ANSI SCTE 171-2016 pdf free download – Passive Network Device (NID) Enclosure Specification.
This specification applies to recommended mechanical, electrical and environmental performance of Network Interface Device enclosures for use in broadband deployment.
The intended location for this device is on the outside of the customer premise.
This specification focuses on non-metallic enclosures.
2. Normative References
The following documents contain provisions, which, through reference in this text, constitute provisions of the standard. At the time of Subcommittee approval, the editions indicated were valid. All standards are subject to revision; and while parties to any agreement based on this standard are encouraged to investigate the possibility of applying the most recent editions of the documents listed below, they are reminded that newer editions of those documents may not be compatible with the referenced version.
• ANSI/NFPA 70, National Electrical Code,
• ASTM B117-90, Standard Method of Salt Spray (Fog) Testing
• ASTM G21, Recommended Practice for Determining Resistance of Synthetic Polymeric Materials to Fungi
• ASTM G155, Standard Practice for Operating Light-Exposure Apparatus (Xenon-Arc Type) With and Without Water for Exposure of nonmetallic Materials, Method “B”
• Underwriters Laboratories UL 94, Tests for Flammability of Plastic Materials
• Underwriters Laboratories UL 746C, Polymeric Materials – Use in Electrical Equipment Evaluations
• Underwriters Laboratories UL 1863, Standard for Communication Circuit Accessories.
3. Informative References
The following documents may provide valuable information to the reader but are not required when complying with this standard.
• No references are applicable
5. Purpose
The purpose of this specification is to recommend a standard set of design requirements for Network Interface Device enclosures which are used to mount and enclose drop components for outdoor broadband applications.
The specification in no way should limit or restrict any manufacturer’s innovation and improvement.
Innovations and improvements are encouraged and this specification may be adjusted when beneficial.
6. General Characteristics
All NIDs that meet the standards proposed by this document shall have the following characteristics and pass the tests and their requirements list herein. See Figures 1-5 for sample drawings of such NIDs.
1. Provide a secure demarcation connection point between the network provider wiring and the subscriber wiring.
2. May provide isolated access between the subscriber and provider within the NID itself.
3. The NID shall have an attached lid or cover.
4. Serve as a convenient test point for verification of coaxial cable, twisted pair or optical cable integrity.
5. Provide a weatherproof housing to increase the long term performance of broadband passive drop related components.
6. House and install coaxial, twisted pair or optical broadband related devices.
7. Provide weatherproof ports for coaxial cable, twisted pair and optical cable.
8. A 3/8” (9.5 mm) long, #6 self-tapping screw inserted into any mounting hole and tightened with a torque of 20 lb-in (2.26 N-m) shall not cause cracking of the mounting hole or mounting surface nor shall the threads strip.
9. The NID enclosure shall be able to contain an electrical bonding point or block.
10. The input cable port shall be sufficient in size to allow for cable with an outside diameter of ½- inches (12.7 mm). All other ports shall accept cable diameters up to 0.405” (10.29 mm).
11. The NID enclosure shall allow for the minimum bending radius of the type of cable used as specified by the manufacturer.
12. Mounting holes or slots shall be of such size and location as to allow orthogonal mounting of the device on a hole centerline pattern/grid of 0.500″ by 0.500″ +/-0.010” (12.7mm x 12.7mm +/- 0.25mm). No through holes are permitted so as to prevent water entry. Mounting holes must accommodate a #6 self-tapping screw, extended a maximum of ½-inches (12.7 mm) into the mounting surface.
13. The NID enclosure shall meet any applicable requirements of ANSI/NFPA 70 National Electrical Code (NEC). In addition, when the NID contains telephony demarcation, it shall meet, as a minimum, the generic requirements for Outdoor Telephone Network Interface Devices listed in this document where applicable.
14. All passive drop components used inside the NID enclosure must meet their applicable SCTE specification.ANSI SCTE 171 pdf download.