There are several ways which loopbacks can be placed in and on Soneplex units for extended testing of circuits. Listed are several ways of providing these loopbacks: 1. At the HLXR location, provide a physical cord loop from the Network “IN” to the “OUT” jacks on the face of the unit. This provides a hard loop to run any stress test the customer requires. Once testing is completed, this cord loop will have to be removed. 2. If a repair person is at the customer location, they can access the HLXR unit and from the Main Menu, go to the HLX Configuration screen and change the Loopback Time Out to “0” min- utes. Then, operate the loopback normally and the HLXR will stay in loop as long as the cust- omer wants to test the circuit. Once the testing is completed, release loop back. The Loopback Time Out can be changed back to 120 minutes any time after testing is completed. 3. If remote access is available, the central office and HiCap center are also capable of provid- ing loop on the circuit for testing. They would access the shelf and, from the Main Menu, go to the Unit Configuration Screen, HLX Configuration Menu and then go to the Loopback Configuration sub-menu. Next, change the Loopback Timeout Period to “0” minutes. Have the customer loop-up the circuit normally and perform desired test for as long as required. Once testing is completed, the Loopback Timeout Period should be changed back to “120” minutes. See example below. Soneplex ® Loopback 6/00 • 1270 application note HLX LOOPBACK CONFIGURATION Group: 1 Slot: 1 Circuit ID: HLXC Activation Code : 1101001111010011 HLXC Programmable Lpbk : ENABLED ESF Inband Loopback : ENABLED HLXR NID Loopback : ENABLED HLXR Activation Code : 1100011101010100 HLXR Programmable Lpbk : DISABLED HRX-1 Activation Code : 1100011101000001 HRX-2 Activation Code : N/A HRX Programmable Lpbk : ENABLED Common Deactivate Code : 1001001110010011 Lpbk Timeout Disable Code : 1101010111010110 Lpbk Timeout Period : 120 minutes HLXR NID Loopback Switch Setting: ENABLED Press CONTROL-A For Assistance To change the Lpbk Timeout Period, place cursor over the 120, back space till all figures are blank, then type in 0 and hit ÒENTERÓ key twice to update. ADC Telecommunications, Inc., P.O. Box 1101, Minneapolis, Minnesota USA 55440-1101 Specifications published here are current as of the date of publication of this document. Because we are continuously improving our products, ADC reserves the right to change specifications without prior notice. At any time, you may verify product specifications by contacting our headquarters office in Minneapolis. ADC Telecommunications, Inc. views its patent portfolio as an important corporate asset and vigorously enforces its patents. Products or features contained herein may be covered by one or more U.S. or foreign patents. 1270 06/00 Original © 2000 ADC Telecommunications, Inc. All Rights Reserved An Equal Opportunity Employer Web Site: www.adc.com From North America, Call Toll Free: 1-800-366-3891 • Outside of North America: +1-952-938-8080 Fax: +1-952-946-3292 For a complete listing of ADC's global sales office locations, please refer to our web site. Low Speed Loopback Status/Commands Group: 1 DS1#: 1 Unit Location - LOCAL REPEATER REMOTE ========== ========== ========== COMMANDS: Loopback: STATUS: Unit Type: HLXC HRX1 HLXR + + + + + + | | | | | | >| >| | >| | >| > NETWORK | | | | | | CUSTOMER DS1 | | HDSL | | HDSL | | DS1 | | | | | | < |< | |< | |< |< |net cust| |net cust| |net cust| + + + + + + Programmable Loopback Armed State: UNARMED Press CONTROL-A For Assistance Other loops can be placed in the circuit as required. These loopbacks may require placement by a central office technician or the HiCap technician. If additional help is required, call you local Ameritech Technical Assistance Center or ADC Technical Support at 800-366-3891 x3223. 4. Another method of keeping loopback up for a extended period is by sending a Loopback Timeout Disable Code. The way this is done is as follows: Operate the loopback in the HLXR as normal. Once the loop is up, send the following 16-bit code for 5+ seconds to disable the timeout period. The 16- bit code is: 1101010111010110. Now the customer can run test for as long as desired. Once test- ing is completed, loop-down circuit normally and timeout period will revert back to stated time frame. 5. If a loopback is needed at the central office toward the network, this can be done in one of two ways, either from the central office or remotely from the HiCap Center in the following manner. The central office technician or the HiCap technician can access the Soneplex shelf and, from the main menu, go to System Maintenance, Loopback Status/Commands sub-menu, Low Speed Loopback Status/Commands and place a loop on the central office loop toward the network. They would then go to the Unit Configuration screens and set the Lpbk Timeout Period to “0” minutes. When testing is complete, the loop must be manually released by the technician. As an alternative, you can remotely access the circuit and send a HLXC Activation Code ( 11010011) and this will loop the HLXC toward the network. After the HLXC is looped, the Lpbk Timeout Disable Code must be sent to keep the loop active for as long as the customer requires the loop. To release the remote loop, use the standard loop-dn code. . completed, the Loopback Timeout Period should be changed back to “120” minutes. See example below. Soneplex ® Loopback 6/00 • 1270 application note HLX LOOPBACK. of keeping loopback up for a extended period is by sending a Loopback Timeout Disable Code. The way this is done is as follows: Operate the loopback in