Specifications

A-4 System Standards and Specifications
Model No.
Running Head
E&M ports
Bell System TR433801 Digital Channel Bank Requirements and Objectives - November
1982
TR-NWT-000057 Functional Criteria for Digital Loop Carrier System - January
1993
GR-63-CORE Issue 1 Network Equipment-Building System (NEBS) Requirements:
Physical Protection
ITU-T G.712 (11/96) Transmission Performance Characteristics of Pulse Code
Modulation (replaces G.712, G.713, G.714 and G.715)
Q.552 Transmission Characteristics of 2-wire analog interface of a
Digital Exchange
Q.553 Transmission Characteristics of 4-wire analog interface of a
Digital Exchange
FCC Rules and Regulations Part 68 and Part 15 - Subpart B (Subpart B supersedes Subpart J)
UL 1459, 3rd edition UL Standard for Safety Telephone Equipment
UL 1950 UL Standard for Safety of Information Technology Equipment
CEN EN 500 081-1 Electromagnetic compatibility generic emission standard Part 1
Residential, commercial and light industry
EN 500 082-1 Electromagnetic compatibility generic immunity standard Part 1
Residential, commercial and light industry
EN 60 950/A2 Safety of information technology equipment including electrical
business equipment