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3.21 CONNECTING TO EXTERNAL
BUZZERS
An external buzzer dry contact output is available for this equipment.
Dry contacts are output from pins 6 and 7 of the 8-pin connector of J5.
The capacity of the output contacts is up to 1A/30V.
When a larger current/voltage is applied, install an external device with a sufficient contact capacity such
as a relay.
When the current/voltage exceeded the contact capacity, the contact of this equipment is fused and
external buzzer is emitted continuously, causing an extremely dangerous condition.
1) Connection
When connecting an external buzzer to this radar, connect the necessary signal line to the attached
NMEA data connector P5 (for J5) LTWBD08BFFA-LL7001 using the following diagram as the
reference.
JMA-5200MK2 side External buzzer side
(6) ALM + Dry contact output 1
(7) ALM - Dry contact output 2
Connector for GPS compass/NSK equipment (J5)
To GPS compass or NSK unit
(1) NSKTX- : Output of receiving signals from NSK+
(2) NSKTX+ : Output of receiving signals from NSK-
(3) NSKRX+ : Input of receiving signals from NSK+
(4) NSKRX- : Input of receiving signals from NSK-
(5) GND : Power GND for NSK
(6) ALM+ : Dry contact output 1
(7) ALM- : Dry contact output 2
(8) +5V : Power for NSK (+5V)
(1)
(2)
(3)
(4)
(7)
(6)
(5)
(8)
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