This document introduces the IP Security series of digital surveillance products, including the i-Pro dual compression format MPEG-4/JPEG encoder. The product can connect up to 4 analog cameras, supports MPEG-4 / JPEG dual-stream output, and has high-definition recording capabilities. It also supports 4-channel coaxial cable control, bidirectional 1-channel audio function, built-in SD memory card slot, and other features.
This manual describes the Panasonic WJ-NT304 video encoder, including its dual MPEG‑4/JPEG stream output, two‑way audio, and SD‑card backup capabilities. It outlines network connectivity options, alarm handling, and supported video formats for real‑time monitoring and high‑resolution recording.
Technical details such as audio/video interfaces, power requirements, environmental limits, and physical dimensions are listed, along with configuration steps via a web browser and supported network protocols. This manual is written in Chinese.
| Audio Input | -10 dBV, 10 kΩ, unbalanced |
|---|---|
| Audio Output | -10 dBV, 600 Ω, unbalanced |
| Video Input | 10 V p‑p / 75 Ω x 47 PAL composite signal |
| Video Output | 10 V p‑p / 75 Ω x 47 PAL composite signal |
| Image Resolution | JPEG 640×480 / 320×240, MPEG‑4 640×480 / 320×240 |
| Image Refresh Rate | 0.1 fps – 25 fps |
| Power Consumption | 12 W |
| Operating Temperature | -10 °C to +50 °C |
| Weight | ≈2.3 kg |
| Dimensions | 210 mm W × 44 mm H × 300 mm D |
| Network Interface | 10Base‑T/100Base‑TX, RJ45 |
| SD Card Support | 64 MB – 2 GB SD cards |
| Audio Compression | G.726 ADPCM (bidirectional) |
| Maximum Cameras | 16 cameras (4×4 layout) |
| Alarm Inputs | 16 alarm inputs, 16 camera alarms, 4 video‑loss alarms |
It supports 10Base‑T/100Base‑TX Ethernet via an RJ45 connector.
Up to 16 cameras can be displayed in a 4 × 4 layout.
An SD memory card ranging from 64 MB to 2 GB can be used for backup.
The device operates from –10 °C to +50 °C.