Cybersecurity Recommendations........................................................................................................II
Foreword .................................................................................................................................................V
Important Safeguards and Warnings................................................................................................VII
1Product Overview ................................................................................................................................1
1.1 Product Profile................................................................................................................................1
1.2 Product Function ............................................................................................................................1
2Product Structure ................................................................................................................................3
2.1 Front Panel.....................................................................................................................................3
2.1.1 VUH5221 Series /VUH5241 Series.....................................................................................3
2.1.2 VUH15 Series Type A/B.......................................................................................................4
2.1.3 VUH15 Series Type CH/5222CH.........................................................................................6
2.1.4 VUH1660CH........................................................................................................................7
2.1.5 VUH2221A...........................................................................................................................7
2.2 Rear Panel Port..............................................................................................................................9
2.2.1 VUH5221 Series/VUH5241 Series......................................................................................9
2.2.2 VUH15 Series Type A/ Type B/Type CH.............................................................................9
2.2.3 VUH5222CH......................................................................................................................10
2.2.4 VUH1660CH......................................................................................................................10
2.2.5 VUH2221A.........................................................................................................................10
3Network Diagram ...............................................................................................................................12
3.1 2-wire System...............................................................................................................................12
3.2 Digital System...............................................................................................................................13
4Device Installation................................................................................................................................15
4.1 Installation Flow Chart..................................................................................................................15
4.2 Open-case Inspection...................................................................................................................15
4.3 Installation Requirement...............................................................................................................16
4.4 Device Installation ........................................................................................................................16
4.4.1 Surface Installation............................................................................................................16
4.4.2 Installation with 86 Box......................................................................................................17
5Device Debugging..............................................................................................................................18
5.1 Debugging Settings......................................................................................................................18
5.1.1 VUO Settings.....................................................................................................................18
5.1.2 VUH Config........................................................................................................................23
5.2 Debugging Verification.................................................................................................................28
5.2.1 VUO Calls VUH..................................................................................................................28
5.2.2 VUH Monitors VUO............................................................................................................28
6Interface Operation............................................................................................................................30
6.1 Main Interface...............................................................................................................................30
6.2 Setting...........................................................................................................................................31
6.2.1 Ring Settings .....................................................................................................................31
6.2.2 DND Settings.....................................................................................................................35
6.2.3 Alarm Setting......................................................................................................................36
6.2.4 Mode Setting......................................................................................................................40
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