Verilink DIU 2130 (880-503297-001) Product Manual - Manual (Page 9)

Verilink DIU 2130 ix
Download Upgrade ..................................................................................6-4
EPROM Upgrade .......................................................................................6-5
Installation .......................................................................................................6-5
Configuring a 56K DDS Module ........................................................................6-6
Status Monitoring .............................................................................................6-8
Managing Alarms ............................................................................................6-11
Alarm Detection ....................................................................................6-11
Alarm Parameters ..................................................................................6-11
Managing Loopbacks ......................................................................................6-14
Types of Loopbacks ..............................................................................6-14
V.54 Loopback ...........................................................................6-15
Verilink Proprietary In-band Loopback ......................................6-15
Local DTE Loopback ...................................................................6-15
Remote RL Lead Loopback .........................................................6-15
Loop-back Mode Configuration Options ...............................................6-15
AM2000 Loopback Activity Menu ..........................................................6-16
DDS Latching Loopbacks .......................................................................6-16
Sending Diagnostic Test Patterns ..................................................................6-17
ASCII Interface ................................................................................................6-18
Supervisory Functions ..........................................................................6-19
DIU 2130 Configuration / Diagnostic Menu Options ............................6-20
Test Functions .......................................................................................6-20
DIU/DIM Details ......................................................................................................7-1
DCE to DSU Data and Clock/Timing Signals ....................................................7-2
Send Timing ............................................................................................7-3
Network Loop Timing .............................................................................7-5
Internal Timing .......................................................................................7-6
External Timing .......................................................................................7-6
DIU 2130 Clear Channel Operation Requirements ...........................................7-7
Clear-Channel T1 Line .............................................................................7-7
Carrier Requirements ..................................................................7-8
Drop and Insert Mode .............................................................................7-8
DIU Interface Operation ...................................................................................7-8
T1 Mux Mode ...........................................................................................7-8
Drop-and-Insert Mode ................................................................7-10
CSU Timing ...........................................................................................7-13
Through Timing .........................................................................7-13
Loop Timing ...............................................................................7-13
Network Timing .........................................................................7-13
External Timing .........................................................................7-14
T1 Multiplexer Mode ..................................................................7-15
Data Equipment Timing .............................................................7-15