Sony FS-2570, FS-1570 System Characteristics, Equipment priority, Controls become inoperative

1 OPERATIONAL OVERVIEW

1.9 System Characteristics

1.9.1 Equipment priority

Equipment priority order is as below.

1.DMC

2.Control unit sending distress alert

3.Control unit 1 – routine use

4.Control unit 2 – routine use

5.NBDP

1.9.2 Controls become inoperative

Controls become inoperative in the following conditions:

•Controls of idle control unit in the two-control unit system when other control unit goes

OFF HOOK.

•Controls of idle control unit in the two-control unit system when other control unit switches to the DSC mode.

•Distress received by DMC (Distress Message Controller).

•NBDP is scanning or communicating.

•Distress alert or distress relay is transmitted.

•Call other than distress is transmitted (transmission time about 8 s). If it becomes necessary to unlock the keyboard before the message is transmitted, press the [CANCEL] key to cancel the call.

1.9.3 Controls become operative

Controls become operative in the following conditions:

•[DISTRESS] button is pressed.

•Control unit having highest priority is operated.

•Other control unit in two-control unit system goes ON HOOK.

•Distress received by DMC is acknowledged.

•NBDP stops scanning or communicating.

1.9.4 Automatic setting of working frequency

The radiotelephone automatically sets working frequency in the following conditions:

•ABLE ACK is sent in response to individual call.

•Your ship receives ABLE ACK in response to own ship-initiated individual call.

•Your ship sends all ship call.

•Your ship sends distress relay.

•Your ship sends distress alert.

•Your ship receives group call or area call.

•Your ship receives distress relay call.

•Your ship receives distress alert.

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