Sena Parani-SD1000U User Manual download pdf (Page 24)

4. Multiple Connection Mode

4.1. Overview

Parani-SD1000U supports multiple connections up to 4 slave units. There are two types of multiple

connection modes: Multi-Drop Mode and Node Switching Mode.

S1 S4

S3S2

Figure 4-1 Multi-Drop Mode

In Multi-Drop Mode a master unit can connect to maximum 4 slave units at the same time and they

transfer data bi-directionally as in Figure 4-1.

S1 S4

S3S2

Figure 4-2 Node Switching Mode

In Node Switching Mode, the master unit maintains multiple connections with maximum 4 slave units

but only one connection with one slave unit is active and data is transferred as shown in Figure 4-2.

After connected to slave, master acts command mode. Active slave is selected by AT commands.

On communication after connecting

ATO1 – Communicating with #1 Slave

+++

ATO000195000003 – Communicating with slave of BD 000195000003

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Sena Parani-SD1000U User Manual Page 24