Related Manuals for ADTRAN TR OCU DP
Summary of Contents for ADTRAN TR OCU DP
- Page 1 1292006 SYNC LOOP OPEN DISC NTWK CUST ® Total Reach Office Channel Unit Data Port ® Installation and Maintenance Practice Document Number: 61292006L1-5C CLEI: D4D4AS1C_ _ October 2006...
- Page 2 In no event will ADTRAN be liable for any special, incidental, or consequential damages or for commercial losses even if ADTRAN has been advised thereof as a result of issue of this document.
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Page 3: Revision History
Revision History Revision Date Description April, 2001 Initial release October, 2001 Revised to change CLEI code October, 2006 Revised to change CLEI code Conventions The following typographical conventions are used in this document: This font indicates a cross-reference link. indicates screen menus, fields, and parameters. This font indicates keyboard keys ( ). - Page 4 Total Reach Office Channel Unit Data Port Installation and Maintenance Practice Training ADTRAN offers training courses on our products. These courses include overviews on product features and functions while covering applications of ADTRAN product lines. ADTRAN provides a variety of training options, including customized training and courses taught at our facilities or at customer sites.
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Page 5: Table Of Contents
TR OCU DP Bidirectional Loopback Support ........ - Page 6 Total Reach Office Channel Unit Data Port Installation and Maintenance Practice Figures Figure 1. Total Reach Office Channel Unit Data Port ......... . . 1 Figure 2.
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Page 7: Introduction
D4 OCU DP, delivering data at rates up to 64 kbps over a single copper pair. Used in combination with the Total Reach Digital Data System-All Rate (DDS-R) termination unit (TR DDS-R), the TR OCU DP can accommodate extended loop lengths, eliminating the need for DDS repeaters. -
Page 8: Description
The TR OCU DP can interoperate over the carrier system with another TR OCU DP, DS0 DP, TR DDS-DP, 1/0 DCS, or switch. The TR OCU DP can be located in an end office, hub office, intermediate office, or Digital Loop Carrier (refer to... -
Page 9: Compliance
Compliance Table 1 lists the compliance codes for the TR OCU DP. The TR OCU DP is NRTL listed to the applicable UL standards. The TR OCU DP is only intended for installation in an enclosure installed in a restricted access location. The maximum input current at maximum load is 100 mA at −48 VDC. -
Page 10: Installation
“Circuit Board DIP Switch (SW1)”). 3. Hold the TR OCU DP by the front panel while supporting the bottom edge of the module; align the module edges to fit in the lower and upper guide grooves for the access module slot. -
Page 11: Synchronization And Led Indication
Installation Synchronization and LED Indication The TR OCU DP and TR DDS-R typically require 30 to 90 seconds to reach synchronization. Once synchronized, the LED turns green. All other LEDs remain off until network occur- SYNC rences cause them to turn on. If the units cannot synchronize, examine the T/R pair for open (or short) circuit conditions or load coils. -
Page 12: Span Power
Circuit Board DIP Switch (SW1) The circuit board DIP Switch (see Figure 3) is used to provision the TR OCU DP and is set prior to circuit board installation. Pushing the switches to the right ( ) enables the function. The... -
Page 13: Latching Loopback
SW1-8 A/B Signaling Enables the TR OCU DP to determine the state of the A and B signaling bits using signals present on the backplane on the channel bank. This method assumes that proper signaling has been maintained throughout the network tandems and cross connect systems. -
Page 14: False Loopback Immunity
Protected Loopback The ADTRAN Protected Loopback supports the DDS latching loopback standard in T1E1.2/ 99-007R1. When protected loopback is enabled, the TR OCU DP responds to latching loopback when the idle code preamble is sent prior to the latching loopback sequence specified in TR62310 and ANSI T1.107. -
Page 15: Testing
Testing TESTING Testing for the TR OCU DP is accomplished using the same test procedures for 4-wire OCU DP units. Table 5 describes cable loss for the Total Reach DDS Nyquist frequency of 13.3 kHz. The TR OCU DP is equipped with logic level bantam test access jacks that permit testing in both directions using a portable test set. -
Page 16: Dual Function Lbk Button
The TR OCU DP will execute a bidirectional loopback when performing an OCU DP loopback at the TR OCU DP. This allows a standard portable DDS test set, connected to the 4-wire customer interface of the TR DDS-R, to verify the integrity of the 4-wire loop by transmitting a test pattern and examining the returning data for synchronization and errors. -
Page 17: Table 6. Latching Loopback Activation
Testing Table 6. Latching Loopback Activation Sequence Function Byte Code Number of Received Bytes Clear existing loopbacks Transition in progress (TIP) Minimum of 35 TIP bytes X0111010 Identify device to be looped Loopback select code (LSC) Minimum of 35 LSC bytes X1010101 - OCU X0110001 - CSU X1000001 - NEI... -
Page 18: Remote End Initiated Lbk Tests
(CO) or test center. Loopbacks initiated by the TR DDS-R front panel pushbutton aid in system turnup testing or troubleshooting from the remote end. The TR OCU DP responds to a loopback command initiated at the TR DDS-R as follows: • Pressing the TR DDS-R pushbutton once initiates a loopback at the TR OCU DP toward the customer. -
Page 19: Latching Loopback Time Out
If the TR OCU DP has been remotely provisioned, the operator can alternate between remote configuration and manual switch settings by depressing the front panel pushbutton for five seconds. If the TR OCU DP is removed from the system, the unit retains previous provisioning information in nonvolatile RAM. The LED remains... -
Page 20: Deployment Guidelines
Total Reach Office Channel Unit Data Port Installation and Maintenance Practice DEPLOYMENT GUIDELINES The TR OCU DP and TR DDS-R use technology intended to eliminate the need for repeaters and concerns over impairments caused by typical noise and bridged tap. Listed below are the... -
Page 21: Maintenance
Maintenance MAINTENANCE The TR OCU DP does not require routine maintenance for normal operation. Do not attempt repairs in the field. Repair services can be obtained by returning the defective unit to ADTRAN. For more information, refer to the “Appendix A, Warranty”... - Page 22 Total Reach Office Channel Unit Data Port Installation and Maintenance Practice This page is intentionally blank. 61292006L1-5C...
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Page 23: Warranty
Appendix A Warranty WARRANTY AND CUSTOMER SERVICE ADTRAN will replace or repair this product within the warranty period if it does not meet its published specifications or fails while in service. Warranty information can be found at www.adtran.com/warranty. Refer to the following subsections for sales, support, Customer and Product Service (CAPS) requests, or further information. - Page 24 ® Carrier Networks Division 901 Explorer Blvd. Huntsville, AL 35806...