Nexus 21 NX2 - Manual (Page 11)

SERVER
2.4 Connecting optional accessories
These optional accessories are available from your local Nexus
Dealer. (For a more complete list of accessories available, see
4.3).
2.4.1 Man over board (MOB) push-button
Art. no. 19763. (For function explanation, see Multi Control
Manual).
White wire to Server pin 16 (MOB). Brown wire to Server pin 12
(0V).
2.4.2 Tactical function push-button
Art. no. 19763 (same as MOB). (For function explanation, see
Multi Control Manual).
White wire to Server pin 15 (SET STEER). Brown wire to Server pin
12 (0 V).
2.4.3 Extra alarm buzzer
Art. no. 20081. The extra buzzer (105 dB at 15 cm, not water
proof) can be mounted where you want a louder sound. The
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