Table of Contents
61202.086L1-1
ISU 512 User Manual
iii
TXINIT .......................................................................................................................... 46
TXFA.............................................................................................................................. 47
TXADD01...................................................................................................................... 47
TXDEQ .......................................................................................................................... 47
TANULL ....................................................................................................................... 47
TCID .............................................................................................................................. 48
Call Stagger................................................................................................................... 48
Transparent 2x Clear Channel Protocol.......................................................................... 49
Quick Setup Configuration............................................................................................... 50
Dial 512K....................................................................................................................... 50
Dial 384K....................................................................................................................... 51
Dial 448K....................................................................................................................... 51
Dial 336K....................................................................................................................... 51
Video 384K.................................................................................................................... 52
Video 336K.................................................................................................................... 52
Leased Master .............................................................................................................. 52
Leased Slave and Ldm SlvMstr ................................................................................. 53
Dialing Options .................................................................................................................. 54
Hang Up Line............................................................................................................... 54
Dial Number................................................................................................................. 54
Redial Last Number .................................................................................................... 54
Answer Call.................................................................................................................. 54
Dial Stored Number .................................................................................................... 54
Store/Review Number ............................................................................................... 55
Configuring the ISU 512 for V.25 bis In-band Dialing.................................................. 56
Chapter 6. Testing ............................................................................................................ 57
Test Options ........................................................................................................................ 57
Loopback DTE.............................................................................................................. 57
Loopback Protocol....................................................................................................... 57
2047 Checker ................................................................................................................ 58
Near-End Block Errors/Far-End Block Errors (NEBE/FEBE).............................. 59
Software Version.......................................................................................................... 59
Chapter 7. Troubleshooting ........................................................................................... 61
If Self Test Fails................................................................................................................... 61
If an ISDN Network Line Reads Down .......................................................................... 61
If the Display Reads TEI1.................................................................................................. 63
If the Display Reads TEI2.................................................................................................. 64
If the Display Reads SPID{1,3,5, or 7}.............................................................................. 65
If the Display Reads SPID{2,4,6, or 8}.............................................................................. 65
Chapter 8. Specifications Summary.............................................................................. 67
Specifications and Features............................................................................................... 67
Network Interface ......................................................................................... 67
DTE Interface ................................................................................................. 67
Dialing Selections .......................................................................................... 67
Data Rates....................................................................................................... 67
