153, Serial RS232C Communication Protocol

SERIAL (RS232C) CONNECTOR COMMAND REFERENCE

■SERIAL (RS232C) Communication Protocol

With the SERIAL (RS232C) interface, you can control functions of this unit by transferring the specified commands from a per- sonal computer (PC) to this unit.

Notes:

•This unit does not support the communication converted between the SERIAL (RS232C) and USB interface.

•When controlling the unit with the SERIAL (RS232C) interface, the following parameters should be identical between the communication devices.

The setting is available in "SETUP MENU" – "Comm" – "RS232C Setup". Baud Rate

Data Bit Parity Stop Bit

■Command Format

The following pages detail how to write the commands.

1. The following details how to write the commands

Code	[STX] AD [Unit address of this unit] [Transmission Command] : [p] [ETX]

ASCII	(02H) – – – – – – – – – – – – – – – – – – – – – – – – – – – (03H)

STX: This shows the data start. STX (ASCII code: 02h) is always prefixed to data. h shows hexadecimal digit.

Unit address of the unit: Designate the unit address set for "RS232C" of "Comm" on the SETUP MENU.

Transmission command: A command shown in the Command List is designated.

ETX: This shows the data end. ETX (ASCII code: 03h) is always prefixed to data. The character code is ASCII.

When a command needs a parameter, a colon (:) is used for dividing the command and parameter. The following shows how to write the commands when two or more commands are specified.

Code

[STX] AD [Unit address of this unit] [Transmission Command] : [p1] : [p2] [ETX]

2. Response Command (from the Unit to the PC)

The unit sends back the response command for the transmission command from the PC.

•When the reception was completed successfully

The response command differs between when an ANSWER command (sending back the status or data) is required or when not required.

•When no ANSWER command is required

The unit sends back the same identifier as that in the transmission command, as shown in the figure.

Transmission command (→ The unit)			Response command (← The unit)
[STX]	OPL	[ETX]	[STX]	OPL	[ETX]

Same identifier

153 WJ-HD316A, WJ-HD309A specifications

The Panasonic WJ-HD309A and WJ-HD316A are advanced digital video recorders renowned for their performance in the professional surveillance arena. These models are engineered to deliver high-quality video capture, storage, and playback, making them ideal for various security applications in corporate, retail, and public safety settings.

One of the standout features of both the WJ-HD309A and WJ-HD316A is their ability to support real-time recording of up to 30 frames per second at D1 resolution, ensuring that captured footage remains fluid and clear. The high-resolution capability enhances image clarity, making it easier for operators to identify people and objects in surveillance footage.

These recorders utilize H.264 compression technology, which provides efficient data storage without compromising image quality. This allows for extended recording periods, making it feasible to monitor large areas over long durations while minimizing the need for extensive storage solutions.

An impressive characteristic of the WJ-HD309A and WJ-HD316A is their scalability. Users can seamlessly integrate these recorders into larger systems, connecting multiple cameras and additional storage units for comprehensive surveillance coverage. This flexibility ensures that organizations can grow their surveillance systems in line with operational needs, whether expanding a facility or incorporating new technologies.

Moreover, both models feature advanced search capabilities, enabling users to quickly locate specific events or timeframes in recorded footage. This is augmented by the user-friendly interface, which simplifies the management and playback of video files. The inclusion of network connectivity through Ethernet ports also facilitates remote access, allowing users to monitor live feeds and recorded footage from any located device with internet capabilities.

Another noteworthy aspect is the robust build quality of these recorders, designed for durability and reliability in various environmental conditions. They can operate effectively in challenging settings, making them suitable for outdoor and indoor installations alike.

In summary, Panasonic's WJ-HD309A and WJ-HD316A digital video recorders combine high-definition video capture with versatile storage capabilities, advanced compression technology, and user-friendly interfaces. Their scalability and robust features make them essential tools in the realm of video surveillance, ensuring comprehensive security solutions for diverse applications.

Panasonic WJ-HD316A, WJ-HD309A 153, Serial RS232C Communication Protocol, Command Format

Models: WJ-HD316A WJ-HD309A