2 INSTALLATION RT2048
4. With AUX INTERFACE OPTION installed
Part no. 625473
(AUX1, AUX2 and MUTE functions) (Distress and Selcall functions are also mounted).
a. AUX2, when information on certain channels is wanted, i.e. controlling a watch keeping
receiver, the AUX2 information can be used, a relay is controlled from the microprocessor.
Max. contact load: 100V AC/24V DC - 2A.
b. AUX1, when function code in Prom 1 is enabled, AUX1 is free programmable on all
international channels (“0” or “1”).
Standard programming on international channels is “0”.
Max. contact load: 100V AC/24V DC-2A.
c. MUTE, makes it possible to mute AF power amplifier from external equipment.
Activated by a make function between pin 5 and pin 8 in P1 on option board.
5. With BUS INTERRUPT OPTION installed
Part no. 626945
This module is used for interface to VHF DSC RM2042.
6. With ATIS OPTION installed
Part no. 728665
The module 628652 is used for interface to ATIS module 626707, which is mounted on this PCB.
For circuit description and programming of ATIS option please refer to Appendix A - ATIS OPTION
25662A
COMPONENT LOCATION FOR SPECIAL OPTIONS MODULES
VALID FOR 625661 / 625660 / 625473
Seen from component side Seen from component side
with upper side tracks. with lower side tracks.
PCB rev. 25473
0820
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