ACT Meters 452 Telephone Test Set

The ACT452 is a new low cost Telephone Test Set designed to enable alarm technicians to test lines and verify signals sent to the Alarm Receiving Centre during commissioning and maintenance inspections. The tester has Talk and Monitor modes to enable lines to be tested without disrupting signals. The tester also incudes DSP (Digital Service Protection) which enables safe operation where telephone wiring may carry digital signals, hazardous voltages or fault conditions. A “POL” test button with Green/Red LED’s indicates correct or reverse “A/B” polarity connection.

Supplied with line cable with Red/Black Crock-Clips and BT connector.

Specification:-

• Long line Operation: With a 48V feed >5KΩ loop, minimum current <10mA.
• DC Resistance: Off-hook TALK mode: <300Ω. On-hook Idle: >5MΩ (10uA @ 48VDC).
• Monitor: >5MΩ (20uA @ 100VDC).
• Monitor Impedance: >100KΩ @ 1KHz.
• Dialling: Pulse Dial: 100pps, break 60%. DTMF/Tone dial level: -3dBm typical. Flash/Timed
• Break Recall: 100mS (switchable 600mS, 300mS).
• Memory Dialling: 32 digit Last Number Redial.
• PBX Pause: 2 seconds (can be chained and stored in memory).
• Alkaline Battery LED: 1 year normal use. Low battery indication, 2 hours remaining
• continuous use.
• Automatic Power Shut Off: 5 minutes after disconnection.
• Environmental: Operating temp: -5C to +40C. Weatherproof to IP30.