Paradyne COMSPHERE 3550 Series User Manual Download Page 47

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4-1

3550-A2-GB20-40

July 1999

Operating the DSU

Overview

4-2

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DCP and SDCP Operation

4-2

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Keypad

4-3

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Menu Structure

4-4

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Top-Level Menu

4-4

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Status Branch

4-4

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Health and Status

4-4

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Device Health and Status

4-4

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Expanded Health and Status

4-5

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Subnetwork Health and Status

4-5

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DTE Status

4-5

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Circuit Quality

4-5

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Identity

4-5

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Terminal Power

4-5

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Backup Branch

4-6

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Dial Backup Operation

4-6

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Configuring the Unit for Dial Backup

4-6

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Understanding Operating Modes

4-7

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Manual Backup

4-8

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Placing a Backup Call

4-8

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Manual DDS Restoration

4-8

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Manual Dial Backup Termination

4-8

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Test Branch

4-9

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Abort

4-9

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Device Test

4-9

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Loopback

4-9

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Local Loopback

4-9

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DTE Loopback

4-10

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Digital Loopback

4-10

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Remote Digital Loopback

4-10

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Bilateral Loopback

4-10

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Digital Test

4-10

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End-to-End Test

4-11

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Bit Error Rate Test

4-11

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Lamp Test

4-12

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Configuration Branch

4-12

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Selecting Menu Mode

4-12

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Selecting an Application Configuration

4-13

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Configuration Options

4-14

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Reconfiguring a DSU Port

4-14

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Reconfiguring a TDM/Flex Port

4-14

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Poll List

4-15

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Displaying the Poll List

4-15

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Changing the Poll List

4-15

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Acquiring the Poll List

4-16

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Summary of Contents for COMSPHERE 3550 Series

Page 1: ...COMSPHERE 3550 SERIES DATA SERVICE UNITS MODELS 3550 AND 3551 USER S GUIDE Document No 3550 A2 GB20 40 July 1999...

Page 2: ...uggestions about this document Please mail them to Technical Publications Paradyne Corporation 8545 126th Ave N Largo FL 33773 or send e mail to userdoc paradyne com Include the number and title of th...

Page 3: ...ervice personnel 6 General purpose cables are provided with this product Special cables which may be required by the regulatory inspection authority for the installation site are the responsibility of...

Page 4: ...COMSPHERE 3550 Series Data Service Units C July 1999 3550 A2 GB20 40 Notices...

Page 5: ...fy you in advance But if advance notice is not practical you will be notified as soon as possible You will be advised of your right to file a complaint with the FCC If your DSU causes harm to the tele...

Page 6: ...data lines you require Refer to the Technical Specifications section of Chapter 1 for V 32 DBM jack information After the telephone company has installed the requested jack you can connect the DSU wi...

Page 7: ...Model 3550 DSU Overview 2 1 Before You Begin 2 1 How to Change Hardware Straps 2 2 Where to Place the DSU 2 4 Installing the DSU 2 4 Connecting to the Network 2 5 Addressing the Unit 2 8 Connecting th...

Page 8: ...Branch 4 9 Configuration Branch 4 12 Control Branch 4 19 Messages Branch 4 20 5 Configuring the Unit Overview 5 1 Using the DCP to Set Configuration Options 5 2 Configuration Option Tables 5 5 Appendi...

Page 9: ...Rear View 3 5 3 3 Model 3551 DSU Installation and Circuit Pack Lock 3 6 3 4 Model DSU V 35 Adapter Plug Installation 3 7 3 5 Addressing Example 3 10 4 1 Model 3550 Diagnostic Control Panel 4 2 4 2 SDC...

Page 10: ...ults 4 11 4 5 Bit Error Rate Test Results 4 12 4 6 Directory Entry and Password Characters 4 18 4 7 Lead States 4 20 5 1 DSU Configuration Options 5 6 5 2 Diagnostic DSU Configuration Options 5 8 5 3...

Page 11: ...essages C 8 C 7 Dial Backup Progress Messages C 8 C 8 Command Error Messages C 9 C 9 Dial Backup Error Messages C 10 C 10 TDM Flex Error Messages C 11 D 1 Model 3550 Digital DDS Network Connector Pin...

Page 12: ...COMSPHERE 3550 Series Data Service Units vi July 1999 3550 A2 GB20 40...

Page 13: ...endices as needed Chapter 1 Provides a general overview of the DSU and its options information about equipment upgrades and conversions and the unit s technical specifications It also includes equipme...

Page 14: ...ries Network Management System User s Guide Call your sales representative to order additional product documentation Paradyne documents are also available on the World Wide Web at www paradyne com Sel...

Page 15: ...gital data service DDS network Two DTE connectors interfaces are provided for Port 1 EIA 232 D and V 35 Use the EIA 232 D connector for data rates up to and including 19 2 kbps use the V 35 connector...

Page 16: ...s Guide These are identified in the Related Documents section of the Preface which also provides information on how to order these documents Optional Features The Model 3550 DSU can be ordered with t...

Page 17: ...sharing group operate at the same speed and all receive the same data When configured for DSD digital sharing device port contention only one port at a time is allowed to send Elastic store per port...

Page 18: ...amp 5 8 watts at 115 Vac 24 Vac CT 60 HZ 3 0 115 amp 9 5 watts at 115 Vac 24 Vac CT 60 Hz 3 0 103 amp 8 6 watts at 115 Vac 24 Vac CT 60 Hz 3 0 029 amp 4 5 watts at 115 Vac 24 Vac CT 60 Hz 3 0 080 amp...

Page 19: ...u hr 29 00 Btu hr 29 21 Btu hr 22 16 Btu hr 27 30 Btu hr 563 00 Btu hr PORT RATES Async or Sync rates 64 56 48 19 2 14 4 12 0 9 6 4 8 2 4 and 1 2 kbps Other asynchronous rates e g 150 300 600 and 1800...

Page 20: ...ps 4 bps 19 2 kbps 5 bps 9 6 kbps 1 bps 4 8 kbps 0 bps 2 4 kbps 0 bps DDS NETWORK INTERFACE 3550 DSU 3551 DSU 8 pin modular jack USOC RJ48S One or two 50 pin connector USOC RJ48T DIAGNOSTIC INTERFACE...

Page 21: ...p is set for Callback or Password security then the device is compatible with a Model 3550 or 3551 V 32 DBM If Call Setup is set for Alarm or None then any V 32 modem can be used Also V 22bis at 2 4 k...

Page 22: ...3550 DSU 2 port TDM Flex Provides an additional 25 pin D subminiature connector for a total of two EIA 232 or V 35 interfaces NMS SUPPORT TDM Flex capability is fully supported by Release 4 0 or grea...

Page 23: ...ther than V 35 operation Refer to the MUX Port option set tables in Chapter 5 to change this configuration on a port by port basis Installation consists of the following steps which should be performe...

Page 24: ...a DBM a dial interface cable should have been ordered Permissive RJ11C a 6 pin modular plug at each end Feature Number 4400 F1 53x or 3600 F3 503 Programmable RJ45S an 8 pin modular plug at each end F...

Page 25: ...a TDM Flex Table 2 1 Model 3550 DSU Switch Settings Switch Position Switch Setting Function S1 1 ON default Permissive V 32 DBM transmit output level of 9 dBm S1 1 Off Programmable V 32 DBM transmit l...

Page 26: ...exceed 2500 picofarads as specified in EIA 232 D For the V 35 connector the maximum distance recommended between the DSU and the DTE is nominally 1000 feet Allow 1 to 2 feet of clearance around the DS...

Page 27: ...ion branch into view 4 Press the function key directly below Confg 5 Press the F1 key to select Opts Configuration Options The Load from screen appears 6 Press the key to bring the factory loaded unit...

Page 28: ...documentation to control and configure the DSU from the NMS 496 14576a NMS NETWORK CONNECTION CC DC HUBBING DEVICE LOW VOLTAGE AC POWER IN TO NMS 873A 30 00 HU BB ING DE VICE MOD EL 3 00 0 F3 300 Figu...

Page 29: ...e 1 Plug the DDS network interface cable into the DSU jack labeled LINE U S select either end of the cable Canada select the 8 pin end 2 Plug the other end of the cable into the modular jack USOC RJ48...

Page 30: ...must be assigned to each control and tributary DSU in your network You can assign an address within the range of 1 through 255 NOTE Do not assign the number 192 as a network address This number is res...

Page 31: ...ry by specifying the tributary s address The 6700 Series NMS accesses the DSU via its network address To access a tributary DSU the NMS first addresses the control then the tributary An address issued...

Page 32: ...llustrates cabling for an EIA 232 application the DSU with TDM Flex illustrates cabling for V 35 applications Refer to this figure as you connect your DSU to the data terminal equipment DTE Be sure to...

Page 33: ...ess the DSU s identity ID subbranch for each tributary DSU to ensure that the DSUs are properly addressed Refer to Chapter 5 for an example using the DCP if needed Procedure 1 Select Remot Remote bran...

Page 34: ...ar 5 Select DrBU to drop the backup call 6 Perform a Digital Test on the DBM Follow the Verifying the Network procedure selecting DBM instead of DSU Step 2 Verifying TDM Flex Operation If a TDM Flex i...

Page 35: ...SUs can be installed in the carrier Refer to the COMSPHERE 3000 Series Carrier Installation Manual for additional carrier and installation information The DSU is delivered ready to install in the carr...

Page 36: ...onnecting the DSU you need to contact the telephone company to coordinate your installation before connecting the DSU to their network The DSU can only be operated at the data rate for which access to...

Page 37: ...itch Position Switch Setting Function S1 1 ON default Permissive V 32 DBM transmit output level of 9 dBm S1 1 Off Programmable V 32 DBM transmit level between 12 dBm and 0 dBm ON Frame ground FG conne...

Page 38: ...and 3 J20 Left Alarm Monitoring used with the 48 Vdc Central Office Power Unit Left Disables the 48 Vdc alarm monitoring function Pins 1 and 2 This is the factory default Right Enables the 48 Vdc ala...

Page 39: ...U from the carrier Procedure 1 At the rear of the carrier set the tab on the rear connector plate into one of the slotted grooves on the carrier s backplane Loosely fasten the screws Make sure the rea...

Page 40: ...rcuit card into the top and bottom circuit card guides for the slot that contains the rear connector plate Slide the DSU into the slot aligning the circuit card with the rear connector plate until the...

Page 41: ...a V 35 adapter cable Feature Number 3000 F1 510 b Connect the 34 pin end of the DSU s V 35 cable to the V 35 adapter then tighten the screws on each side of this connector 8 The installed DSU is conn...

Page 42: ...rol PTPT for a point to point tributary MPTC for a multipoint control MPTT for a multipoint tributary 7 Press the F1 key to SAVE the selected configuration The Save to screen appears 8 Save the select...

Page 43: ...35 adapter plug or V 35 adapter cable Feature Number 3000 F1 510 is needed This adapter provides the interface between the 25 pin V 35 D type connector and a V 35 DTE cable Each DSU can be configured...

Page 44: ...l then the tributary An address issued from the NMS takes the format of control channel control network address tributary network address This is called link level network addressing Figure 3 5 shows...

Page 45: ...in The SDCP accesses the DSU in Carrier 1 Slot 1 The top level menu your starting point of the carrier mounted DSU is displayed F1 1 01 A DSU 9 6 C Local Remot F2 F3 From the first line of this exampl...

Page 46: ...ion of Chapter 4 for further test information as well as more detail on how to configure and operate the DSU Refer to Appendix A to determine how best to access each test Device Test Devic Local Loopb...

Page 47: ...nual DDS Restoration 4 8 Manual Dial Backup Termination 4 8 Test Branch 4 9 Abort 4 9 Device Test 4 9 Loopback 4 9 Local Loopback 4 9 DTE Loopback 4 10 Digital Loopback 4 10 Remote Digital Loopback 4...

Page 48: ...ee Refer to Appendix A as you perform the procedures described in this guide to help you quickly learn more about your DSU DCP and SDCP Operation There are two types of control panels one for each DSU...

Page 49: ...have a 2 line 16 character liquid crystal display LCD and a keypad through which you can Monitor the unit s health and status Initiate dial backup Initiate diagnostic tests Load or change the unit s...

Page 50: ...progress Refer to Appendix A as you read about the branches and subbranches Status Branch The Status Stat branch reports on the health and status of the DSU DBM TDM Flex the DTE interface the quality...

Page 51: ...ased upon a monitoring period of approximately 3 seconds The DTE interface statuses are displayed in sets Use the or key to scroll each set of lead statuses into view Circuit Quality Circuit Quality C...

Page 52: ...onfigurations Backup is controlled primarily by software configuration options in the DBM or ExtBU and Backup option sets The unit can be configured so that backup can be either automatic or manual Ba...

Page 53: ...the amount of time that the DDS circuit must be back in service before automatic restoration is attempted from 1 to 60 minutes the default is 5 minutes TriesTimeOut Specify the overall time limit duri...

Page 54: ...Go to the Bkup option set under the Confg branch and set Auto Bckup to Disab 2 Select Bckup Backup branch to select a telephone number from the Backup Directory If the telephone number in the Backup...

Page 55: ...ays the message Command Complete Device Test The Device Devic Test uses a test pattern generator built into the DSU If a DBM is installed the DBM must be in Idle mode with no call in progress if you w...

Page 56: ...ce is looped back from the receiver to the transmitter in the remote DSU and returned to the local DSU In Remote Digital Loopback the local DSU control or tributary puts the remote DSU into Digital Lo...

Page 57: ...ts by putting the remote DSU or DBM into Digital Loopback and checking the returned pattern for errors or by simultaneously executing a BERT in the local DSU The test continues until aborted from the...

Page 58: ...d return you to the DSU Test menu so you can abort the test Once aborted the LCD and LEDs stop flashing Configuration Branch The Configuration Confg branch allows you to configure or customize the DSU...

Page 59: ...x A as you follow these steps Procedure 1 Select Confg Configuration branch 2 Press the F1 key to select Opts Configuration Options subbranch The Load from screen appears 3 Press the or key to scroll...

Page 60: ...the Edit Save menu 8 Select SAVE F1 9 Select Activ F1 from the Save to screen Command Complete appears to confirm that the configuration is saved Reconfiguring a TDM Flex Port The Connecting the DSU t...

Page 61: ...Procedure 1 Select PList F2 2 Select Displ F1 The following screen appears F1 A d d r 2 A c t i v e F2 F3 The number after Addr in this example 2 is the network address of the poll list member The mem...

Page 62: ...ed as previously shown F1 D e l 3 f r PL i s t Command Complete F2 F3 The tributary DSU associated with the address is removed from the poll list Acquiring the Poll List To automatically generate a po...

Page 63: ...tered similarly to entering a number into Dir 5 Select Chang F1 to add or change a telephone number The Enter Dir screen appears Press the F1 key to increment the Directory entry indicator the default...

Page 64: ...address Addr is the network address of the local DSU It is only available from the Local branch The DSU s network address is a number in the range of 1 to 254 if the DSU has a DBM installed The DBM a...

Page 65: ...Local branch This selection allows you to monitor the port at any given time When selected the port s lead activity is reflected in the DCP circuit designation status indicators TXD RXD etc on the fac...

Page 66: ...isplay command to determine what caused the event If the CCN event was caused by a change in the external leads select Displ F1 to see the current states of the leads If a positive voltage is detected...

Page 67: ...y only no changes S Control branch Display External Leads only no changes The 3550 Series DSUs are shipped from the factory with the security level set to Unlock When the DCP is locked only the Local...

Page 68: ...COMSPHERE 3550 Series Data Service Units 4 22 July 1999 3550 A2 GB20 40...

Page 69: ...stomer defined set of stored configuration options By predetermining and storing a frequently used configuration the stored option set can be loaded quickly as operating requirements change NOTE The P...

Page 70: ...F3 directly below Confg 3 Select Opts Configuration Options 4 Select storage area Activ Remt Usr1 etc from the Load from screen If the unit is a control and you select Remt enter the network address o...

Page 71: ...ption sets available to the unit of configurations are sent to the tributary and saved to its Activ area Remember that you cannot save to the factory loaded configurations Example Using the DCP In thi...

Page 72: ...Type NonD Next NonD Disr F2 F3 F1 Chang Diag Opts DSU DBM Gen F2 F3 F1 Edit Save SAVE DSU Diag F2 F3 F1 Edit Save DSU Diag DBM F2 F3 F1 Edit Save Diag DBM Gen F2 F3 F1 DTE Port EIA232 Next EIA232 V 3...

Page 73: ...eed DBM Configuration Options Table 5 13 Port Speed External DBU Configuration Options Table 5 14 Understanding the Tables Refer to the appropriate tables when configuring the DSU Each configuration o...

Page 74: ...s only displayed if a TDM Flex is installed and enabled DDS Select the DDS network when the DSU is connected to a DDS network and the network provides the timing or when a LADS configuration with a re...

Page 75: ...not have an extended network 19 2 PowrLvl 6 Next 6 0 10 Prev 19 2 kbps Power Level only displayed when Full Mode is enabled and when Rate Kbps is set to 19 2 kbps This configuration option selects th...

Page 76: ...o diagnostic communications with remote devices 2nd Ch bps 400 Next 100 400 800 1200 1600 Prev In band Secondary Channel Diagnostic Transport Speed in bps only displayed when Diag Type is set to NonD...

Page 77: ...s are to be allowed that is there will be no diagnostic communications with remote devices 2nd Ch bps 400 Next 100 400 800 1200 1600 Prev In band Secondary Channel Diagnostic Transport Speed in bps on...

Page 78: ...ct if the DSU is a control PTPC or MPTC configuration Trib Select if the DSU is a tributary PTPT or MPTT configuration LinkConfig Pt Pt or M Pt Next Pt Pt M Pt Prev Link Configuration Used to define a...

Page 79: ...ed is from 0 seconds up to 50 seconds Packet Delay 0s Next 0s 1s 2s 5s Prev Packet Delay specified in seconds only displayed when Position is set to Cntrl and Full Mode is enabled Used only for a cont...

Page 80: ...take timing from the remote DBM s clock source Ext Select external clock source when timing is taken from the external Transmit Timing lead on Port 1 not displayed if a TDM Flex is installed Prt1 or...

Page 81: ...n the DBM s transmitted data TXD lead serial data is clocked into the DBM s elastic store using clock provided by the extended circuit received clock lead The DBM s own system timing is used to clock...

Page 82: ...rity checking is performed This feature is provided for customers that provide data services to other customers that may not have Model 3550 or 3551 DSUs and DBMs RxPwd password Next Chang Prev Receiv...

Page 83: ...rned Off when RTS is turned Off at the tributary DBM The V 13 sequence is sent over the network to tell the control to turn ON LSD only for a MPTC or MPTT configuration Disab Select when configured fo...

Page 84: ...ilable The external DBU must be set for Dial on DTR None Select to disable the external DBU This is the default setting Rate Kbps 9 6 Next 64 56 38 4 28 8 19 2 14 4 9 6 4 8 2 4 1 2 Disab Prev Backup R...

Page 85: ...Prev Clear to Send Control Controls the behavior of the CTS lead when abnormal conditions are present e g No Signal or Test Mode as determined by the configuration options RTS Cntrl and Circ Assur Std...

Page 86: ...ior of the DSR lead in response to a No Signal Out of Service or Out of Frame alarm from the network Enab Select if a network alarm is to turn DSR Off Disab Select if a Model 3551 DSU with a V 32 DBM...

Page 87: ...Loopback occurs when a Digital Loopback occurs Enab Select for a DTE Loopback to be run whenever a Digital Loopback occurs Disab Select for the DSU to ignore requests for a Bilateral Loopback Ext Lead...

Page 88: ...racter only displayed with no TDM Flex installed Specifies the length of a character including the parity bit but excluding the start and stop bits This configuration option only applies when Async Sy...

Page 89: ...n Enab Select if the DSU should try and attempt to establish a dial backup connection to a remote DSU after the Network Time out Disab Select if a dial backup connection should not be attempted when C...

Page 90: ...point dial backup this configuration option selects the multiple calling cycle in which the DBM steps through the Backup Directory attempting to call each valid telephone number in the directory or se...

Page 91: ...ention between the ports in a digital sharing group Host Select if the Host protocol must enforce the order of transmission to avoid collisions DSD Select for Digital Sharing Device if selection of th...

Page 92: ...its configuration option only displays 1 6 to 10 Select the asynchronous bits per character Stop Bits 1 Next 1 2 Prev Stop Bits Specifies the number of stop bits in an asynchronous character This conf...

Page 93: ...Const Next Const Cntrl Mark Prev Receiver Carrier Select only displayed when Full Mode is enabled Enables the TDM Flex receiver circuitry to simulate switched carrier operation using the V 13 codes on...

Page 94: ...en Full Mode is enabled Causes the DSU to report an alarm for the port if the port s DTR lead is Off for more than 30 seconds The DCP displays DTR Alarm and reports the alarm to NMS Enab Select if you...

Page 95: ...e DSU verifies that the sum of the individual port speeds does not exceed the primary aggregate speed set in Rate Kbps in the DSU option set If the sum of the port speeds equals the primary aggregate...

Page 96: ...tion Verification For all ports the DSU verifies that the sum of the individual port speeds does not exceed the primary aggregate speed set in Rate Kbps in the DBM option set If the sum of the port sp...

Page 97: ...orts the DSU verifies that the sum of the individual port speeds does not exceed the primary aggregate speed set in the external DBU s Rate Kbps configuration option If the sum of the port speeds equa...

Page 98: ...COMSPHERE 3550 Series Data Service Units 5 30 July 1999 3550 A2 GB20 40...

Page 99: ...is point from anywhere in the menu by pressing the key Pressing this key immediately terminates any operation or work in progress The following shows an example of the top level menu for a standalone...

Page 100: ...COMSPHERE 3550 Series Data Service Units A 2 July 1999 3550 A2 GB20 40...

Page 101: ...DSU Menu A 3 3550 A2 GB20 40 July 1999...

Page 102: ...BM if installed and the backup circuit if there is a backup call established If a TDM Flex is installed testing is available on a per port basis NOTE If the Test branch does not appear the DSU is in D...

Page 103: ...ion Option Tables section Chapter 5 when configuring the unit or when more detailed configuration information is needed Instructions Configuration Worksheets can be used for reference or they can be u...

Page 104: ...eneral Value Position Cntrl Trib LinkConfig Pt Pt M Pt Resp Period 1 2 10 TribTimOut Chang min sec 5 sec to 10 min Link Delay 0s 1s 2s 5s 10s 20s 50s Packet Delay 0s 1s 2s 5s M Pt SymPrt Enab Disab DB...

Page 105: ...sab DSR on Tst Enab Disab Port Speed DSU Value Prt1 xx x 64 56 48 19 2 9 6 4 8 2 4 1 2 Disab Prt2 xx x 64 56 48 19 2 9 6 4 8 2 4 1 2 Disab Underspeed Disab Prt1 Prt2 Port Speed DBM Value Prt1 xx x 14...

Page 106: ...2 Disab TxClkSource Int Ext DDS Prt1 Prt2 Diagnostic DSU Value Diag Type NonD Disr Mixed None Diagnostic DBM Value Diag Type NonD Disr Mixed None Diagnostic External DBU Value Diag Type Disr None Dia...

Page 107: ...2 5 RTS Cntrl FrcOn DTE Port Speed DSU Value Prt1 xx x 64 56 48 19 2 9 6 4 8 2 4 1 2 Disab Prt2 xx x 64 56 48 19 2 9 6 4 8 2 4 1 2 Disab Underspeed Disab Prt1 Prt2 Port Speed DBM Value Prt1 xx x 14 4...

Page 108: ...COMSPHERE 3550 Series Data Service Units B 6 July 1999 3550 A2 GB20 40...

Page 109: ...ar on the control panel while a command is executing or when a command is prevented from executing are also described Status Indicators Status indicators provide information on the current operating c...

Page 110: ...1 Dial Yellow DBM is active Rapid flashing Call setup in progress Slow flashing Call established but in Standby mode Steady ON Backup call established and active TXD RXD RTS CTS DSR DTR LSD Green Inte...

Page 111: ...figuration options from one of the default factory loaded option sets stored in the PTPC PTPT MPTC or MPTT DBM Device Fail Internal failure is detected in the DBM DBM Disable DBM transmitter is disabl...

Page 112: ...Bit Error Rate Test BiL Bilateral Loopback Dev Device Test DL Digital Loopback DT Digital Test DTE DTE Loopback E E End to End Test Lamp Lamp Test NetL Network Loopback RL Remote Digital Loopback TM T...

Page 113: ...ne of the following initiators DTE Data Terminal Equipment FP Front Panel the DCP NMS Network Management System Remt Remote DSU Redun Fan Alarm Indicates a problem with the fan on the 48 Vdc Central O...

Page 114: ...ail1 oldest Fail2 and Fail3 most recent The reason for failed dial attempts include Abort Call User aborted call BadPermiss A dial attempt was made but a backup connection already exists Bad Phone Una...

Page 115: ...nal lead alarm a or b Facil DDS facility alarm Indicates a network facility alarm MUX Indicates a MUX TDM Flex failure NoResp The active poll list member did not respond Probable cause a facility prob...

Page 116: ...ng call DBM Callback Callback sequence has initiated DBM Connected DBM is connected DBM Disabled No calls can be initiated or answered DBM Ringing Ringing at remote DBM or external DBU dial backup uni...

Page 117: ...ss 2 Either wait for the test to finish or abort the test 3 If there is no test in progress check configuration options Not in Menu Command is not in the supported set Use a valid command No Response...

Page 118: ...was no answer from the remote DBM or modem 1 Check that remote DBM is configured for many calls 2 Make sure remote DBM is properly connected to the dial network 3 Check operational status of remote DS...

Page 119: ...DSU or DBM in the PrtSp configuration sub menu DSD Speeds diff Not all of the TDM Flex ports in the digital sharing group are set to the same speed Set all of the ports in the digital sharing group t...

Page 120: ...e and an attempt is made to configure it for underspeed no underspeed port is required Disable the port s underspeed configuration option via the appropriate path DSU or DBM in the PrtSp submenu Port...

Page 121: ...all ports are configured for asynchronous operation Correct the problem in one of two ways 1 Increase the DSU s DBM s or ExtBU s data rate 2 Decrease the DSU DBM or ExtBU port speeds and the Async rat...

Page 122: ...COMSPHERE 3550 Series Data Service Units C 14 July 1999 3550 A2 GB20 40...

Page 123: ...pin assignments Table D 4 provides the 3600 Hubbing Device s CC IN DC OUT jack pin assignments Figure D 3 shows the Model 3551 DSUs rear connector plate Table D 5 provides the EIA 232 V 24 connector...

Page 124: ...ived data from local loop 8 R Received data from local loop Table D 2 Model 3550 Dial Analog Network 6 Pin Cable Connector Pin Assignments Pin Circuit Function 3 T Tip V 32 DBM 4 R Ring V 32 DBM 3000H...

Page 125: ...CIRD Input 3 Signal Ground Ground 4 DCORD CCISD Output Table D 4 3600 Hubbing Device CC IN DC OUT Jack Pin Assignments Pin Signal Name In Out CC IN DC OUT 1 V Pass Through N C N C 2 DCOCTS CCIRTS IN R...

Page 126: ...COMSPHERE 3550 Series Data Service Units D 4 July 1999 3550 A2 GB20 40 Figure D 3 Model 3551 DSU 25 Pin EIA 232 25 Pin V 35 Rear Connector Plate 3000 F1 021...

Page 127: ...ector II DCE Source alternate external control Lead II 14 SBA 118 Secondary Transmit Data 15 DB 114 Transmitter Signal Element Timing DCE Source 16 SBB 119 Secondary Received Data 17 DD 115 Receiver S...

Page 128: ...d RTS 5 D Clear to Send CTS 6 E Data Set Ready DSR 8 F Received Line Signal Detect LSD 20 H Data Terminal Ready DTR 21 J Ring Indicator RI 18 L Local Loopback LL 19 N Remote Digital Loopback RL 24 11...

Page 129: ...Pin Assignments D 7 3550 A2 GB20 40 July 1999 Figure D 5 EIA 232 D Crossover Cable 4951 035F...

Page 130: ...X U W A B C F H E T R S P L Z W U X V A B F C E H P1 PIN P2 PIN 99 16328 C A D B KK MM LL NN P1 C A D B KK MM LL NN P2 15 FT 0 5 FT TXD A TXD B RXD A RXD B TX CLK A TX CLK B RX CLK A RX CLK B EXT CLK...

Page 131: ...DSU s control panel or a 6700 Series NMS External dial backup units DBUs like 3800 Series modems can also be used for backup when the External Backup ExtBU configuration option is enabled refer to Cha...

Page 132: ...COMSPHERE 3550 Series Data Service Units E 2 July 1999 3550 A2 GB20 40 Figure E 1 Point to Point Application Configurations with Internal and External V 32 Backup...

Page 133: ...a 6700 Series NMS Figure E 2 shows sample multipoint configurations Using this application backup is provided via modems rather than a DBM In this case a matrix switch at the control site switches da...

Page 134: ...COMSPHERE 3550 Series Data Service Units E 4 July 1999 3550 A2 GB20 40...

Page 135: ...del 3550 2 port TDM Flex 3000 F1 510 106476237 ACCULINK 3100 Series CSU Wall Mount Adapter for Model 3550 3100 F1 400 406941674 Model 3551 Digital DDS Network Cables 50 pin to eight 6 pin Multiple Net...

Page 136: ...twork Interface Cables RJ48S Network Cable 14i cord included with Model 3550 8 pin to 6 pin Modular 7i Cable Model 3550 in Canada 14i 3600 F3 501 25i 3600 F3 502 3000 F1 006 107331381 107331365 106239...

Page 137: ...DSU Wall Mount Bracket 1 17I Velcror Brand Straps 2 RS 310 C L Bracket 1 6 x 1 0I Screws 4 12 24 Screws 2 10 32 Screws 2 Clip Nuts 2 870 1751 0014 870 1770 0022 870 1809 0023 870 1817 0023 506 0025 00...

Page 138: ...r Cable Pin to Pin EIA 232 Cable straight connection 15i 818 2759 0111 10i 835 4507 1011 V 35 Crossover Cable 15i 835 1092 0011 Model 3551 Digital DDS Network Cables 50 pin to eight 6 pin Multiple Net...

Page 139: ...e DTE and Digital Loopbacks operating simultaneously in the same DSU This test is selected from the General configuration option set Bilat Lpbk Enab Bit Error Rate Test BERT A test used to analyze the...

Page 140: ...one for the DBM and the data can be transmitted through either also see active core CSA Canadian Standards Association CTS The state of the Clear to Send lead Data Communications Equipment DCE A devi...

Page 141: ...te test BERT from the remote DSU The local DSU receives test data loops it back to the transmitter and returns it to the network Digital Test DT A test used to test two DSUs and the circuit between th...

Page 142: ...ation Sector of the International Telecommunications Union an advisory committee established by the United Nations to recommend communications standards and policies Before March 1993 it was called CC...

Page 143: ...the DSU s or DBM s diagnostic operation permissive interface A dial modem operating mode characterized by a fixed output power level of 9 dBm It is one of two possible operating modes for a DBM conne...

Page 144: ...c Unit SDU A circuit card that plugs into a dedicated slot slot 0 in the COMSPHERE 3000 Series Carrier to provide the shared diagnostic control panel SDCP and network management interfaces to the DSUs...

Page 145: ...nchronous operation 1 3 Auto Backup 4 7 Auto Bckup 5 21 AutoAnswer 4 6 5 13 automatic setup and restoration 1 2 AutoRestor 4 7 5 21 AutoRetrain 5 12 B backup branch 4 6 menu selections 4 8 configurati...

Page 146: ...8 command error messages C 9 progress messages C 8 communication line DSU 1 6 V 32 DBM 1 7 compatibility DBM 1 7 DSU 1 6 network DSU 1 6 NMS 1 5 Confg 4 12 Config Corrupt message C 3 configuration bra...

Page 147: ...n 2 7 3 9 interface 1 6 speed message C 5 DDS F alarm message C 4 DDS network connection figure 2 7 default setting 5 5 descriptions identity 4 6 Dev DBM test C 3 DSU test C 4 Devic 4 4 4 9 message C...

Page 148: ...eaming 5 17 MUX port configurations 5 26 DTE Port 5 17 5 23 DTR Alarm C 2 Discon DBM error message C 10 failure message C 6 message C 7 status indicator C 2 DTR Alarm 5 20 5 26 DTRCallCon 5 15 dynamic...

Page 149: ...device C 3 expanded C 6 subnetwork C 7 subnetwork 4 4 heat dissipation 1 5 I ID 4 5 identity descriptions 4 6 report 4 5 Idle mode 4 7 4 8 Illegal Char DBM error message C 10 impedance 1 7 inbound 1...

Page 150: ...C 6 format C 3 health and status C 3 progress C 8 command C 8 dial backup C 8 subnetwork health and status C 7 mode DBM C 3 Dial Backup 4 7 External Backup 4 7 Idle 4 7 Menu 5 5 Standby 4 7 Model 3550...

Page 151: ...14 Opts 4 12 Orig 4 7 outbound 1 3 Out of Frame Threshold alarm C 2 OutofFrameThresh message C 5 OutofServc alarm C 4 Out of Service alarm C 2 Overspeed 5 20 5 24 P P Tst message C 5 Packet Delay 5 1...

Page 152: ...nStr Conflc error message C 12 RTS CTS Del 5 26 RTS TxCrr Conflc error message C 12 RxCarrSel 5 25 RXD status indicator C 2 RxElasStor 5 7 5 13 RxPwd 5 14 S safety CSA 1 4 instructions B saving config...

Page 153: ...ode DBM test message C 3 DSU test message C 4 port test message C 5 remote digital loopback 2 12 3 12 Test message C 7 Thresh message C 7 Time Division Multiplexer 1 2 TM DBM test C 3 DSU test C 4 por...

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