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I noticed yesterday that there's a new firmware build for the DS-KV6113 intercom (c revision). There's no change to the firmware version (2.2.65), but there's a new build date. This is now the third build date:
2.2.65_build230504
2.2.65_build230703
2.2.65_build231213
The 230703 build added the 'mechanical doorbell' function that allowed the lock output relay (when not needed) to follow the call button, allowing connection to another device. Unfortunately the relay pulse from open to closed that's generated when the call button is pressed, is too short to be recognised by most connected devices. That issue has been reported to Hikvision but I'm not sure whether this newer build corrects that.
2.2.65_build230504
2.2.65_build230703
2.2.65_build231213
The 230703 build added the 'mechanical doorbell' function that allowed the lock output relay (when not needed) to follow the call button, allowing connection to another device. Unfortunately the relay pulse from open to closed that's generated when the call button is pressed, is too short to be recognised by most connected devices. That issue has been reported to Hikvision but I'm not sure whether this newer build corrects that.
