Table of Contents IXTable of ContentsCybersecurity Recommendations .......................................................................................................... IIRegulatory Information ............................................................................................................................ VForeword .................................................................................................................................................. VIImportant Safeguards and Warnings ................................................................................................ VIII1 Overview .............................................................................................................................................. 1Introduction ................................................................................................................................... 1Features ........................................................................................................................................ 12 Appearance ......................................................................................................................................... 3VTO1220A/VTO1210A-X .............................................................................................................. 32.1.1 Front Panel ......................................................................................................................... 32.1.2 Rear Panel .......................................................................................................................... 4VTO1220BW/VTO1210B-X .......................................................................................................... 52.2.1 Front Panel ......................................................................................................................... 52.2.2 Rear Panel .......................................................................................................................... 6VTO1210C-X................................................................................................................................. 72.3.1 Front Panel ......................................................................................................................... 72.3.2 Rear Panel .......................................................................................................................... 8Connecting Cable ......................................................................................................................... 82.4.1 Access Control Input and Output Port ................................................................................ 82.4.2 RS-485/RS-482 Port ........................................................................................................... 92.4.3 Analog Signal Port ............................................................................................................ 103 Network Diagram ................................................................................................................................. 124 Installation............................................................................................................................................ 13Installation Requirement ............................................................................................................. 134.1.1 Notice ................................................................................................................................ 134.1.2 Guidance........................................................................................................................... 13Installing VTO.............................................................................................................................. 144.2.1 VTO1220A/VTO1210A-X.................................................................................................. 144.2.2 VTO1220BW/VTO1210B-X .............................................................................................. 154.2.3 VTO1210C-X .................................................................................................................... 165 Configuration .................................................................................................................................... 18Configuration Process................................................................................................................. 18VDPConfig .................................................................................................................................. 18Configuring VTO ......................................................................................................................... 185.3.1 Initialization ....................................................................................................................... 185.3.2 Configuring VTO Number ................................................................................................. 195.3.3 Configuring Network Parameters ..................................................................................... 205.3.4 Configuring SIP Server ..................................................................................................... 215.3.5 Adding VTO Devices......................................................................................................... 225.3.6 Adding Room Number ...................................................................................................... 23Verifying Configuration ................................................................................................................ 25