PQ-8P, PQ-8S

5.3 Parallel/Serial-Port Initialization

If you want to change the printer’s configuration for shared printing (e.g. set it to PostScript mode), use the parallel/serial-port initialization string (Host/PC download command 56 or 58). Consult the printer’s user’s guide for the ASCII hex values representing the desired configuration commands. Then store these commands in the PQ-8’s memory using Host/PC download command 56 or 58 or the setup software.

After host printing is completed and before the print job from the shared port is sent to the printer, the PQ-8 will send this initialization string to the printer and configure it according to your instructions. However, the print job coming through the shared port might contain other printer instructions, thus overriding the parallel/serial- port initialization string.

5.4 Host Printing

Based on the IBM printer emulation selected, you will have access to

all the features inherent in the respective IBM printer the PQ-8 is emulating. In addition to the features of the emulated IBM printer, ASCII printers will often have other capabilities that you can take advantage of using Command Pass-Thru.

5.5 Host-Port Initialization

After shared printing, the PQ-8 reconfigures the printer according to the active configuration settings. If you want to further modify the printer configuration (e.g select a different font for all host printing), take advantage of the host-port initialization string. Unlike the parallel/serial-port Initialization String, which is usually overridden by commands coming with the PC/LAN print job, the host-port initialization string is not sent to the printer until after the PQ-8 has reconfigured the printer for host printing. In 3812 emulation, the Init String is sent at the beginning of each printed page. In all other emulations, the Init String is sent at the beginning of the first host print job.

5.6 Star-Panel Overdrive

For installations using twinax cabling, the Star-Panel Overdrive option should be set to OFF (Host/PC download command 20 or the setup software).

If you have problems dropping off- line when using a passive star panel and twisted pair cabling, set the Star Panel Overdrive to ON. This increases the signal-driving capability of the interface.

49

Page 48
Image 48
Black Box PQ-8S, PQ-8P manual Host Printing, Host-Port Initialization, Star-Panel Overdrive

PQ-8P, PQ-8S specifications

The Black Box PQ-8S and PQ-8P are advanced power quality analyzers designed for professionals seeking to monitor, analyze, and improve the electrical efficiency of their systems. These devices stand out in the market due to their robust features, sophisticated technology, and user-friendly interface, making them essential tools for electrical engineers and facility managers.

One of the standout features of the PQ-8S and PQ-8P is their ability to conduct precise power quality monitoring. Both models are equipped with high-resolution sampling rates, allowing for accurate capture of transient events and fluctuations in power quality. This capability is crucial for diagnosing issues such as voltage sags, swells, interruptions, and harmonics, which can lead to equipment malfunction or failure if left unchecked.

The PQ-8S is tailored for three-phase systems, making it ideal for industrial applications that require comprehensive analysis of three-phase power flows. Meanwhile, the PQ-8P, designed for single-phase applications, is particularly useful in residential or light commercial settings. Each model features an intuitive touchscreen interface, enabling users to navigate through data and settings effortlessly.

Data logging and extensive reporting are central to both models. They can store multiple parameters, such as voltage, current, and frequency, for prolonged periods, which assists in trend analysis and long-term monitoring. The onboard memory capacity allows users to access historical data for thorough evaluations and audits without requiring constant device connection.

In addition to their analytical prowess, the PQ-8S and PQ-8P emphasize safety and compliance. Both devices are designed with safety features that adhere to international standards, ensuring reliable performance in various environments. Their rugged design makes them suitable for both fieldwork and permanent installations, as they can withstand harsh conditions.

Wireless connectivity options enhance their usability, allowing for remote monitoring and real-time analysis from any location. This feature ensures that issues can be addressed promptly, leading to improved operational efficiency and reduced downtime.

In conclusion, the Black Box PQ-8S and PQ-8P power quality analyzers offer an impressive combination of features, advanced technologies, and practical characteristics. Their design and functionality make them indispensable tools for anyone looking to maintain optimal power quality in their electrical systems, thus ensuring reliability and efficiency in an increasingly electrified world.