AGI Security SYS-HC0851S2 - Manual (Page 109)

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Please note for digital channel, you can only modify the channel name of the connected
network camera.
Figure 4-59
4.10.1.3.5 Channel Type
It is to set channel type. Each channel supports analog standard definition
connections/analog HD connection/network camera connection (Slight function difference
may be found). For the IP channel, you need to set from the last channel. System max
supports 2 IP channels. Please note DVR needs to restart to activate new setup.
The interface is shown as in Figure 4-60.