If not any SDI/HDMI connections are possible (for instance a camera already installed in heights and only used for IP streaming), it would be worth scanning the network using a free scanner software such as 'Angry IP scanner' or 'Advanced IP scanner'. Scan into the same IP range than the DHCP server (or any another IP devices available into that same network like a laptop).
Below is an example with the 'Advanced IP scanner' software scanning into the IP range 192.168.1.x (from 192.168.1.1 to 192.168.1.254) where my laptop had been assigned the IP address 192.168.1.199. The AVONIC camera is finally found and confirmed on the assigned IP address 192.168.1.133 :
* Note: If DHCP is enabled and no DHCP server is available, the camera will automatically appoint an IPv4 link local address between 169.254.0.0 and 169.254.255.255. (Even here the IP address should be shown on the screen at start-up on HDMI/SDI outputs)
Finally, if for any reason it would be impossible to find the camera on the network although it is connected to with a good working network cable and the camera is powered, maybe it is worth considering the reset method with IR remote controller, so the camera will get back that its default settings including the default IP address 192.168.5.163. Then, from its web gui it would be possible to configure the camera network settings (NETWORK tab > Ethernet)