Fluke Networks TS23 Pro Telephone Test Set

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Manufacturer Description

The Fluke Networks TS23 Pro telephone test set, available with various line cord connectors to suit specific applications, detects dial tone and polarity; places and receives calls; indicates line voltage and current; has a two-way, adjustable-volume speakerphone for hands-free conversation during testing of telephone lines; monitors lines without disrupting service; and stores up to nine 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, and measuring DC voltage on the line. In monitor mode, the test set provides a high impedance coupling to monitor lines without disrupting service. This test set meets IEC (International Electrotechnical Commission) safety standard 61010-1:2010 and is rated for CAT I installations to 300VDC, which covers equipment on circuits not directly connected to mains. It passes a 20' (6m) drop test and is Ingress Protection certified IP64 for protection against dust and splashed water. 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. It has six dual-color LEDs that indicate talk mode, polarity, mute, voltage (VDC), current (mA), and battery status. The voltage LED indicates five different levels of voltage and an alarm sounds to indicate voltage greater than 140VDC. The current indicator flashes red for less than 23mA and flashes green for greater than or equal to 23mA. The test set can be programmed to turn off automatically after one to 60 minutes (default setting is two minutes) of inactivity to conserve battery life, and is made of high-impact plastic. A spring-loaded belt clip at the base of the unit provides a secure hold on belt loops and D-rings, and a jack accommodates a headset (sold separately). 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.

Line current rangeOff-hook: 10 to 100mA
DC resistanceOff-hook: 150? (nominal); on-hook: greater than 3M?
AC impedanceOff-hook: 600? (nominal), 300 to 3,400 Hz; on-hook: greater than 120k?, 300 to 3,400 Hz
Rotary dial pulse rate10 + or – 1 pulses per second
DTMF (dual-tone multi-frequency) tone frequency error+ or – 1.5% maximum
Memory capacityNine 23-digit speed dial numbers, one redial number
Safety ratingsComplies with ANSI/ISA (American National Standards Institute/International Society of Automation) 82.02.01 (61010-1) 2004, Canadian Standards Association CAN/CSA-C22.2 No 61010-1-04, UL (Underwriters Laboratories) 61010-1 (2004), and IEC (International Electrotechnical Commission) 61010-1:2010 for CAT I, 300VDC, pollution degree 2
Agency certifications and standards metCE (European Conformity) marking; Conforms to relevant Australian EMC requirements and Canadian Standards Association standards
Power sourceShared line power; 9V alkaline battery (included) for test set when on-hook and for speaker when off-hook
Dimensions211 x 81 x 66mm/8.3 x 3.2 x 2.6 inches (H x W x D)

*H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Datacom and telecom installation and test devices, such as toners and test sets, check cabling and wiring to help ensure proper connections and operation. Tone generator and probe sets, also called toners, are used to locate, trace, and isolate cables in copper media networks. Telephone test sets, also called butt sets, are specialized telephones that connect to telephone lines to check for proper operation and to isolate trouble. Some test sets incorporate a TDR (time-domain reflectometer) and toner for determining cable length and locating faults. While certain devices may be used on live networks, others are only suitable for inactive networks. Field technicians and installers use these devices to set up, maintain, and troubleshoot datacom and telecom cabling within a building or in outside plant (OSP) applications.

Fluke Networks manufactures tools for network infrastructure installation, testing, certification, and troubleshooting, in copper, fiber, and wireless networks, with its tools widely used by contractors, enterprises, and communication service providers. The company, which operates globally, is based in Everett, WA.

What's in the Box?

  • Fluke Networks TS23 Pro telephone test set
  • 9V battery (for speakerphone)
  • Instructions

Product Features

Detects dial tone and polarity, places and receives calls, indicates line voltage and current, and has a speakerphone for hands-free conversation during testing of telephone lines Available with various line cord connectors to suit specific applications Monitors lines without disrupting service and stores up to nine 23-digit numbers which can be speed-dialed via the keypad Meets IEC safety standard 61010-1:2010 and is rated for CAT I installations to 300VDC, passes a 20' drop test, and is certified IP64 for protection against dust and splashed water High-visibility glow-in-the-dark keypad with standard dialing keys and function keys, along with six dual-color LED indicators

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