Electrical |
Return Loss | >14 dB (ref 600 Ω) |
DC Resistance |
Off-Hook | 150 Ω nominal |
On-Hook | >1 MΩ |
AC Impedance |
Off-Hook | 600 Ω nominal; 300 Hz to 3400 Hz |
On-Hook | >120 kΩ; 300 Hz to 3400 Hz |
Rotary Dial Output |
Pulsing Rate | 10 pps ±1 pps |
Break/Make Ratio | 60/40 |
Interdigit | >300 ms |
Interval Resistance During Break | >100 kΩ |
DTMF Output |
Tone Frequency Error | ±1.5 % maximum |
Tone Level | –1 dBm combined (typical) |
High versus Low Tone difference | 2 dB ± 2 dB |
Memory Dialing |
Memory Capacity | 10 speed dial memories plus one last number redial memory |
Digit Capacity | 23 digits per memory |
Pause Duration | User programmable Default: 4 seconds |
Hook Flash Duration | User programmable Default: 600 ms |
Automatic Speaker Shut Off Duration |
User programmable TS25D default | 5 minutes TS25D CO default: 2 minutes |
Battery | 9 V alkaline or lithium battery |
Physical |
Measurement | 7.8 in x 2.7 in x 1.6 in (20 cm x 6.8 cm x 4 cm) |
Weight | 10 ounces (284 g) |
Environmental |
Temperature Range Operating | 32°F to 122 °F (0 °C to 50 °C) |
Storage | -40 °F to 150 °F (-40 °C to 65 °C) |
Altitude | Up to 10,000 ft (3,000 m) |
Relative Humidity | 5 % to 95 % |
Certifications and Compliance | Conformité Européenne. Conforms to relevant European Union directives. |