Managing your appliance using a dial-In PPP connection

When dial-in support is enabled, the appliance places the external modem in auto-answer mode. This allows you to initiate a dial-in connection to the appliance through the external modem. To authenticate a

PPPconnection, you must provide a user ID and password for a user account with Administrator access. Once the PPP connection is established, you can access the appliance using the IP address 192.168.254.1.

Note: IP traffic is not routed through the appliance, so you cannot use the appliance PPP connection to access other devices or systems on the same Ethernet network as the appliance, if the appliance is connected to an Ethernet network as well as a modem.

PPPperformance considerations

PPP/Modem connections are slower than Ethernet and wireless network connections. Using SSL to communicate with an appliance over a PPP/Modem link slows communications further. If the appliance attempts to send too much data over a PPP connection, some events never get delivered or get delivered long after they occur.

When monitoring or managing an appliance connected to your network using only a PPP/Modem connection, some functions are unavailable and performance is limited. The use of NetBotz Surveillance with StruxureWare Data Center Expert on appliances connected to the network using PPP is not supported. Performance can become worse if the PPP connection is lower than 25000 V42bis or the appliance is configured to send large files such as images and audio. Some performance issues include:

•Loading the Alerts View: If the appliance has a large number of active or resolved alerts stored on the appliance, an External Storage System, or the NAS, loading the Alerts View may take a long time, or the Alerts view may fail to load. If this is an issue, limit the number of alerts by clearing the Include “Returned to Normal” Alerts check box. Once you have successfully loaded the Alerts View, set the Refresh Interval value to None. If you do not do this, Advanced View periodically reloads the Alerts View. This impacts the amount of data that the appliance can send over the PPP connection and could prevent you from loading alerts or other data.

•Streaming Audio: Streaming audio does not perform well over PPP/Modem connections. If you enable streaming audio, you may encounter large gaps in the audio stream.

•Access by Multiple Clients: If more than one client is accessing an appliance over a PPP/Modem connection, performance is degraded.

•Delivering Higher Resolution Images, Setting High Frame Rates: If your appliance generates alert notifications that include large amounts of image data, delivery of the notifications is delayed due to the slow PPP connection. If too many notifications are delayed, some notifications will not be sent. Appliances communicating using PPP should have their Camera Pod Capture settings and Cameras View frame rates set to the lowest acceptable values: 320x240; 1 frame every 10 seconds respectively.

•Viewing Alert Captures: Loading and viewing alerts that include a large number of image captures or audio clips can take a long time. If the alert includes audio, the audio may not load properly and may not be synchronized with the images. Loading alerts that include many image captures in the Web Client over a PPP/modem connection can be slow and can cause the browser to become unstable. Therefore, when using a PPP connection to view alerts, use Advanced View.

•Performing Multiple Alert Actions Simultaneously: Appliances communicating over a PPP connection should not be configured to perform more than two alert actions simultaneously, particularly if the alert actions include sending image captures or if any of the actions use the Send

NetBotz Appliance User’s Guide

91

Page 100 Page 102
Page 101
Image 101
APC NBRK0570, NBRK0550, NBRK0450 Managing your appliance using a dial-In PPP connection, PPP performance considerations
Page 100 Page 102

NBRK0550, NBRK0450, NBRK0570 specifications

APC offers a range of high-quality uninterruptible power supplies (UPS) designed to provide reliable power protection. Among these options are the NBRK0550, NBRK0450, and NBRK0570 models, each equipped with advanced features aimed at ensuring continuous power availability for critical devices.

The APC NBRK0550 is built to offer 550 VA / 330 W of output power. It boasts a compact design, making it suitable for both home and small office use. One of its main features includes Automatic Voltage Regulation (AVR), which stabilizes voltage levels to protect connected equipment from surges, spikes, and brownouts. The device includes several outlets for easy connection of multiple devices, and its LCD display provides real-time information about power conditions, battery status, and estimated runtime.

Next in line is the APC NBRK0450 model, which provides 450 VA / 270 W of power. This model is highly efficient and also integrates AVR technology. Its lightweight design facilitates easy movement, making it a preferred choice for users who need portable power solutions. The NBRK0450 offers a user-friendly interface, featuring LED indicators that will alert users about battery charge levels and operational status. The unit ensures reliable performance, ideal for protecting networking equipment, personal computers, and other sensitive electronics.

Lastly, the APC NBRK0570 stands out with its impressive output of 570 VA / 340 W. Like its counterparts, it features AVR technology for enhanced voltage stability. The NBRK0570 is designed for scalability, perfectly accommodating additional devices with its multiple outlets. The model is equipped with a USB port, allowing for easy connectivity with monitoring software for real-time tracking of power usage and battery health. Its advanced battery management system extends battery life and optimizes performance, ensuring that users remain connected during outages.

All three APC models—NBRK0550, NBRK0450, and NBRK0570—are designed with user-friendly interfaces, making them easy to manage. They prioritize essential features such as surge protection, battery health monitoring, and smart shutdown capabilities. The integration of robust technologies in these products ensures a reliable power supply, safeguarding electronic devices against unexpected power failures and contributing to seamless operation in both home and office environments.
Top Page Image Contents