This document is the operating instructions for the WJ-HD309A and WJ-HD316A digital disk recorders, including guidelines for connecting and operating the product. It provides information about the features and characteristics of the products.
The WJ‑HD309A and WJ‑HD316A are digital disk recorders designed for surveillance systems, combining a hard‑disk recorder with a video multiplexer (9‑input for the WJ‑HD309A, 16‑input for the WJ‑HD316A). They record camera images to hard disks, support multi‑screen display, and offer network operation.
This manual covers safety warnings, installation precautions, feature descriptions, front‑panel controls, startup and shutdown procedures, recording and playback functions, network setup, and maintenance tasks such as battery charging and hard‑disk replacement.
| Input Power | 220‑240 V AC, 50 Hz |
|---|---|
| Camera Inputs | 16 (HD316A) / 9 (HD309A) |
| Backup Battery Life | ≈5 years |
Open the fuse compartment with a screwdriver and replace the fuse with a 5 A fuse approved by ASTA or BSI, then replace the fuse cover.
No user‑serviceable parts are inside; servicing must be performed by qualified service personnel.
Turn the power off, use a dry cloth for normal cleaning, and a mild detergent with a soft cloth for tougher dirt; avoid strong abrasives.