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Bell and ETSI-compliant telephone test set with large angled-nose alligator clips and 90 ms spill-through response, built for dependable telephone line testing and troubleshooting.
Bell and ETSI-compliant telephone test set with large angled-nose alligator clips and 90 ms spill-through response, built for dependable telephone line testing and troubleshooting.
The Alert 340 Test Telephone (A340) incorporates all the Nautilus design features making it ideal for the harsh environment of the Outside Plant. DSL filters are now fitted as standard to reflect the prevalence of this particular technology within the telecommunications sector. A340 xDSL compatible Test Telephones offer Digital Services Protection enabling safe operation in situations where telephone wiring may be carrying Digital traffic, Voltage feed to remote electronics or Hazardous voltages that result from fault conditions or misuse of the cable. The A340 also features loud-speaking (listen only) capability.
Selecting “off hook” mode will stop the alarm signal and loop the line without damage to the test set. If the alarm signal persists, it indicates that the voltage on the line is above 120V. In this case the line is not looped avoiding damage to the test set as well as alerting the user to the presence of hazardous voltages.
The A340 models of the Nautilus test telephone range offer the essential features that every telephone technician needs; super high impedance monitoring of the line so as to pose as little risk as possible to parallel data services plus protection and warning of conditions such as high voltage and excess current. See Models Tab for available options.
Features
| Electrical | |
| Loop Limit | 5kΩ |
| Minimum Loop Current | 10mA |
| Max. Off-Hook DC Resistance | 300Ω |
| Min. DC Resistance in: Idle Monitor and Lockout | 10MΩ at 300VDC |
| Min. AC Impedance in Monitor | 400kΩ at 1kHz |
| Span Power Lockout Range min: | 120VDC |
| Span Power Lockout Range max: | 450VDC |
| Pulse Dial | |
| Pulse rate | 10pps +/- 0.1pps |
| Break / Make | 60/40% +/- 1% |
| Interdigit Interval | 800 +/- 50mS |
| DTMF Output | |
| Tone Level | -6dBm |
| Tone Frequency error | ± 1% max |
| Tone Twist | 2dB ±1dB |
| Flash Duration | 100mS nominal |
| Memory Dialing | |
| Stored Number Capacity | 10 plus LNR |
| Stored Number Length | 32 digit/stored number |
| PBX Pause | 4 seconds |
| Power Source | |
| Battery | 1 x 9V Alkaline |
| Battery Life: Nominal: | 3 months |
| Continuous loudspeaking: | 30 hours |
| Low Battery | Visual and audible indication |
| Auto Shut-off | 5 minutes with no line DC, 20 with |
| Environment | |
| Operating Temperature | -29.2 to 140°F (-34 to 60°C) |
| Storage Temperature | -58 to 167°F (-50 to 75°C) |
| Water Resistance | IP: 67 per IEC 60529 |
| Physical Shock | 6m onto concrete |
| Physical | |
| Dimensions | 9.76 x 2.76 x 3.39" (248 x 70 x 86 mm) |
| Weight | 1.32 lbs (0.6 kg) |
| Warranty | |
| Length | 3 years |
| Electrical | |
| Loop Limit | 5kΩ |
| Minimum Loop Current | 10mA |
| Max. Off-Hook DC Resistance | 300Ω |
| Min. DC Resistance in: Idle Monitor and Lockout | 10MΩ at 300VDC |
| Min. AC Impedance in Monitor | 400kΩ at 1kHz |
| Span Power Lockout Range min: | 120VDC |
| Span Power Lockout Range max: | 450VDC |
| Pulse Dial | |
| Pulse rate | 10pps +/- 0.1pps |
| Break / Make | 60/40% +/- 1% |
| Interdigit Interval | 800 +/- 50mS |
| DTMF Output | |
| Tone Level | -6dBm |
| Tone Frequency error | ± 1% max |
| Tone Twist | 2dB ±1dB |
| Flash Duration | 100mS nominal |
| Memory Dialing | |
| Stored Number Capacity | 10 plus LNR |
| Stored Number Length | 32 digit/stored number |
| PBX Pause | 4 seconds |
| Power Source | |
| Battery | 1 x 9V Alkaline |
| Battery Life: Nominal: | 3 months |
| Continuous loudspeaking: | 30 hours |
| Low Battery | Visual and audible indication |
| Auto Shut-off | 5 minutes with no line DC, 20 with |
| Environment | |
| Operating Temperature | -29.2 to 140°F (-34 to 60°C) |
| Storage Temperature | -58 to 167°F (-50 to 75°C) |
| Water Resistance | IP: 67 per IEC 60529 |
| Physical Shock | 6m onto concrete |
| Physical | |
| Dimensions | 9.76 x 2.76 x 3.39" (248 x 70 x 86 mm) |
| Weight | 1.32 lbs (0.6 kg) |
| Warranty | |
| Length | 3 years |
