HIKVISION ADS-24S-12 1224GPCN Quick Start Manual page 32

Video Intercom Main Unit·Quick Start Guide
Figure 3-28 Connect Wires and Insert Modules
Cable 1 refers to the cables pulled out from the wall that connected to the main unit.
Cable 2 refers to the module-connecting line in the accessory package.
8. Use the hexagon wrench in the package fix the cover.
Figure 3-29 Fix the Cover
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