Tempo DigAlert 350 Telephone Test Set

In today’s evolving world of communications, technicians encounter an ever increasing amount of data on copper lines. Whether installing, servicing or simply maintaining voice service, the technician must consider the possible presence of digital traffic. Tempo’s DigAlert 350 Test Sets offer the latest in data protection, allowing technicians to test the POTS service on a live ADSL line without fear of bringing down the data service.

With this innovative design, Tempo set new, unmatched standards in both quality and customer satisfaction. Our test sets give meaning to the term “weatherproof” with an award-winning, waterproof case design that allows technicians to operate with confidence in even the most extreme weather conditions. Other key advancements include a high-voltage alarm and a quick release, non-metallic belt clip composed of Verton® RF, a strong, lightweight structural composite. This combination of rugged technology enables Tempo to offer the best warranty in the industry: 3 years.

In addition to all the features of the A340 range, D350 offers DigAlert digital services detection and lockout. Warning the user automatically if they attempt to go off-hook on a line that could be carrying a digital service. This lockout can be quickly overridden if needed.

The Tempo DigAlert350 Telephone Test set includes the following features:

• Detection and Lockout of Data Services: T-1, E1, ISDN (BRI xDSL Filters and PRI), SW56, ADSL, HDSL, VDSL
• Three year warranty
• Digital circuit safety
• Voltage alarm and Lock-out
• Loudspeaker listening
• Volume control
• Microphone mute
• Talk/Monitor status LED
• Battery low audible tone
• Tone/ pulse dialling
• Redial (10x24 digit memories)
• Super Hi Impedance polarity
• Super Hi Impedance monitor
• High monitor level
• Selectable ringer tones
• High impact resistance
• High chemical resistance
• Replaceable premium cordset
• Easy shoulder placement
• Unique glass reinforced nylon quick release belt clip

About Tempo Nautilus:

Tempo's Nautilus range of extremely tough and weatherproof test telephones has been trusted by major global telephone companies since 1999. Built to withstand years of use literally "in the field", constructed from a super-tough polymer alloy and sealed with resilient and long life silicone seals. The range are available with Bell (north American) and ETSI (European and associated markets) settings. Various models are available within each telephony settings region with and without loud-speaking or full-hands-free and with and without DigAlert advanced "Digital Services Protection" lockout features. All models are equipped with overvoltage and overcurrent warning and lockout and all require a 9V battery for operation.

Digital Services Protection – In the “on hook” mode, on connection to a circuit, the Test Telephone sounds an alarm to alert the user to the presence of voltages above 75V to 80V DC. Such voltages are normally present on circuits carrying digital services. If the circuit is active, the user can select the high impedance MONITOR mode and listen to the sound to determine if the circuit is carrying digital services without disrupting the traffic. This is present in all models and can be overridden if the extended voltage is expected. If the unit detects a voltage above 120 V DC, this sounds a different alarm and cannot be overridden as this is definitely not a POTS line.

The DigAlert™ Digital Services Detection and Lockout feature present in D350 and D361 models adds another layer of protection for digital services carried on telephony twisted pairs. Detecting "out-of-band" signals and preventing immediate "off-hook" this helps ensure that users of digital services are disrupted as little as possible during maintenance works. Effectively preventing the old practice of "tag running" and helping to ensure technicians only go "off-hook" when they need to. The high impedance monitor and polarity test, plus built-in xDSL blocking filter help to minimize in service errors that may occur to the DSL service.

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