TS52 PRO Telephone Test Set with Angled Bed-of-Nails and Piercing Pin Clips

The Fluke Networks TS52 Pro telephone test set, available with various line cord connectors to suit specific applications, is designed for outside plant use to detect dial tone and polarity, place and receive calls, indicate line voltage and current, and verify caller ID service; has a two-way, adjustable-volume speakerphone for hands-free conversation during testing of telephone lines; tests POTS (plain old telephone service) quality on live DSL lines without disrupting data services; and stores up to ten 23-digit telephone numbers which can be speed-dialed via the keypad. It provides tone or pulse operation. The test set has two basic modes of operation: talk mode for off-hook operations including verifying dialing and receiving calls, and monitor mode for on-hook operations including checking for an idle line, listening for line noise, measuring DC voltage on the line, and capturing DTMF (dual-tone multi-frequency) tones to check for proper signaling. In monitor mode, the test set provides high-impedance monitoring of lines without disrupting service. When switching to talk mode, the data lockout feature tests the line for high-speed data signals and remains on hook and beeps if such signals are detected. The lockout can be overridden to pull dial tone from a noise line. This test set meets IEC (International Electrotechnical Commission) safety standard 61010-1:2010 and is rated for CAT I installations to 300 VDC, which covers equipment on circuits not directly connected to mains. It passes a 20-foot (6 m) drop test and resists rain and moisture. The high-visibility glow-in-the-dark keypad has 12 standard dialing keys including star and pound, and function keys to store, recall, and redial numbers and to pause for accessing a second dial tone when dialing through a PBX (private branch exchange), among other functions. A backlit LCD tracks functions and test status, and displays line voltage from 0 to 140 VDC and current from 0 to 120 mA. At a voltage greater than 140 VDC, the test set locks out and will not allow off-hook operation. The test set is made of high-impact plastic and turns on automatically when clipped to an active line. A spring-loaded belt clip provides a secure hold on belt loops and D-rings and can be attached to either end of the test set. Additional specifications include various environmental operating conditions. Telephone test sets, also called butt sets, are used by telecom technicians to troubleshoot and maintain copper-wire voice-subscriber lines.

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