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Chapter 1 - Introduction and Description
1.7.5 Internal Modem
Modulation ITU-T V.34; AT&T V.32 terbo; ITU-T V.32bis, V.32, V.22bis, V.22; Bell
212A and 103 (North America) or V.23 and V.21 (international)
Speeds 300 bps to 33.6K bps
Commands Fully AT command compatible
Usage Synchronous full duplex over unconditioned 2-wire or 4-wire leased
line; asynchronous half or full duplex over 2-wire dial-up
Line Interface RJ-11C jack for dial-up and 2-wire or 4-wire leased line; in Canada,
one CA02B connector
1.7.6 Internal DSU
Speed 56K, 19.2K, 9.6K, 4.8K, or 2.4K bps
Format Synchronous DDS or compatible
Usage Full duplex over LADS (Local Area Data Set) or two-pair non-loaded
metallic wire
Line Interface DDS interface with an RJ-48 keyed jack
1.7.7 ISDN Terminal Adapter
Description Integral ISDN terminal adapter card
Operating Mode ISDN Basic Rate; 1B+D or 2B+D
Synchronous Data Rates 2.4–128 Kbps
Clocking Normal network clock (slaved to network receive clock); private
network master (internal); external clock of DTE data
Commands Menu system
D-Channel Switch AT&T 5ESS
®
, 5E6; NT DMS-100™, BCS-32;
Compatibility Siemens Stromberg-Carlson EWSD
®
, National ISDN-1;NEC
International Switch
Line Interface 2-wire ISDN Basic Rate 2B1Q U-interface; ANSI T1.601-1992
compliant; RJ-48 jack
B-Channel Aggregation BONDING Protocol, Mode 1
1.7.8 Voice/Fax Channel
Number of Channels One or two channels
Voice Digitization Rates 9600 and 16K bps
Automatic Fax Group 3 fax rates
Modulation/Demodulation (2400, 4800, 7200 and 9600 bps)
Analog Interfaces FXS, FXO, and E&M (channel 1 only)
Signaling DTMF
Line Interface FXS and FXO: RJ-11 jacks
E&M: RJ-48 jack