T400 T1 CSU User Manual
Contents
1. Pack into the appropriate slot It should slide in smoothly and snap into place Equipment T Equipment R Network R Network T 48V Alarm 3 Alarm 2 Alarm 1 Signal Ground Equipment R1 Network R1 Frame Ground Network T1 Equipment T1 Figure 4 Circuit Pack Connector Pin Assignments November 1993 61210 015L1 1C Page 8 23 Powering the Unit Stand Alone Unit Only If the unit is line powered slide the Circuit Pack back into the housing remove the power cable from the back of the housing and refer to Section 2 05 If the unit is to belocally powered from the customer s 48 V supply connect the power cable as shown in 5 Replace the cover and plastic front plate after connecting the power cable After supplying the unit with power the POWER LED on the front of the Circuit Pack should be on TO ADTRAN Wall Mount or Customer s 48V Supply erminal i 35 o Eph o 906 e 2 lt 5 Ves Y Ground Screw Back of Base _ Board Power and Signal Note Strain relief tie mounts to the ground screw and loops around cable Termination November 1993 61210 015L1 1C Page 9 Figure 5 Local Power Termination 24 Connecting to the Network and CPE Stand Alone Unit Only The rear panel of the Stand Alone housing has two 8 pin modular connectors Plug network cables into connector labeled NETWOR2. are provided on the faceplate of the circuit pack The first is the POWER LED which indicates whether the unit is receiving power If the unit detects a loss of signal LOS from the network it will be indicated by NET LOS This condition drives a double pole relay alarm which can be tested using two of three pins on the terminal block in the Stand Alone Pin 7 is the common connection pin 6 normally opened and pin 5 normally closed On the card edge connector of the Circuit Pack pin 25 is the common connection pin 29 normally opened and pin 31 normally closed If the unit detects a loss of signal from the Customer Premise Equipment CPE the EQ LOS LED alerts the user 14 Loopback Twoforms of loopback are supported by the CSU in which the unit takes the signal received from the network and transmits itback toward thenetwork Anunframed all 1ssignalis transmitted toward the CPE and the signal received from the CPE is ignored The first form Manual Loopback is activated by depressing the MAN LBswitch on the front plate of the Circuit Pack The unit will stay in MAN LB until the switch is pressed again switch is in the out position The second form of loopback is Network Loopback activated by sending the unit the 1 in 5 pattern 1000010000 from the network side for 5 seconds This form of loopback can be deactivated by sending the 1 in 3 pattern 100100100 for5 seconds Patterns may be unframed or framed SForESF framing Regar
3. repair this product within five 5 years from the date of shipment if the product does not meet its published specifications or if it fails while in service For detailed warranty repair and return information refer to ADTRAN s Equipment Warranty and Repair and Return Policy 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 205 971 8722 Technical Support 800 726 8663 Sales eei 800 827 0807 Repair and Return Address ADTRAN Inc Customer Service Department 901 Explorer Boulevard Huntsville Alabama 35806 2807 November 1993 61210 015L1 1C Pageiii Thispageleftblankintentionally November 1993 61210 015L1 1C Pageiv TABLE OF CONTENTS 1 GENEBRAL iiiosckeusseccas crece 1 11 Unit Overview eene fonte ren 1 12 Power Options 1 1 3 Mca cease teet Hn 4 14 Loopback er eoe mee edes 4 1 5 Line Build Out LBO 4 1 6 Automatically Setting Transmit LBO 5 2 02 7 21 Setting the Options Switches 7 22 Installing the Circuit 8 2 3 Powering the Unit Stand Alone Unit On
4. ADRAN Type 400 T1 CSU TYPE 400 T1 CHANNEL SERVICE UNIT User s Manual Type 400 T1 CSU Stand Alone 1210015L1 Type 400 T1 CSU Circuit Pack 1210018L1 61210 015L1 1C FCC regulations require that the following information be provided to the customer in this manual 1 This equipment complies with Part 68 of the FCC rules The required label is inside the rear access door affixed to the lower side of the chassis 2 If your telephone equipment TI CSU causes harm to the telephone network the Telephone Company may discontinue your service temporarily If possible they will notify you in advance But if advance notice isn t practical you will be notified as soon as possible You will be advised of your right to file a complaint with the FCC 3 Your telephone company may make changes in its facilities equipment operations or procedures that could affect the proper operation of your equipment Ifthey do you willbegivenadvancenoticesoasto give youan opportunity to maintain uninterrupted service 4 If you experience trouble with this equipment TI CSU please contact ADTRAN at 205 971 7800 for repair warranty information The telephone company may ask you to disconnect this equipment from the network until the problem has been corrected or until you are sure the equipment is not malfunctioning 5 This unit contains no user serviceable parts 6 The following information is required when applying to your local telephone comp
5. For use with private networks only an option to source sealing current preventing corrosion of the circuit is available For most applications sealing current will not be sourced November 1993 61210 015L1 1C Page 1 661 42q1200N OL TISIO 0IcI9 2 asvg Network 4 Wire Provides Local Exchange Carrier Provides Circuit Alarms Inter Exchange Carrier or Alarms Channel Bank up to Loopbacks Private Facilities Loopbacks Multiplexer 655 Feet Signal Signal PBX etc Regeneration Regeneration Surge Surge Protection Protection CPE ADTRAN ADTRAN T1 CSU T1 CSU Channel Bank Multiplexer PBX etc CPE Figure 1 T1 CSU Application ure18e1 xorg NSO LL OOP ed T 0 exnSrq NOW 3 ado woud Shida LIWSNVHL ap 22 91 9 0 1 HOLINOW 501 3ouns Nios 13N sol ANSWdINOA ann vam 1v201 9001 N3dO ATIWWHON 095015 a 34201 I 1 43N LIWSNVHL 3A139384 7 IH vit UA oSv NOILOALOYd HOLINON 501 2 005 4007 3ouns 1noo3 NI LIN 1N3MdIno3 XHOML3N Page 3 61210 015L1 1C November 1993 13 Alarms Both models provide alarms which facilitate troubleshooting of the communication channel Three visual alarms
6. K and CPE cables into connector marked CUSTOMER If the modular connections are not to be used then pins 10 13 on the terminal block inside the housing are used for the network connection and pins 1 4 for CPE connections These pins should be connected as shown in Table C Table C TB1 Network and CPE Connections Pin Function CPE T1 transmit to CPE tip CPE R1 transmit to CPE ring CPET receive from CPE tip CPE receive from CPE ring NETWORK receive from NETWORK tip NETWORK 1 receive from NETWORK ring NETWORK T transmit to NETWORK tip NETWORK R transmit to NETWORK ring Before connecting the CSU to the carrier network notify the carrier With no signal present from the CPE connect the CSU to the network demarcation November 1993 61210 015L1 1C Page 10 25 Testand Monitor Access Six front panel Bantam jacks provide test and monitor access for both the network and equipmentside of the CSU Signals received from the network are monitored by the NET MONjack while the signal received from the CPE is monitored by the EQ MONjack These monitor jacks are resistively isolated from the received signals so the circuit can be monitored while in service The other four Bantam jacks are break and test jacks used for out of servicetesting Thesejacks bypassthe connections ofthe modular jacks NET INand NET OUTare used to simulate network input and
7. any for leased line facilities The user may select any one of the three via TI CSU option switches Digital Facility Service Interface Order Network Service Type Code Code Jacks 1 544 Mbps Digital Interface SF 04DU9 B 6 0F RJ48C 1 544 Mbps Digital Interface ESF 04DU9 C 6 0F RJ48C 1 544 Mbps Digital Interface ESF with B8ZS 04DU9 S 6 0F RJ48C FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio interference Operation of this equipment a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense SHIELDED CABLES MUST BE USED WITH THIS UNIT TO ENSURE COMPLIANCE WITH CLASS A FCC LIMITS WARNING Change or modification to this unit not expressly approved by the party responsible for compliance could void user authority to operate the equipment November 1993 61210 015L1 1C Pageii WARRANTY AND CUSTOMER SERVICE ADTRAN will replace or
8. dless of which form of loopback is used the LB LED on the front plate of the Circuit Pack indicates the unit is in loopback 15 Line Build Out LBO Switch SW1 on the Circuit Pack selects LBO for the CSU Separate LBOs set transmit levels on network and CPE sides of the CSU see Tables A and B On the network side the amount of attenuation is specified in dB and is selected for 0 7 5 15 or 22 5 dB of attenuation as specified by the carrier On the CPE side of the CSU the amount of attenuation is determined by setting the maximum amount of cable between the CSU and CPE available at 133 266 399 533 and 655 feet November 1993 61210 015L1 1C Page 4 Receivers on both sides of the CSU contain Automatic Line Build Out circuitry compensating for cable signal loss Table A Network Transmit LBO SW1 1 SW1 2 SWI1 3 Attenuation dB Off On On 0 Off On Off 7 5 Off Off On 15 Off Off Off 22 5 On N A N A Automatic Table Customer Transmit LBO SW1 4 SW1 5 SW1 6 Cable Length feet Off Off On 0 133 On On Off 134 266 Off On Off 267 399 On Off Off 400 533 Off Off Off 534 655 L6 Automatically Setting Transmit LBO An additional option allows transmit LBO towards the network to be set automatically by the CSU based on the level of the signal received from the network By setting SW1 1 for AUTO SW1 2 and SW1 3 are ignored and the transmit line build out is set automatically Sett
9. ing SW1 1 to MANUAL allows SW1 2 and SW1 3 to control the transmit line build out November 1993 61210 015L1 1C Page 5 Thispageleftblankintentionally November 1993 61210 015L1 1C Page 6 2 INSTALLATION 21 Settingthe Option Switches Remove the plastic front panel of theStand Alone housing and slide the Circuit Pack out of the front of the unit See Figure 3 for the location of switches SW1 SW3 and SW4 Switch SW1 selects the LBO see descriptions of SW1 1 through SW1 5 in Tables A and B Switch SW3 selects the powering option If line power is supplied by the carrier place the switch in the LINE position and in LOCAL position if not Switch SW4 selects whether sealing current is sourced or not For all applications other than a private network this switch should be placed in the SINK position Only if the CSU is to be used in a private network and sealing current is desired should SW4 be in the SOURCE position Circuit Pack Figure3 Switch Locations November 1993 61210 015L1 1C Page 7 22 Installing the Circuit Pack Figure 4 illustrates theedgeconnector pinout of the Circuit Pack If the Circuit Pack is to be used in an Type 400 NCTE rack or a channel bank these pin assignments should be consistent with the rack or bank being used After the switches have been optioned correctly insert the Circuit Pack into the rack or bank by firmly pushing the Circuit
10. k EQ LOS Loss of Signal from CPE LB Network or manual loopback Mechanical Circuit Pack Size 1 40 Wide 6 Diameter 5 59 High Weight Mounting Type 400 equipment shelves or Stand Alone housing Power Span Power 60 mA at 30 V if line powered Local Power 20 50 at 48 V Environmental Temperature Operating 0 to 50 C Storage 20 to 70 C Relative Humidity to 95 non condensing ADRAN 901 Explorer Drive Huntsville AL 35806 2807 205 971 8000 FAX 205 971 8699 November 1993 61210 015L1 1C Page 17 Thispageleftblankintentionally November 1993 61210 015L1 1C Page 18
11. ly 9 24 Connecting the Network and CPE Stand Alone Unit Only sse 10 2 5 Test and Monitor Access sss 11 3 TROUBLESHOOTING 13 4 MAINTENANCE 15 5 SPECIFICATIONS iude n 17 FIGURES Figure 1 1 CSU Application ssssseeeeee 2 Figure2 400 T1 CSU Block 3 Figure3 Switch Locations ssssssssssseeeeee 7 Figure4 Circuit Pack Connector Pin Assignments 8 Figure 5 Local Power Termination sess 9 TABLES Table A Network Transmit LBO sess 5 Table Customer Transmit LBO 7 5 Table C 1 Network and CPE Connections 10 Table D 400 T1 CSU Troubleshooting Guide 13 Table E 17 November 1993 61210 015L1 1C Pagev Thispageleftblankintentionally November 1993 61210 015L1 1C Pagevi 1 GENERAL 11 Unit Overview The ADTRAN Type 400 T1 CSU provides the T1 interface between customer premise equipment channel banks T1 multiplexers PBXs etc and the carrier network as shown in Figure 1 The unit complies with Part 68 of FCC Rules and with applicable sections of AT amp T 62411 ANSI T1 102 and ANSI T1 403 The unit provides functions such as surge
12. output of the CSU A T1 BERT bit error rate test set can be used to simulate network allowing the CPE testing Likewise EQ INand EQ OUT are used to simulate the CPE with a T1 BERT set allowing the network testing The CSU on the other end of the circuit could be looped up to test only the network On either end the ability to send loop up and loop down codes is available with most BERT sets November 1993 61210 015L1 1C Page 11 Thispageleftblankintentionally November 1993 61210 015L1 1C Page 12 3 TROUBLESHOOTING Table D contains a list of symptoms and remedies for problems possibly encountered during installation of the ADTRAN Type 400 T1 CSU If the symptom persists contact ADTRAN Customer Service Technical Support at 800 726 8663 Table D Type 400 T1 CSU Troubleshooting Guide Symptom Remedy POWER LED not On NET LOS LED is On EQ LOS LED is On If locally powered ensure that SW3 is in the LOCAL position Verify that the power cable is installed per Figure 5 For the Stand Alone verify the cable from network demarcation is in NETWORK modular jack on the rear of the housing or tied to the TB1 per Table C If all connections appear correct the far end CSU can be looped using a BERT tester to send the loop up code or the manual loopback at the other end to isolate the problem to the either the far end premises or the network If the problem persists af
13. protection signal regeneration alarms and loopbacksnecessary for circuit operation and fault isolation see the functional block diagram in Figure 2 The unit is transparent to ESF and SF framing formats as well as AMI and B8ZS line coding The unit is available as a Circuit Pack 1210 018L1 or as a Stand Alone model 1210 015L The Stand Alone consists of a metal housing with signal and power terminations an external power supply is available if needed and the Type 400 T1 CSU Circuit Pack The Stand Alone housing has four holes on the bottom which allow the unit to be wall mounted using the template and screws provided The Circuit Pack can be removed from the housing by removing the plastic front panel and sliding the unit out of the housing allowing access to the option switches The Circuit Pack which can be purchased without the housing may also be used in a general purpose Type 400 NCTE rack or in a Type 400 T1 CSU slot of a channel bank such as the ADTRAN ACTI 12 Power Options The Circuit Pack may receive power from the 48 V supply of the Type 400 NCTE rack local power or from the carrier on line line power The line power from the Telco is 60 mA of constant current and is provided over transmit and receive pairs The Stand Alone may also receive local or line power The local power is supplied by the customer s 48 V supply with an available power cable or by a 48 V wall mount power supply purchased with the unit
14. ter the loopback has been activated the problem is within the network or the far end CSU and the carrier should be notified If the problem disappears after loop up then the cause is at the far end customer premises For the Stand Alone verify the cable from CPE is in CUSTOMER modular jack on the back of the housing or tied to TB1 per Table C If all connections appear correct a BERT set can be used in the NET IN and NET OUT bantam jacks to further test the CPE November 1993 61210 015L1 1C Page 13 Thispageleftblankintentionally November 1993 61210 015L1 1C Page 14 4 MAINTENANCE The ADTRAN T1 CSU requires no routine maintenance to operate Repairs should not be performed in the field Repair services can be obtained by returning the unit to the ADTRAN Repair Departmentafter obtaining a Return Material Authorization RMA November 1993 61210 015L1 1C Page 15 Thispageleftblankintentionally November 1993 61210 015L1 1C Page 16 5 SPECIFICATIONS TableE liststhe ADTRAN Type 400 T1 CSU specifications TableE Specifications Network and Customer Interface Line 4 Wire T R T1 and R1 DataRate 1 544 Mbps 50 kbps SignalFormat Bipolar with B8ZS transparency Output Amplitude 6 Volts peak to peak nominal ConnectorType 8 position modular RJ48C Faceplate Indicators POWER Receiving line or local power NET LOS Loss of Signal from networ
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