F. Technical Specifications

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

 

 

F-8

September 2002

9128-A2-GB20-80

Page 448
Image 448
Paradyne CSU, DSU, 9126-II, 9128-II manual Framing Format, Coding Format, Line Build-Out LBO