ADTRAN FT1 User's Manual
Contents
1. Siemens FT1 DP 12452071 Northern Telecom FT1 DP 1245208L1 ALCATEL FT1 DP 1245205L1 WECO D4 FT1 DP 1245201L1 FNID T400 124204612 Siemens FT1 DP 124204712 Northern Telecom FT1 DP 124204812 Alcatel FT1 DP 124204012 AT amp T FT1 DP 124204112 0 0 00 FNID T400 124204212 FNID standalone The ADTRAN Single Wide FT1 Repeater provides a means of extending the digital subscriber loop serving range using a centrally located unit There are no manual option settings on the Single Wide FT1 Repeater 61245211L1 5A Trademarks Any brand names and product names included in this document are 1 trademarks registered trademarks or trade names of their respective holders The ADTRAN Single Wide FT1 Repeater provides three faceplate LEDs which indicate signal quality error conditions and loopback status See Table A for a description of the LED indicators Operating power is derived from an ADTRAN FT1 DP independent of line impedance or wire gauge The repeater uses some current then passes the span power on to the FNID The Single Wide FT1 Repeater operates at line losses up to 35 25 dB at 200 kHz in both directions from the repeater and regenerates the 2B1Q signals to meet the transmitted power spectrum of Bellcore TA NWT 0001210 For deployment guidelines refer to subsection 5 of this practice The Single Wide FT1 R2. guidelines should produce performance in excess of 107 BER LL LW me a lt O T W Yn oc lt Q O x Q Ww O D q O ce N LL O TE O Z W kk o zZ x o O 1 2 3 4 5 6 7 WORKING LENGTH OF 26 GAUGE CABLE KFT Figure 4 CSA Deployment Guidelines 61245211L1 5A Section 61245211L1 5 Issue 1 6 SPECIFICATIONS Specifications for the ADTRAN Single Wide FT1 Repeater appear in Table D 7 WARRANTY AND CUSTOMER SERVICE ADTRAN will replace or repair this product within ten years from the date of shipment if it does not meet its published specifications or fails while in service see ADTRAN Equipment Warranty Repair and Return Policy and Procedure Return Material Authorization RMA is required prior to returning equipment to ADTRAN For service RMA requests or further information contact one of the following numbers ADTRAN Customer Service ADTRAN Telco Technical Support 800 726 8663 Standard support hours 0 c0 Monday Friday 7 a m 7 p m CST Emergency suppott 7 days week 24 hours day Sales arrene iian ii 800 827 0807 RMA repair service cceeceeeeeeee 256 963 8722 Repair and Return Address ADTRAN Inc Customer and Product Support CAPS Department 901 Explorer Boul
3. Loopback detected toward NET 2 Section 61245211L1 5 Issue 1 61245211L1 5A The connector pinout for the Single Wide FT1 Repeater is shown in Figure 2 1 GND 2 NC 3 T 4_CUSTOMER 4R LOOP 1 5T EEO 6 R LOOP 1 7 NC 8 NC 9 NC 10 GND 11 NC 12 NC Figure 2 ADTRAN Single Wide FT1 Repeater Connector Pinout Revision History This is the first issue of this practice In subsequent issues revisions will be summarized in this paragraph 2 INSTALLATION CAUTION This equipment contains static sensitive components Be sure to follow proper electrostatic discharge procedures before handling or installing the equipment The Single Wide FT1 Repeater circuit pack is shipped in a separate carton and must be installed in an environmental apparatus case Remove the Single Wide FT1 Repeater circuit pack from the carton and visually ensure that damage has not occurred during shipping or handling If damage has occurred file a claim immediately with the carrier then contact ADTRAN customer service The Single Wide FT1 Repeater circuit pack is designed for installation in a pre wired apparatus case These are described in Table B Table B FT1 Repeater Apparatus Cases FT1 Repeaters Description 1150027L1 115002712 4 Slot Dual T1 form air 4 slot Dual T1 form gel 1152010L3 2 slot D
4. CAUTION SUBJECT TO ELECTROSTATIC DAMAGE OR DECREASE IN RELIABILITY HANDLING PRECAUTIONS REQUIRED Section 61245211L1 5 Issue 1 December 1998 CLEI Code T1R6GMJDAA SINGLE WIDE FT1 REPEATER INSTALLATION MAINTENANCE PRACTICES Contents l General ste etn el eee ee ee 1 Do Installations veka ta et e e ee A aE aenn 3 3 Installation of FT1 Repeaters in ADTRAN Apparatus Cases innesi ssteissi enan isea a e in s 4 Maintenance s sssssessesesersrsrsrsrsrerees 5 CSA Deployment Guidelines 6 Specifications ne GAG Aap a 7 Warranty and Customer Service Appendix A FT1 Loopbacks 0 c ci eeeseeeseeeeeeeeeneeeeeees A 1 Figures Figure 1 ADTRAN Single Wide FT1 Repeater 0 0 0 0 1 Figure 2 ADTRAN Single Wide FT1 Repeater Connector Pinout 00 eeeeeeeseseseeeeeeeeeeseeeeeeeeees 3 Figure 3 FT1 Repeater Network Loopback 0 cee 4 Figure 4 CSA Deployment Guidelines 0 0 0 eee 5 Figure A 1 FT1 Loopbacks 0 cececceeceeseeeseeceeseeeseeaeeeees A 1 Figure A 2 FT1 DP Network Loopback ieee A 1 Figure A 3 FT1 DP CPE Loopback sses A 1 Figure A 4 FT1 Repeater Network Loopback 0 A 2 Figure A 5 FNID Network Loopback 0 00 teeeeeeeteeee A 2 Figure A 6 FNID CPE Loopback 000 ee eeeeeeeeeneeeeeees A 2 Tables Table A LED Indications 00 0 eeeesesseeseneesereeeeneeeees 3 Table B FT1 Repeater Apparatus Cases eee eee 3 Table C Loop Insertion Loss Data cceeceseese
5. d FNID network loopbacks can be activated by the DDS latching loopback sequence The latching Latching loopbacks for the FT1 system are activated by transmitting the following latching loopback sequence in the primary DSO of the FT1 system A Minimum of 35 transition in progress TIP bytes N0111010 B Minimum of 35 loopback select code LSC bytes as defined in Table A 1 C Minimum of 100 loopback enable LBE bytes N1010110 D Minimum of 35 all 1s bytes S1111111 plus a minimum of 100 LBE bytes N 1 iterations where N is the number of channel units of the same type i e same LSC that lie between the test center and the loopback to be operated This step is only used when there are identical channel units in tandem E Minimum of 32 far end voice FEV bytes N1011010 A 25 second watchdog timer is activated between the 35 TIP bytes and 35 LSC bytes between the 35 LSC bytes and 100 LBE bytes and between the 100 LBE bytes and 32 FEV bytes The timer requires the correct receipt of the latter sequences less than 25 seconds after receiving the prior sequence This prevents inadvertent setting of the latching loopbacks Latching loopbacks for the FT1 system are deactivated by transmitting the following latching loopback sequence in the primary DSO of the FT1 system Minimum of 25 TIP bytes N0111010 Table A 1 FT1 Loopback Select Codes loopback sequence is detected in the primary DSO of the FT1 s
6. entral otice O7 Channel Bank Figure A 1 FT1 Loopbacks DSX 1 DS1 __interface FT1 DP HDSL Interface gt FNID gt Central Local Loop Customer Office D4 Premises Channel Bank Figure A 2 FT1 DP Network Loopback DSX 1 DS1 Interface ET1 DP HDSL Interface lt FNID Central Local Loop Customer Office D4 Premises Channel Bank Figure A 3 FT1 DP CPE Loopback 61245211L1 5A Section 61245211L1 5 Issue 1 A 1 There is one loopback available to the FT1 Repeater The FT1 Repeater Network loopback is a digital loopback toward the CO as shown in Figure A 4 The loopback is initiated by the DDS latching loopback code for NEI Position 1 N1000001 The NEI Position 1 latching loopback is detected in the primary DSO of the FT1 circuit the channel where the FT1 DP is physically installed to control the looping of the FT1 circuit When the FT1 circuit is looped all DSOs in use will be looped The DSOs in use will also be transmitted on to the customer This loopback is also initiated by the craft interface or by the RLB push button when available at the FT1 DP There are two loopbacks available to the FNID The FNID network loopback loops the FT1 signal back toward the network The FNID CPE loopback loops the FT1 signal back toward the customer The FNID network loopback is a digital loopback toward the CO as illustrated in Figure A 5 This loopback is initiated by the DDS latching loopback code NEI Position 1 N1000001 for a
7. epeater is housed in an environmental apparatus case NOTE Do not remove the metal shell enclosing the circuit packs Table A LED Indications 1245211L1 Description and Indications FT1 RPTR CUST LBK ADRAN This LED indicates the FT1 signal quality and errors on the Network side loop The NET LED will flash once when an errored second is detected on NET side loop If the NET LED flashes yellow rapidly six times per second sealing current is present and the FT1 Repeater is attempting to synchronize with the other FT1 circuit elements NET No synchronization with the FT1 DP E Green Synchronized with good signal quality on NET loop gt 2dB margin above 10 BER Yellow Synchronized with marginal signal quality on NET loop lt 2 dB margin above 10 BER Synchronized with poor signal quality on NET loop 10 BER This LED indicates the FT1 signal quality and errors on the Customer side loop The CUST LED will flash once when an errored second is detected on CUST side loop No synchronization with the FNID Green Synchronized with good signal quality on CUST loop gt 2dB margin above 10 BER Yellow Synchronized with marginal signal quality on CUST loop lt 2 dB margin above 10 BER Synchronized with poor signal quality on CUST loop gt 107 BER This LED indicates the status of a loopback detected at the FT1 Repeater No loopback detected at the FT1 Repeater Yellow
8. es loopback activation and deactivation methods for the ADTRAN Fractional T1 system Loopback activation and deactivation is controlled with the push button located on the front panel through craft interface or latching loopback codes A push button labeled LBK located on the front panel of the FNID controls the activation of remote loopback Pressing this button activates the FT1 DP CPE loopback Two push buttons labeled LCL and REM respectively are located on the front panel of the FT1 DP Press REM on the FT1 DP in order to activate FT1 Repeater loopback when available or FNID network loopback To deactivate Remote loopback either press REM or wait for the loopback timeout if enabled Craft interfaces located on the front panels of the FNID and FT1 DP allow access to the FT1 device through an RS 232 type interface All loopbacks for the FNID FT1 Repeater and FT1 DP can be controlled from the craft interface The craft interface located on the FNID faceplate can activate and deactivate FNID network and FNID CPE loopbacks and remotely activate and deactivate FT1 Repeater network loopback FT1 DP network loopback and FT1 DP CPE loopback The craft interface located on the FT1 DP faceplate can activate and deactivate FT1 DP network loopback and FT1 DP CPE loopbacks and remotely activate and deactivate the FT1 Repeater networkloopback FNID network loopback and FNID CPE loopback FT1 DP FT1 Repeater an
9. eseeeteeeeeees 4 Table D HDSL FT1 Repeater Unit Specifications 6 Table A 1 FT1 Loopback Select Codes ceceeeeeeeeeees A 3 1 GENERAL This practice provides installation and maintenance procedures for the ADTRAN Single Wide Fractional T1 FT1 Repeater ADTRAN P N 124521111 illustrated in Figure 1 The ADTRAN Single Wide FT1 Repeater is a device used to extend the effective range of an ADTRAN FTI circuit It is capable of doubling the deployment range of standard HDSL providing a carrier service area CSA compliant loop on both sides of the Single Wide FT1 Repeater n 00000000000000000000000 Uuvenay bibbesper YaLV3ad3u Ll4 SS SS OS Ss amp S Gs amp CG amp CG amp CG Sa amp Gs amp CG e e N20 ZZQZZ 6050250 zi gt a a j SS am o C Figure 1 ADTRAN Single Wide FT1 Repeater Features of the Single Wide FT1 Repeater include e 2B1Q line coding e Range up to 12 kft of 24 gauge wire each direction from FT1 Repeater Lightning protection e Remote loopback control e Coexists with DDS and ISDN repeaters in same apparatus case e Remote performance monitoring capability This unit is used in conjunction with any span powering FT1 DP for the central office and span powered FNID remote end as follows Part Number Unit Name 1245206L1
10. evard Huntsville Alabama 35806 2807 Table D HDSL FT1 Repeater Unit Specifications Loop Interface Full Duplex Echo Cancelling 784 kbps per pair 392K baud per pair Service Range Loop Loss Bridged Taps Performance Return Loss HDSL Tx Signal Level Input Impedance Power Input Power Tests Diagnostics Defined by Carrier Service Area Guidelines 35 25 dB maximum 200 kHz Single Taps lt 2 kft Total Taps lt 2 5 kft Compliant with Bellcore TA NWT 001210 20 dB 40 kHz to 200 kHz 13 5 dBm span powered by FT1 DP 3 W maximum Loopback initiated with DDS latching loopback codes Self test initiated from FT1 DP or FNID Physical Dimensions sssssseesesseseesessesssessessesees 6 36 long 2 60 high 0 7 deep 12 ounces Environment Temperature Storage Part Number Operating Standard ADTRAN Single Wide FT1 Repeater 1245211L1 6 Section 61245211L1 5 Issue 1 61245211L1 5A APPENDIX A FT1 LOOPBACKS 1 GENERAL This Appendix is an overall reference to the loopback capabilities of the ADTRAN Fractional T1 system Included in the Appendix is a description of the FT1 loopbacks and the methods for activating the FT1 loopbacks 2 FT1 LOOPBACKS Figure A 1 shows the application from the central office CO to customer premises The FT1 Repeater is shown for convenience and not as a necessary part of the FT1 network The loopbacks shown are as follows FT1 DP network loopbac
11. he ADTRAN FT1 DSL system including the ADTRAN Single Wide FT1 Repeater is designed to provide Fractional DS1 based services over loops designed to comply with Carrier Service Area CSA guidelines CSA deployment guidelines are given below 1 All loops are non loaded only 2 For loops with 26 AWG cable the maximum loop length including bridged tap lengths is 9 kft 3 For loops with 24 AWG cable the maximum loop length including bridged tap lengths is 12 kft Any single bridged tap is limited to 2 kft 5 Total bridged tap length is limited to 2 5 kft 6 The total length of multi gauge cable containing 26 AWG cable must not exceed 12 3 L 9 L3 in kft L Total length of 26 AWG cable excluding bridged taps in kft L8 Total length of all bridged taps in kft This deployment criteria is summarized in the chart shown in Figure 4 Recommended maximum local loop loss information for PIC cable at 70 F 135Q resistive termination is provided in Table C Table C Loop Insertion Loss Data Frequency Maximum Loss Hz dB An approximation for the maximum amount of wideband noise on a DSL local loop as measured by a 50 kbps filter is lt 31 dBrn An approximation for the maximum level of impulse noise as measured using a 50 kbps filter on an DSL loop is lt 50 dBrn NOTE These approximations are to be used as guidelines only and may vary slightly on different loops Adhering to the
12. k FT1 DP CPE loopback C FT1 Repeater network loopback D FNID network loopback E FNID CPE loopback w gt There are two loopbacks available to the FT1 DP The FT1 DP network loopback loops the FT1 signal back to the network The FT1 DP CPE loopback loops the FT1 signal back to the customer The FT1 DP network loopback is a digital loopback toward the CO see Figure A 2 This loopback is initiated by the OCU latching loopback command N1010101 by a push button when available or by the craft interface The OCU latching loopback code is detected in the primary DSO of the FT1 circuit the channel where the FT1 DP is physically installed to control the FT1 circuit looping When the FT1 circuit is looped all DSOs in use will be looped back toward the network The DSOs will be transmitted on to the customer The FT1 DP CPE loopback is a digital loopback toward customer premises as shown in Figure A 3 This loopback is initiated by the RLB button on the FNID or by the craft interface When the FT1 circuit is looped all DSOs in use will be looped back toward the customer All DSOs sent toward the network will be filled with all 1s DSX 1 FT1 Interface FT1 DP Repeater FNID T1 NIU Customer e lt _ lt Premises eae YC pood XXX gt o Equipment
13. ndicates a faulty circuit pack refer to the apparatus case installation maintenance practice for the entry and pressurization control Replace the faulty circuit pack Request a loopback test from the CO per Appendix A ADTRAN does not recommend field repair of the circuit pack Repair services may be obtained by returning the defective unit to the ADTRAN Repair Department Testing the FT1 Repeater at the CO The ADTRAN Single Wide FT1 Repeater performs the loopback described in Appendix A DS1 Interface gt Customer Premises Figure 3 FT1 Repeater Network Loopback This loopback is initiated by the DDS latching loopback code for NEI Position 1 N1000001 The NEI Position 1 latching loopback is detected in the primary DSO of the FT1 circuit the channel in which the FT1 DP is physically installed to control the looping of the FT1 circuit When the FT1 circuit is looped all DSOs in use will be looped The DSOs in use will also be transmitted on to the customer This loopback is also initiated from the craft interface or the LB push button at the FT1 DP FT1 Self Test When a self test is initiated at the FT1 DP a repeater failure will be indicated as an FNID failure on the craft interface screens Likewise if a self test is initiated at the FNID a repeater failure will be indicated as an FT1 DP failure on the craft interface screens 4 Section 61245211L1 5 Issue 1 61245211L1 5A 5 CSA DEPLOYMENT GUIDELINES T
14. non repeatered loop or NEI Position 2 N1000001 for a repeatered loop by the craft interface or by the RLB button at the FT1 DP The NEI Position 1 latching loopback is detected in the primary DSO of the FT1 circuit the channel in which the FT1 DP is physically installed to control the looping of the FT1 circuit When the FT1 circuit is looped all DSOs in use will be looped The loopback keep alive code will be transmitted to the customer The FNID CPE loopback is a digital loopback toward customer premises as shown in Figure A 6 This loopback is initiated by the craft interface When the FT1 circuit is looped all DSOs in use will be looped The DSOs in use will be filled with all 1s toward the network HDSL DSX 1 DS1 Interface Interface FT1 DP Repeater FNID i i o Central Customer Office Premises D4 Local L Channel Bank Qca OOP Figure A 4 FT1 Repeater Network Loopback DSX 1 DS1 Interface Interface wA L FT1 DP HDSL FNID g SS o Central Local Loop e Customer Office Premises D4 Channel Bank Figure A 5 FNID Network Loopback DSX 1 DS1 Interface Interface FT1 DP HDSL FNID _ gt gt Central Local Loop Customer Office Premises D4 Channel Bank Figure A 6 FNID CPE Loopback A 2 Section 61245211L1 5 Issue 1 61245211L1 5A 3 LOOPBACK ACTIVATION AND DEACTIVATION This section describ
15. ual T1 form gel 1152010L4 2 slot Dual T1 form air 1150057L1 4 slot Universal air 1150057L2 4 slot Universal gel 1150058L1 8 slot Universal air 1150058L2 8 slot Universal gel 3 INSTALLATION OF SINGLE WIDE FT1 REPEATERS IN ADTRAN APPARATUS CASES When installing the Single Wide FT1 Repeater in an ADTRAN apparatus case refer to the ADTRAN Installation Maintenance practice for the apparatus case being used CAUTION The housing must be considered to be under pressure and should be handled accordingly The Single Wide FT1 Repeater dissipates a maximum of 3 watts 61245211L1 5A Section 61245211L1 5 Issue 1 3 4 MAINTENANCE The ADTRAN Single Wide FT1 Repeater requires no routine maintenance In case of equipment malfunction perform an in band loopback from the central office CO as described in Appendix A of this practice If a malfunction is confirmed replace the Single Wide FT1 Repeater FT1 Repeater Loopbacks The Single Wide FT1 Repeater has looping capability through the channel which allows for digital loopback to help isolate faults The looping is accomplished remotely from the CO switch as described in Appendix A The FT1 Repeater network loopback is a digital loopback toward the CO as illustrated in Figure 3 DSX 1 Interface FT1 Repeater Central Office Local Loop D4 Channel Bank FT1 NID Replacement of Circuit Packs When testing i
16. ystem When Loopback Select Loopback Select 5 5 FT1 Device Code Name Code Byte the loopback is activated on the device the whole FT1 bandwidth is looped The FEI DP uaresa otak OCU loopback cccceeeeees N1010101 FT1 DP FT1 Repeater and FNID each FT1 Repeater NEI Position 1 loopback N1000001 respond to a different loopback select FNID without repeater NEI Position 1 loopback N1000001 code allowing for sectionalization of the FNID with repeater NEI Position 2 loopback N1000001 network during testing Table A 1 is a list of FT1 devices and their loopback select code 61245211L1 5A Section 61245211L1 5 Issue 1 A 3 4 LOOP UP STATE In the loop up state the active FT1 loopback will provide a continuous loop for the FT1 bandwidth The data flow is continuously monitored for the loop deactivation commands to deactivate the loopbacks Also a loopback timeout is checked If the loopback timeout is enabled any loopback that is in the loop up state in excess of the loopback timeout will be deactivated A 4 Section 61245211L1 5 Issue 1 61245211L1 5A
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