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Appendix D. Specifications
Compatibility
Nx/DBU Interface - Port 0.1-Nx56/64 (V.35 Interface)
D-2
T1 Interface
Pub 62411
ESF Format Interface
TR. 194
ESF Performance Monitoring
TR. 54016 and T1.403
Approvals
FCC Part 15, FCC Part 68, UL 1950
DCE Interface
CCITT V.35 Synchronous
Rates
56kbps - 1.536Mbps in 56k or 64k increments
Clock Options
Normal/Inverted and internal/external
Tests
Local Loopback (bilateral); Remote Loopback (V.54)
Test Pattern
511 with errored seconds display and error inject capabil-
ity
Data inversion
Menu selectable
1s Density Protection
Force 1s to network after one second of consecutive zeros
from DTE. User selectable (On/Off)
CTS, DCD, DSR
Normal or Force On
TDU 120e User Manual
61202156L2-1
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