Contents3160-A2-GB24-10 March 2001 iii Configuring DS0 Channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24Displaying DS0 Channel Assignments . . . . . . . . . . . . . . . . . . . . . 4-31Allocating Data Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33Block or ACAMI Assignment Method. . . . . . . . . . . . . . . . . . . . . . . 4-35Individual Channel Assignment Method . . . . . . . . . . . . . . . . . . . . 4-36Allocating DS0 Channels from the DTE Drop/Insert Interfaceto the Network Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-37Clearing DS0 Channel Allocation . . . . . . . . . . . . . . . . . . . . . . . . . 4-39 Providing Backup Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40 Selecting the Timing Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40Configuring for Network Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42Configuring for External Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43 Enabling the COM Port for Carrier-Mounted DSU/CSUs . . . . . . . . . . . 4-44 Deactivating the Alarm Relay for Carrier-Mounted DSU/CSUs . . . . . . 4-475 Security Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Establishing Access Security on a Port . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Setting a Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Entering a Password to Gain Access . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 Acquiring/Releasing the User Interface . . . . . . . . . . . . . . . . . . . . . . . . 5-5Acquiring the Active User Interface . . . . . . . . . . . . . . . . . . . . . . . . 5-5Releasing the Active User Interface . . . . . . . . . . . . . . . . . . . . . . . 5-6 Enabling/Disabling the Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7 User Interface Access Security for Standalone DSU/CSUs. . . . . . . . . 5-9Changing User Interface Access Security . . . . . . . . . . . . . . . . . . . 5-106 Using the Integral Modem Using the Integral Modem in Standalone DSU/CSUs . . . . . . . . . . . . . 6-1 Entering Numbers in the Phone Directories . . . . . . . . . . . . . . . . . . . . . 6-2 Initiating a Call for Front Panel Pass-Through Operation . . . . . . . . . . 6-4 Initiating a Call for PC, ASCII Terminal/Printer, orSNMP Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6 Disconnecting the Modem Connection . . . . . . . . . . . . . . . . . . . . . . . . 6-7
