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46 TA/V.34 and TA Owner’s Manual
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Northern Telecom DMS100 —Central office switch running
software version BCS-31 or above.
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Layer 1 (physical): Conforms to ITU-T I.430 Standard.
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Layer 2 (link): Conforms to Northern Telecom specification
NIS 208-6, Issue 1.0 section C, based on CCITT
Recommendation Q.921.
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Layer 3 (signaling): For BCS-31,-32, -33, and -34 conforms to
NIS 208-6, Issue 1.0 sections D & E, based on CCITT
Recommendation Q.931. For BCS-34, conforms to National
ISDN-1.
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AT&T 5ESS —Central office switch running generic program
5E4.2, or above for type A terminal.
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Layer 1 (physical): Conforms to ITU-T I.430 Standard.
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Layer 2 (link): For 5E6 and 5E7, conforms to 235-900-331,
October 1990, Part III, based on CCITT Recommendation
Q.931. For 5E8 and 5E9, conforms to National ISDN-1.
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Layer 3 (signaling): For 5E6 and 5E7, conforms to 235-900-
331, October 1990, Part IV, based on CCITT
Recommendation Q.931. For 5E8 and 5E9, conforms to
National ISDN-1.
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National ISDN-1 (NI-1) and National ISDN-2 (NI-2): AT&T
Document 235-900-341, Issues 1.00 December 1991 and 2.00
February 1993, National ISDN Basic Rate Interface Specification
for 5E8 Software Release, Part 3 (Layer 2) and Parts 4, 4.1, 4.2
and Part 6 (Layer 3). Northern Telecom Document NIS S208-6
Issues 1.0 (BCS-34) April 1991, and 1.1 (BCS 34) August 1992,
ISDN Basic Rate User-Network Interface Specification, Section C
(Layer 2) and Sections D and E parts 4.0-4.4 (Layer 3).
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NET3:
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Layer 1: Conforms to ITU I.430.
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Layer 2: ITU-T Q.920 & Q.921 Recommendation.
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Layer 3: ITU-T Q.930 & Q.931 Recommendation.