A butt set that isn't DSL-safe is a liability on modern plant — bridge onto the wrong pair in talk mode and you just knocked out someone's internet.
The Tempo Tele-Mate TM-500 is built for today's mixed analog/DSL reality: its high-impedance monitor mode lets you listen on a line without disrupting existing traffic, safe on DSL-enabled lines without an external filter. It's the modern successor to the classic craft set, from the brand that's been on telecom belts for decades.
The TM-500 is line-powered — no batteries, ever — so it's always ready when you clip on.
The working feature set covers the daily punch list: LED-indicated polarity test, tone and pulse dialing for any exchange, 10-number speed dial, 32-digit last-number redial with pause, adjustable volume with mute, and flash for timed break recall. Over-voltage and over-current protection means a crossed pair costs you a moment, not a test set. Even the keypad is field-thought-out: it's luminescent, so it glows in a dark pedestal or crawlspace.
Hands-free is in the box: use it as a handset, or plug in the included headset and keep both hands on the punchdown.
ABN "bed-of-nails" crocodile clips are included for piercing insulated conductors, connecting through the RJ11 socket. Made in the USA and warranted by Tempo for the useful life of the product — for installing, servicing, and maintaining voice across pedestals, cross-boxes, NIDs, and 66 blocks, this is the butt set to standardize on.
Features:
- DSL-compatible — safe on DSL-enabled lines, no external filter needed
- High-impedance monitor mode: listen without disrupting data traffic
- Line-powered design — no batteries required
- Polarity test with LED indicator; tone and pulse dialing
- 10-number speed dial; 32-digit last number redial with pause; flash (timed break recall)
- Adjustable volume control with mute; luminescent glow-in-the-dark keypad
- Over-voltage and over-current protection
- Includes headset for hands-free use and ABN bed-of-nails croc clips (RJ11 socket)
Specifications:
- Model: Tempo Communications TM-500 Tele-Mate
- Type: Telephone test set (butt set)
- Power: Line powered
- Monitor: High impedance, DSL-safe
- Dialing: Tone / pulse
- Dimensions: 9.25" x 2.5" x 3.25" (235 x 64 x 83 mm)
- Included: Headset, ABN bed-of-nails clips, manual
- Origin: Made in USA
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