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F. Technical Specifications
F-8
September 2002 9128-A2-GB20-80
Table F-5. ISDN PRI DBM (Optional Feature) Technical Specifications
Specification Criteria
Standards Compliance ANSI T1.403 – 1989 (physical layer) and AT&T 62411
Bellcore SR-NWT-002120, Issue 1 – May 1992
ITU Q.921 – 1992 (link layer)
ITU Q.931 – 1993 (network layer)
TR-TSY-00860, ISDN Calling Number Identification
Services – February 1989, and Supplement –
June 1990
Power Consumption 8 mA at 120 VAC
Average power 1 watt (3.4 Btu per hour)
Weight 0.15 lbs. 2.4 oz. (0.07 kg 68 grams)
Switch Compatibility National ISDN-2 (NI-2), ATT 4ESS, or ATT 5ESS
Service Supported PRI, NI-2, ATT 4ESS custom, or ATT 5ESS custom
(supporting up to 23 B-channels), with Circuit-Switched
Data capability.
Framing Format D4, ESF
Coding Format B8ZS
Line Build-Out (LBO) 0.0 dB, –7.5 dB, –15 dB, –22.5 dB
ANSI PRM Selectable