High Impedance "Safe For Data" Monitor > 120K Ohms
UL Listed for Safety
Meets 12' and 20' drop tests
Overvoltage/Overcurrent Protection
Built-in ringer to indicate incoming calls
Last Number Redial - 23 digits - T/P
DTMF (tone) and Rotary (pulse) Dialing
LEDs for polarity indication
Microphone Mute for noisy locations
Hook Flash - PBX pause
Large rust-proof belt clip
Industry standard 5 ft. craft-quality cordset
Bent nose clips, BON, Spike
Modular cordset connection with patented strain relief
Enclosure is impact-resistant to withstand craft use
Rubber gaskets for rain/humidity protection
Ergonomic shape allows one-hand operation
Non-slip Shoulder Pad
Full 18 month warranty period
Made in France
Description
The HD-4 has all of the most needed features in a low cost craft-grade design. Extremely rugged and reliable, the HD-4 model is THE value leader in basic craft-quality testsets.
Models, Options, & Accessories
Model
Description
List Price
Sale Price
HD-4
Craft Quality Testset - Rugged and Affordable, with SIGNALSHIELD DSL/data protection, "Safe for Data" High Impedance Monitor, for basic installation and repair.
$151.95
$139.79
Model
Accessories
List Price
Sale Price
MCS-001
Five foot length with craft quality bent nose alligator clips, piercing spike, and bed-of-nails. All testsets except the HD-7 and the HD-6CBL are provided with standard MCS-001 cordsets.
$20.00
$18.40
MCS-002
Same as MCS-001 but without bed-of-nails.
$20.00
$18.40
Specifications
ELECTRICAL
Talk Mode
Loop Limit
5000 Ohms max at 48 VDC, 10mA 20 Mi. @ 22 Ga., 9 Mi. @ 26 Ga.
Monitor Mode
Leakage
Higher than 500K Ohms
Impedance
Greater than 120K Ohms
Return Loss @ 600 Ohms
Greater than 14dB from 300 to 3400 Hz
ROTARY DIAL OUTPUT
Pulse Rate
10 pps +/- 10 %
M/B Ratio
60/40% +/- 2%
Inter-digit Interval
800 ms typical
Leakage During Break
Greater than 100KOhms Less than 1 mA
DTMF OUTPUT
Tone Frequency Error
+/- 1.5% maximum
Tone Level
High group
- 6 dBm +/- 2dB
Low group
- 8 dBm +/- 2dB
High/Low Tone - twist
2 dB +/- 1 dB
MEMORY DIALING
Types
One-Touch, Two-Touch and LNR
Mode
Tone and pulse
Retention
Life of the batteries (30 minutes without batteries)
Capacity
10 x 16 digits (Memory) - Series 6 32 digits (LNR) - Series 6 23 digits (LNR) - Series 4
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