Triplett Fox 2 & Hound 3 – PN: 3399 - Manual (Page 9)

9
5: Specifications
5.1: FOX 2 Specifications
5.1.1: Telephone Line Polarity Test:
Indication: Red and Green LEDs light for Normal and
Reversed polarity
Load: Approx. 13mA at 50VDC (usually less than off-hook
recognition current)
Protection: Tolerates momentary 120VAC Line Cross
without damage.
5.1.2: Telephone Line Ringer and Visual Ring Indication:
Indication: Red and Green LEDs light simultaneously,
Beeper sounds
Protection: Tolerates momentary 120VAC Line Cross
without damage.
5.1.3: Tracer Tone (with fresh battery):
Waveform: Differentiated Square Wave
Level: Approx. 12Vpp (+5dBu, 600 Ohm) into an open
circuit (unterminated cable or telephone line)
Approx. 4Vpp (-20dBm) into a 600 Ohm load
(terminated telephone line)
Frequencies: 4 frequencies located between 600Hz and
2000Hz, depending on user setting
Types: Warble, Continuous, Pulse
Audio: Low level pilot tone verifies tracer tone is active
True Trace Cadence: Slow - approx 2Hz
Fast - approx 7Hz