Tempo Nautilus Test Telephone

The Nautilus range products are designed for a longer operational life and reduced in service maintenance costs. Nautilus products have been subjected to a variety of tests including being submerged in water for up to 30 minutes, vibration, shock, bump, free-fall and impact, simulating transport and everyday knocks. We are so confident in these products, we 
extend the warranty to three years on our Nautilus range (excludes wear and tear, e.g. cordsets or abuse).

Nautilus phones are available in the following models:

The Alert 340 from Tempo is a professional butt-in test telephone in robust case sealed to IP67 standards and supplied with 3 year warranty. 
With loudspeaker function. Supplied with twin banana plugs/removable croc clips, cord.

The Digalert 350 (300C) and 361 from Tempo are professional test butts used by leading Telcos globally and designed to ease the evolution from old analogue to the new digital age and featuring Digalert, a unique signal monitoring system which alerts the operator when digital traffic is present, preventing the possibility of dropping a digital line or circuit. 

Both test butts have identical features, but the Digalert 361 is a two way hands free version which also features an ADSL type filter that allows it to work on an ADSL line without affecting data transmission.

Alert 340 and common product features:

• DSL Filters
• Digital circuit safety
• Voltage alarm and Lock-out
• Super Hi Impedance monitor
• High monitor level
• Digital Safe Line Monitor
• Adjustable Ringer volume and tones
• IP67 Weatherproofin• Loudspeaker listening
• Speaker Volume Control
• Talk/Monitor status LED
• Battery low audible tone
• Selectable ringer tones
• High impact resistance
• Replaceable premium cordset
• Super Hi Impedance polarity
• Line Polarity Test in any Mode• Tone/pulse dialing
• 10 x 32 digit Speed Dial Memory
• Last Number Redial
• High chemical resistance
• Easy shoulder placement
• Unique ‘Quick Release’ Belt Clip
• Microphone Mute
• Easy-to-use Talk and Monitor Keys
• Audible and Visual Mode Indicators

Digalert 350 adds:

• Detection and Lockout of Data Services: 
T-1, E1, ISDN (BRI and PRI), SW56, xADSL, HDSL

Digalerts 361 adds:

• Two-way Speakerphone (hands-free speech)

Alert 340 supplied with twin banana plugs/removable croc clips, cord.

Specifications

Loop Limit: 5 kΩ ohm
Minimum Loop Current: 10 mA
Maximum Off-hook DC Resistance: 300 Ω ohm
Minimum DC Resistance in Idle,
Monitor and Lockout: 10 M ohm at 300 Vdc
Minimum AC Impedance in Monitor: 400 k ohm at 1 kHz

Span Power Lockout Range:

120 Vdc minimum
450 Vdc maximum

Pulse Rate: 10 pps +/- 0.1 pps
Break/Make: 60/40% +/- 1%
Interdigit Interval: 800 +/- 50 ms
Tone Level: -6 dBm nominal
Tone Frequency Error: +/- 1% maximum
Tone Twist: 2 dB +/- 1 dB
Flash Duration: 100 ms nominal (270 ms option)
Stored Number Capacity: 10 plus last number rediaStored Number Length: 32 digits per stored number
PBX Pause: 4 seconds
9Vdc Alkaline Battery Life: 3 months nominal
30 hrs of continuous loudspeaking
Low Battery: Visual and audible indication
Auto Shut-off: 5 minutes with no line DC
20 minutes with line DC
Operating Temperature: -29°F to 140° F (-34°C to 60°C)
Storage Temperature: -58°F to 167°F (-50°C to 75°C)
Water Resistance: IP67 per IEC 60529 (submersion in one metre of water for 30 minutes)
Physical Shock: 20 foot drop test onto concrete Bellcore TR-TSY-000344

Physical:
• Length: 9.75in (248mm)
• Width: 2.75in (70mm)
• Height: 3.375in (86mm)
• Weight: 1.32lbs with battery

Warranty: Three Years

Please see datasheet for further details

BT Openreach references
Digalert 350 (300C) Ref: 026578

Mills / Tempo  Part Numbers

C00-5052 / 52059242 A340 ETSI 90ms TBR 4mm plugs and Small Crocodile Clips

C00-4269 / 52059241 D350 ETSI 90ms TBR 4mm plugs and Small Crocodile Clips

C00-4270 / 52040076 D361 ETSI 90ms TBR 4mm plugs and Small Crocodile Clips