Verilink AS2000: The Basics (880-502981-001) Product Manual - Manual (Page 92)

Compliance Statements
A-4 Verilink Access System 2000: The Basics
5. Disabling AC or DC signaling detectors are not applicable.
6. The DIDCSU is not to be connected to cabling that requires
over voltage protection.
7. The round trip delays through the DIDCSU are as follows:
• Minimum—125 µ
s
• Typical—250 µ
s
• Maximum—500 µ
s
Tolerance to
Wander
The following statement(s) comply with OFTEL OTR001 on page
W.4 (2) TR2AAB:
Tolerance to wander is provided by the E1 framer device and the
line interface device.
• The line interface device has a 32-bit buffer.
• The framer device has a two-frame elastic buffer that provides
a buffer sufficient to tolerate 125 microseconds of wander.
This exceeds the buffer size of 18 microseconds required in
W.4.3.3.
Certifications and Compliance
The Verilink Dual-line Shelf power supply (PWR 2940) complies
with the following specifications and agencies:
• Underwriters Laboratory (UL)
• Electrical Safety (UL 1950 no deviation)
• Telephone Equipment (UL 1459 second edition)
• Federal Communications Commission (FCC) Part 15
• FCC Part 68—FCC Rules for Registration of Telephone
Equipment (October 1992)
• Canadian Standards Association (CSA)
• Electrical Safety (CSA C22.2 #950)
• Electromagnetic Interference (CSA C108.8-M 1983)
• DOC
• European Community
• Telecommunication Terminal Equipment Directive
(91/263/EEC)
• Low Voltage Directive (73/23/EEC)
• EMC Directive (89/336/EEC)
• Electrical Safety (EN 60950/IE 950)