This feature-rich test set is a necessity for a variety of installs. The TS25D Test Set features data lockout and lockout override, making you completely safe in talk or monitor mode. The DSL/POTS filtering technology allows you to safely draw dial tone without downing DSL.
A built-in analog tone generator simplifies wire identification with a probe. An amplified speaker makes monitoring the line hands-free, so you can keep working. The talk battery function provides voltage to carry voice conversation on non-powered pairs.
All in a compact unit with an oversized robust liquid crystal display (LCD) that makes the intuitive, common-sense menus easy-to-read and use.
The TS®25D Test Set top features include:
| Model Number/Name | Description |
| 25501004 | TS25D test set with 346A plug |
| 25501009 | TS25D test set with ABN |
| 25501109 | TS25D test set with ABN kit (includes pouch and earpiece) |
| Model Number/Name | Description |
| 25500100 | Earpiece, TS25D test set |
| 25500300 | TS25D battery door with belt clip |
| 25500400 | Pouch only, TS25D |
| Electrical | |
| Return Loss | >14 dB (ref 600 Ω) |
| DC Resistance | |
| Off-Hook On-Hook | 150 Ω nominal >1 MΩ |
AC Impedance | |
Off-Hook | 600 Ω nominal; 300 Hz to 3400 Hz |
Rotary Dial Output | |
Pulsing Rate | 10 pps ±1 pps |
Break/Make Ratio | 60/40 |
Interdigit Interval | >300 ms |
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. |
Notes Specifications subject to change without notice. This product has been safety certified for indoor use only. | |
| Title/Description | Download | |
TS25D Test Set Central Office Version Data Sheet
TS25D Test Set Central Office Version Data Sheet | Download PDF (534 KB) |
| Title/Description | Download | |
Fluke Networks Solutions Catalog
Products for the installation, testing, monitoring and analysis of enterprise and telecommunication networks | Download PDF (8.33 MB) |
| Title/Description | Demo | |
Terminate to Test Demo | View Demo |

