Legacy HD-SDI CCTV systems
Check the original equipment before upgrading an older HD-SDI system.
Read the labels before buying
HD-SDI equipment uses coax, but a matching plug alone does not establish compatibility. Check the existing camera signal and the inputs supported by the replacement recorder.
Compare reuse and replacement
Have the cable checked before budgeting a coax reuse plan. Compare the costs and recording features with a Hikvision IP and PoE replacement.
Bring the installer enough information to quote
Photograph the recorder's rear panel and model sticker, and identify which cable reaches each camera. Ask for a cable condition check and written confirmation of the proposed recorder input format. If cabling is replaced, plan new runs and recorder placement together.