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Handheld beige telephone test tool with coiled cord and belt clip

Plantronics

Plantronics WTS-501 PC Tool 51323.001

SKU CH-E75X-FPVRA MPN 51323.001

A network testing handset with polarity indicator, tone or pulse dialing, 10-number memory, 31-digit redial and high-impedance monitor

  • SpecificationsProduct Type:Network Testing Device
  • Network testing with integrated voice circuitry for clear levels
  • 10-number memory plus 31-digit redial for quick access
  • Switchable tone/pulse dialing and monitor inside handgrip
  • 12 dB volume gain with voltage and transient protection
  • RJ11X plug, five-way clips and spade cord for flexible hookup

Plantronics WTS-501 Service Tool

The Plantronics WTS-501 is a hand-held network and PC service tool designed for telephone line testing and maintenance. It integrates a voice network circuit that manages receive and transmit levels with controlled sidetone. A polarity indicator provides immediate line status verification for technicians. The unit includes a reversible belt clip for convenient carrying during field work.

Analogue Line Interface Constraints

The device connects via an RJ11X modular plug and two five-way test clips for direct line access. A high-impedance monitor mode allows listening without disturbing data, conversations or signalling on the line. Protection circuits guard against excessive voltage, transient ringer signals and direct connection to batteries or power supplies. Switchable tone or pulse dialling supports legacy and current exchange equipment.

Memory Capacity and Operational Limits

Ten number memories store frequently dialled numbers with up to 31 digits each, backed by a 3 volt lithium battery. Last number redial recalls the most recent entry up to 31 digits. A three-position volume control offers up to 12dB of gain for receive level adjustment. The tool requires an active analogue telephone line and is not suited for digital-only or VoIP environments without analogue presentation.

Highlights

  • Network testing with integrated voice circuitry for clear levels
  • 10-number memory plus 31-digit redial for quick access
  • Switchable tone/pulse dialing and monitor inside handgrip
  • 12 dB volume gain with voltage and transient protection
  • RJ11X plug, five-way clips and spade cord for flexible hookup

Specifications

BrandPlantronics
ModelWTS-501
SpecificationsProduct Type:Network Testing Device
Shipping weight0.91 kg
Package size25 × 25 × 25 mm

Questions about this item

Which Plantronics WTS-501 variant should I choose for network testing?

The WTS-501 is a single model network testing device with no alternative versions or capacities listed.

What does the 12 dB gain figure mean when I use this handset on a live line?

The three-position volume control provides up to 12 dB of gain to boost receive levels during testing.

What interface does the RJ11X plug support and what does it limit in practice?

The modular RJ11X plug connects to standard telephone jacks for line access and test clip attachment.

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