RL6110 alarm module is the auxiliary equipment, which uses combine the hard disk recorder. It has 16 alarm signal input (16 contact circuits), and can choose the open or closed circuit signal alarm, 4 alarm output (4 relays)
Communication mode between the RL6110 and DVR is sends a string inquiry code by PC, and the local return to a string condition code.
RL6110 alarm modules can simultaneous work with CK236/CK238/CK2316.