jotron MPA 1603 GA User Manual

17
User and Installaon Manual
Compact MPA
4.5 GENERAL ALARM INTERFACE TO SHIP WHISTLE/SIREN
In order to use the ship whistle as a part of the General Alarm system the Compact MPA is providing a dry closing contact
(NO) output that generates a control output signal synchronised with the GA tone sequence at terminals 82 and 84. Ref.
drawing in 9.3.
4.6 MUTE OF EXTERNAL GENERAL ALARM DURING EMERGENCY PA
During an acve Emergency PA, the Compact MPA outputs a dry closing contact (NO) output at terminals 85 and 87 as a
mute signal for an alternave external GA system. This signal is acvated together with the internal GA mute funconality.
4.7 GENERAL ALARM 
An acve General Alarm in the Compact MPA system is also indicated with a dry closing contact (NO) output at terminals 66
and 68 for acvaon of external GA warning lights. This is mandatory in high noise environments. Ref. drawing in 9.3.
140 Power -
142 Audio +
User Interface 4
Bidireconal Electronically balanced audio input 2Vrms 15k Ω
144 Audio -
146 RS485 -
Bidireconal
Data communicaon tranceiver
channel RS485
5V 100 Ω
148 RS485 +
150 Power +
Output Power supply output 24VDC 140 mA
152 Power -
153 Audio +
Mic. Staon 1 Input
Electronically balanced audio input 10 mV 5 kΩ
155 Audio -
157 PTT
Dry contact input ≈20 VDC 2 mA
159 PTT ref-
154 Audio +
Mic. Staon 2 Input
Electronically balanced audio input 10 mV 5 kΩ
156 Audio -
158 PTT
Dry contact input ≈20 VDC 2 mA
160 PTT ref-
161 485 -
RS 485
(To amp 1671)
Bidireconal
Data communicaon tranceiver
channel RS485
5V 100 Ω
163 485 +
165 485 -
Data communicaon tranceiver
channel RS485
5V 100 Ω
167 485 +
169 485 -
Data communicaon tranceiver
channel RS485
5V 100 Ω
171 485 +
162 RX B
RS 422 – RX
(Not used)
164 RX A
166 RX B
168 RX A
170 RX B
172 RX A
173 100V_P
100V line from amplier
(Zone 1 / Relay 1)
Input
100VAC 2.5A
174 100V_N 100VAC 2.5A
175 100V_P
100V line from amplier
(Zone 2 / Relay 2)
Input
100VAC 2.5A
176 100V_N 100VAC 2.5A
177 100V_P
100V line from amplier
(Zone 3 / Relay 3)
Input
100VAC 2.5A
178 100V_N 100VAC 2.5A
179 100V_P
100V line from amplier
(Zone 4 / Relay 4)
Input
100VAC 2.5A
180 100V_N 100VAC 2.5A
181 100V_P
100V line from amplier
(Zone 5 / Relay 5)
Input
100VAC 2.5A
182 100V_N 100VAC 2.5A
183 100V_P
100V line from amplier
(Zone 6 / Relay 6)
Input
100VAC 2.5A
184 100V_N 100VAC 2.5A
All cables used for external interfaces are to be twisted pair, outer screen, 0.75 mm² minimum.

jotron MPA 1603 GA Specifications

General

Brand	jotron
Model	MPA 1603 GA
Category	Marine Equipment
Language	English