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RPM2A-914-17 Datasheet(PDF) 3 Page - Radiometrix Ltd |
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RPM2A-914-17 Datasheet(HTML) 3 Page - Radiometrix Ltd |
3 / 15 page Radiometrix Ltd. UHF FM Radio Packet Modem page 3 1.1 OPERATING STATES The RADIO PACKET MODEM has three normal operating states: • SHUTDOWN • STANDBY • CONNECTED SHUTDOWN The SHUTDOWN state is entered by asserting the WAKE/DTR input pin high (Vcc). It effectively forces the RPM2A into a suspended state. Communications cannot be made with the RPM2A in this state. WAKE/DTR pin should be pulled Low by host or connected to 0V to Enable the RPM2A. STANDBY Immediately after power up and during normal operation, the RPM2A will automatically enter standby mode where it is waiting for a connection request from a remote RPM2A module. While in this mode a remote connection request can be received which will place the RPM2A into a connected state allowing it to then start receiving data from the remote unit. The connected host device can also send data to the RPM2A via the serial interface which will force the module to send a connection request to the remote RPM2A module, thus effectively setting up a logical connection between two units and allowing data to be transferred. CONNECTED On receipt of a connection request from a remote unit, the RPM2A immediately enters a connected state. This effectively allows the RPM2A modems to start sending and receiving data. In-coming data is sent to the host via the serial port in the same form as it was given to the remote RPM2A module. Figure 4: RPM2A transmitting data at 28kbps during ZMODEM file transfer to a remote RPM2A |
Similar Part No. - RPM2A-914-17 |
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Similar Description - RPM2A-914-17 |
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