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3.6
Polling
Polling means one station (the polling station) interrogating another or others (the
polled station or group of stations) for the purpose of receiving a message. The
polling station may be a ship station (MES) or a shore subscriber, while the polled
station is always an MES.
When a polled MES finds the polling command in the received message, it
requests the station sending the polling command to transmit its ID number. In
this way, the authenticity of the polling station is confirmed. The polled MES then
responds automatically in a predetermined manner, either with a data reporting
message or by initiating a ship-to-shore or ship-to-ship message transfer.
3.6.1
Polling procedure overview
3. TELEX COMMUNICATIONS
Polling overview
3-25
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