DTE vs. DCE Cable, Protocol, Format | Guardian Technologies RS-232

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8 Conductor Cable: Top View

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4 Conductor Cable: Top View

Figure 2: Connection Cable

DTE vs. DCE:

Cable:

The RS-232 interface is attached to a RJ-45 to DB-9 connector with either a 4 conductor or 8 conductor “phone” cable. The cable is NOT pin compatible with standard 4 conductor phone cords. See Figure 2: Connection Cable. For a

4 conductor cable only pins 3,4,5,6 on the RJ-45 connector will be used. As of software revision

8.04only pins 3,4,5,6 are supported eliminating the necessity for 8 conductor connections.

Protocol:

The 2-way RS-232 standard for the Destiny control panel is an open standard and is available by calling Technical Support at 800-272-7937.

The RS-232 interface can operate in either Date Terminal Equipment (DTE) or Data Communication Equipment (DCE) mode. A jumper (J3) is located to the right of the RJ-45 on the interface board. Attach the supplied jumper across the center and bottom pin for DCE operation or the top two pins for DTE. Most applications will require DCE including connection to a PC and a printer.

Programming:

The following programming options are provided:

001- Enable the RS-232 adapter

002- Enable printer compatibility

004- Use English Line text (for printers only)

008- Enable 2-Way RS-232 communication (for PC connections)

064- Enable Remote System Mode

Place the system into program mode (default: 9,1,7,3), enter location 0,1,5,5 and then enter the sum of options to be enabled. For example, to enable 2-way communication, enter 0,0,9 (001 + 008). For printing, enter 0,0,7 (001 + 002 + 004).

Printer Reports:

When enabled (as described in Programming, above), any event programmed to appear in the Event Memory Log will be printed when an event occurs. All items in the system that can be sent to a central station will be printed as the event occurs. The “Report to Central Station” programming option does not affect the printer report.

Note: the RS-232 does not buffer events, if a printer is off-line the event will not be printed.

Format:

The following is an example of the printer output when connected to the RS-232 port.

Event	User	Time	Month	Day
Open - System Disarmed	User = 01	13:23	July	29

K1148-X 4/98, RS-232 specifications

Guardian Technologies RS-232, K1148-X 4/98, is a versatile and robust product designed to facilitate reliable and efficient serial communication in various applications. These systems are particularly valuable in environments where strong data integrity, speed, and adaptability are paramount. The RS-232 standard has long been chosen for its simplicity and effectiveness in connecting computers and peripheral devices.

The K1148-X 4/98 model is optimized with several features that enhance its usability. One of its main characteristics is its support for diverse baud rates, which allows users to tailor the data transmission speed to their specific needs. This adaptability ensures compatibility with a wide range of devices and reduces the likelihood of communication errors.

One standout feature of the K1148-X 4/98 is its robust construction. Designed to withstand harsh environmental conditions, it is built with high-quality materials that promote durability and longevity. Furthermore, the device's compact form factor facilitates easy integration into existing systems, making it an attractive solution for both new setups and retrofits.

Another key aspect of the Guardian Technologies RS-232, K1148-X 4/98, is its electrical characteristics. The device is designed to meet RS-232 specifications, ensuring reliable signaling over longer cable lengths. This capability is particularly beneficial in industrial settings where devices may be some distance apart.

The K1148-X 4/98 employs advanced circuitry that greatly reduces the chances of signal degradation. Incorporated noise-reduction technologies enhance the integrity of data transmission, making this model highly effective in environments with electromagnetic interference.

Moreover, the Guardian Technologies device is equipped with comprehensive diagnostic tools that assist in monitoring performance and troubleshooting issues. This feature significantly streamlines maintenance processes, ensuring minimal downtime and increased operational efficiency.

The versatility of the RS-232, K1148-X 4/98 also extends to its connectivity options. It supports multiple signal configurations, thereby allowing users to connect various devices such as printers, modems, and other serial devices seamlessly.

In summary, the Guardian Technologies RS-232, K1148-X 4/98 is a potent tool for serial communication, combining a host of advanced features, rugged design, and exceptional performance. Its adaptability and reliability make it an ideal choice for industries that demand precision and efficiency in data transfer.