The ProTek jr+ monitors crucial site equipment and alerts technical staff by voice, modem, pager or IP network when any input varies outside of user programmed limits. The jr+ can easily interface with any equipment outputting a discrete digital level or DC voltage. Inexpensive sensors are available for the measurement of current, voltage, RF power, temperature, or humidity. Additional parameters may be monitored on a custom basis. Any device outputting contact closure alarms, such as intrusion or fire alarms, tower light controllers, link receivers, or uninterruptible power supplies are easily interfaced. Additionally, two external audio sources may be patched through to the user via telephone. Optional support for ASCII stream devices facilitates control and monitoring of intelligent equipment, allowing a technician to remotely access routers, controllers, transmitters, or other RS-232 equipment via the PSTN using the jr+ modem.Unlike other systems the jr+ is ready to go out of the box, without requiring the time-consuming installation of expensive “options.” The jr+‘s built-in modem allows communication with any terminal or computer running common terminal emulation software. An internal speech synthesizer provides user-friendly prompts and responses when accessing by DTMF capable telephone. If telephone service is not available at the site, a cellular or other two-way radio may be used.The jr+ is not limited to simply reporting failures, however. The jr+ can respond as programmed by the user, switching in backup equipment or forcing activity, while recording up to 127 events in the history log. Each input may be programmed as a major or minor alarm, or may qualify any other input. A return to normal capability alerts the technician if input generating a major alarm returns to its nominal state and a daily Status Report confirms continuing proper operation. The ProTek jr+ is designed for small systems with a limited number of inputs. The basic features are as follows:
- Analog Inputs
- Digital Inputs
- Input Activity Tests
- Audio Ports
- Alarm Types
- Relay/Control Outputs
- Event History Recording
- Alert Calls
- Push-button Phone Control
- Communications Interface
- PC-Based Reporting System
Analog Inputs: Each input can measure DC voltages from 0 VDC to +40 VDC with an accuracy of 2.5%. Upper and lower limits are programmable in Volts DC, Watts, Degrees Celsius, and % Humidity. Every input may have a programmable time delay (0-255 seconds) and a programmable qualifier (another input). Each input can be disabled by the user via computer or telephone. The ProTek jr+ has 4 analog inputs.
Digital Inputs: These inputs are designed to accept dry relay contact closures or any two state signal where low = -12 to +0.8 VDC and High = +2.4 to +12 VDC. Each input can be programmed active High or Low, allowing either normally open or normally closed contacts to be accommodated. Since each input is pulled up to +5 VDC, the default state is High, simplifying the interconnection of contact closures to merely connecting one contact to digital ground and the other contact to the input. Each input has a programmable time delay (0-255 seconds) and a programmable qualifier (another input). Each input can be individually disabled by the user via computer or telephone. Each Digital Input has an associated Time Active Counter that stores the cumulative time that the input has been active since midnight of the current day. At midnight of the current day this value is saved in the Previous Day Time Active Counter, and the Time Active Counter is cleared. At the same time, the Previous Day Time Active Counter is saved in jr+’s non-volatile Event History Log. Thus the user has available many days of data concerning each input’s activity. The ProTek jr+ has 8 inputs.
Input Activity Test: Some Digital Inputs have an associated Activity Test. These tests are invaluable in testing transmitter keylines, but their application is limited only by the user’s creativity. The Maximum Time Active Test is used to cause an alarm whenever the input remains continuously active beyond a user programmable interval (0 to 999 minutes). The No Activity Test checks the input for continuous inactivity beyond a user programmable interval (0 to 999 minutes). The jr+ will then call a user programmed phone number (or activate a Relay Output) to force activity. If no activity is detected after a user programmable Wait Time, an alarm occurs.
Audio Ports: If an external audio source is connected to one of the jr+’s 2 Audio Ports, this signal can be patched through to a user via push-button phone commands. By using the jr+’s Relay Outputs to select from multiple sources, more than one audio source can be monitored by a single port.
Major: If the input goes active (out of limits for an Analog Input and at the programmed active level for a Digital Input), the occurrence is time and date stamped, stored in the Event History Log and an Alert Call Sequence is initiated.
Minor: If the input goes active, the occurrence is time and date stamped and stored in the Event History Log.
Qualifier: In this case, the input is used only to qualify another input or to control a Relay Output or to capture the time a Digital Input is active.
Relay/Control Outputs: The jr+’s 8 Relay/Control Outputs can provide extensive remote control capability. Each output can be programmed to be controlled by any input (in fact, multiple inputs can control a single output). Inputs can also be programmed to control multiple outputs allowing the user to design a sophisticated control scheme. Each Relay/Control Output can be programmed to follow the input (activated whenever the input is active) or operate in a Latched mode, in which case the output must be reset by user command. With commands entered from a computer or a push-button phone, the user can command any output On or Off (overriding the controlling input) or Release it (either from user control of from a Latched mode).
Event History Recording: The jr+ logs all significant events in non-volatile memory. Each event is time and date stamped and includes a description of the event. Each time an input programmed as a Minor or Major Alarm goes active, the event is recorded. In addition, whenever an input returns to a normal state, that return is recorded. All user commands are recorded whether computer or telephone initiated. The loss and return of AC power is recorded. Any output jr+ call failure is also recorded. ProTek jr+ stores 127 events.
Alert Calls: The jr+ can be programmed to call up to 8 phone numbers in response to an active Major Alarm input. The jr+ can call a person, a computer, or a pager. When a person is called, the jr+ sends an audible alternating on/off tone prior to speaking the alert message. Any type of pager can be alerted. The number of attempts, sequence of calling, and time between attempts is all user programmable. The jr+ can also be programmed to call a computer or person daily and send a Status Report.
Push-button Phone Control: By calling the jr+ from a push-button phone, the user can execute 13 commands. A speech synthesizer facilitates menu and command selection. These commands include Enable/Disable Input, Enable/Disable Input Activity Testing, Enable/Disable Alert Calls, Force Relay Outputs On/Off, Release Relay Outputs. The user may obtain a spoken Status Report, listen to Audio Ports and request the level of any input. The jr+ speaks the actual level of the desired input (for example it may say ‘Input A1 is 22 Watts’).
Communications Interface: The jr+ has an RJ11 modular jack for direct connection to a POTS (plain old telephone service) line. The jr+’s built-in modern allows communication with any Video Display Terminal or computer with terminal emulation software (no special software is required since all screen software is resident in the jr+). An internal speech synthesizer allows communications with a person and provides user friendly prompts when executing push-button phone commands. The jr+ will speak the level of any input to you as well as report the system status. If telephone service is not available at the remote site, a cellular phone interface is available as well as several different two-way radio systems.
PC-Based Reporting System: For the large user, this system will capture and collate all alert calls. In addition, it will alert the computer operator of any jr+ that has not received a callback from the local technician.