneously. Refer to Section 2- System Feature Overview of the MOTOTRBO System Planner (6880309T12). This is only available in repe