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CONTENTS
1. INDOOR MONITOR ----------------------------------------------- 1
1.1 Indoor Monitor VT 680 --------------------------------------------- 1
1.2 Indoor Monitor VT 684 --------------------------------------------- 2
1.3 Indoor Monitor VT 686 -------------------------------------------- 3
1.4 Indoor Monitor VT 687 -------------------------------------------- 4
1.5 Audio-phone VT 672 ----------------------------------------------- 5
1.6 Audio-phone VT 673 ----------------------------------------------- 5
2. OUTDOOR STATION -------------------------------------------- 5
2.1 Outdoor Station VT 580 -------------------------------------------- 5
2.2 Outdoor Station VT 581 -------------------------------------------- 6
2.3 Outdoor Station VT 584 -------------------------------------------- 6
3. ADAPTOR -------------------------------------------------------- 6
4. OPERATION ------------------------------------------------------ 7
5. MOUNTING INSTRUCTION ------------------------------------ 9
5.1 Indoor Monitor mounting ------------------------------------------ 9
5.2 Outdoor Station mounting ----------------------------------------10
6. SYSTEM CONNECTION ---------------------------------------- 11
7. MAIN TECHNICAL PARAMETER ------------------------------ 16
8. MAINTENANCE AND CARE INSTRUCTIONS ----------------- 16