ADTRAN DSU III TDM Manual page 118

Appendix E. Specifications Summary
Backup Options
Automatic or Manual
4-wire switched 56
2-wire switched 56
1 B+D ISDN
V.32 bis
Diagnostics
Network
CSU/DSU loopbacks
User
Local DTE and loop, V.54
Test Patterns
2047, 511, DDS stress patterns 1 through 4
Clocking
Normal DDS or private network
Private network master (internal)
Private network master (external)
Physical
Dimensions
2.25"H, 8.75"W, 10.25"D
Weight
3 lbs
Power
115 VAC, 60 Hz, 8 Watts
E-2 DSU III TDM User Manual 61200063L1-20