3M Ball Marker 1401-XR — Underground Telephone Marker
The 3M Ball Marker 1401-XR is a passive, spherical underground marker from 3M intended for marking telephone installations. The product contains a passive antenna encapsulated in a water-resistant polyethylene shell and is designed to operate without an external power source. Its self-levelling construction keeps the marker in a horizontal position after installation.
Functional Characteristics
- Passive antenna encapsulated in water-resistant polyethylene
- Self-levelling design for horizontal positioning
- No external power source required
- Specified operating temperature: −20°C to 50°C (−4°F to 122°F)
- Recommended burial depth: 1.53 m (approx. 1.5 m) for the telephone marker
Documentation
Further technical information and installation guides are available from the manufacturer. See datasheet from the manufacturer.
Typical Applications
The 3M Ball Marker 1401-XR is specified for marking underground telephone utilities and is used to indicate the location of telephone cables or telephone installations during burial. The product's passive operation and design for burial make it suitable for permanent placement where passive marking of telephone infrastructure is required.
Specifications
- Product Name: 3M Ball Marker 1401-XR
- Type: Passive spherical underground marker
- Material: Water-resistant polyethylene (shell) [stated in manufacturer's text]
- Operating Temperature: −20°C to 50°C (−4°F to 122°F)
- Burial Depth: 1.53 m (approx. 1.5 m) for the telephone marker
- Power: No external power source required (passive device)
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