Table of Contents
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DSU IV ESP User Manual
61204.011L1-1
Cancel ............................................................................................................... 14
Up and Down Arrows .................................................................................... 14
LED Descriptions ............................................................................................ 14
Front Panel Menu Navigation ..................................................................................... 17
Front Panel Menu Structure ......................................................................................... 18
Main Menu .............................................................................................................. 18
Status ................................................................................................................. 18
Test .................................................................................................................... 18
Configuration .................................................................................................. 19
Dial .................................................................................................................... 19
VT 100 Terminal Connection and Operation .................................................................... 20
LAN Application with SNMP/TELNET Management .................................................. 23
Minimum Configuration Requirements for SNMP/TELNET Access ................... 24
Interface ............................................................................................................ 24
IP Address ........................................................................................................ 24
Subnet Mask ..................................................................................................... 24
Gateway IP Address (if required) ................................................................. 24
Special Features of this Application ........................................................................... 24
Dial Backup Application...................................................................................................... 26
Entering Dial Backup Mode ......................................................................................... 26
Operation During Critical Times ......................................................................... 26
Loss of Sealing Current .................................................................................. 26
Out of Service (OOS) Signal .......................................................................... 26
No Receive Signal ........................................................................................... 27
All 1s or all 0s Condition ................................................................................ 27
Answer Always ............................................................................................... 27
Operation During Noncritical Times .................................................................. 27
Weekend and Time of Day Lockout ............................................................. 27
Conditions for Returning to the DDS Circuit ............................................................ 27
Chapter 5. Configuration Overview
Configuration Methods ....................................................................................................... 29
AT Commands ............................................................................................................... 33
V.25 bis Commands ...................................................................................................... 34
SDLC Option ........................................................................................................... 34
Character Format ............................................................................................ 34
Command Structure ....................................................................................... 34
Bi-Sync Option ........................................................................................................ 34
Summary of Contents for 1204001L1
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