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เครื่องตรวจเช็คสัญญาณโทรศัพท์ FLUKE Networks Telephone Test Set รุ่น TS 54 TDR
Ten testing functions include:
  • TDR – find cable length measurement and locate faults on virtually all types of cable including twisted pair, coaxial, and parallel conductors
  • Toner – five separate tones for fast and easy differentiation between multiple wire pairs
  • SmartTone® – short the correct pair and tone changes for exact pair identification
  • Data indication – warns when data is present on the line
  • Voltage indication/measurement – identifies potential line problems
  • Current (mA) indication/measurement – verifies sufficient line current
  • Caller-ID with Call Waiting CID – verifies functional service
  • DTMF Digit Grabbing – isolates faulty customer premise equipment
  • Detects dial tone, places and receives calls
  • Polarity
Specifications
Electrical
Current range (Off-hook)10 mA to 100 mA
DC Resistance
Off-hook150 Ω nominal
On-hook>3 M Ω
AC Impedance
Off-hook600 Ω nominal; 300 Hz to 3400 Hz
On-hook>120 kΩ 300 Hz to 3400 Hz
Headset impedance32 Ω
Rotary Dial Output
Pulsing Rate10 pps ±1 pps
Break/make ratio60/40
Interdigit interval>300 ms
Resistance during break>100 kΩ
DTMF Output
Tone frequency error±1.5 % maximum
Tone Level-3 dBm combined (typical)
High versus low tone difference2 dB ± 2 dB
Speed Dialing
Memory capacity9 speed dial memoriesof 23 digits, plus one last number redial memory
PBX pause durationUser programmable; default of 4 seconds
Hook flash durationUser programmable; default of 500 ms
Automatic shut-off durationUser programmable; default of 2 minutes
Voltage measurement
Range4 V dc to 140 V dc
Current measurement
Range0 mA to 100 mA
TDR
Range3,000 feet (914 m)
Accuracy±2 m ±5 %
SmartTone toner
FrequenciesSteady tone: 950 Hz
Power
Battery type9 V alkaline battery
Physical
Measurement8.3 in x 3.2 in x 2.6 in (211 mm x 81 mm x 66 mm) (without belt)
Weight1.16 lb (0.53 kg) (without belt clip)
Water resistanceThe test set is rain and moisture resistant and IP64 rated
Temperature Range
Handset speech and dialing functions-22°F to 140 °F (-30°C to 60°C)
LCD function-13°F to 140°F (-25°C to 60°C)
Storage-22°F to 150°F (-30°C to 66°C)
AltitudeTo 10,000 ft. (3,000 m) max
Relative Humidity95% to 30°C
75% to 40°C
45% to 50°C
30% to 60°C
Safety
Regulatory complianceComplies with ANSI/ISA 82.02.01 (61010-1) 2004, CAN/CSA-C22.2 No 61010-1-04, UL 61010-1 (2004) and IEC 61010-1:2010 for measurement category I, 300 V dc maximum, pollution degree 2
Maximum transient voltage1500 V
EMCComplies with EMC EN61326-1